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分类: LINUX

2016-01-10 07:43:34

guest_selinux(8)                                guest SELinux Policy documentation                                guest_selinux(8)



NAME
       guest_u - Least privledge terminal user role. - Security Enhanced Linux Policy


DESCRIPTION
       guest_u  is an SELinux User defined in the SELinux policy. SELinux users have default roles, guest_r.  The default role has
       a default type, guest_t, associated with it.

       The SELinux user will usually login to a system with a context that looks like:

       guest_u:guest_r:guest_t:s0

       Linux users are automatically assigned an SELinux users at login.  Login programs use the SELinux User  to  assign  initial
       context to the user's shell.

       SELinux policy uses the context to control the user's access.

       By default all users are assigned to the SELinux user via the __default__ flag

       On Targeted policy systems the __default__ user is assigned to the unconfined_u SELinux user.

       You can list all Linux User to SELinux user mapping using:

       semanage login -l

       If you wanted to change the default user mapping to use the guest_u user, you would execute:

       semanage login -m -s guest_u __default__


       If you want to map the one Linux user (joe) to the SELinux user guest, you would execute:

       $ semanage login -a -s guest_u joe



USER DESCRIPTION
       The SELinux user guest_u is defined in policy as a unprivileged user. SELinux prevents unprivileged users from doing admin‐
       istration tasks without transitioning to a different role.


SUDO
X WINDOWS LOGIN
       The SELinux user guest_u is not able to X Windows login.


NETWORK
       The SELinux user guest_u is able to connect to the following tcp ports.

              53

              88,750,4444

              9080


       The SELinux user guest_u is able to connect to the following tcp ports.

              53

              88,750,4444

              9080


BOOLEANS
       SELinux policy is customizable based on least access required.  guest policy is extremely flexible and has several booleans
       that allow you to manipulate the policy and run guest with the tightest access possible.



       If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn
       on the authlogin_nsswitch_use_ldap boolean. Disabled by default.

       setsebool -P authlogin_nsswitch_use_ldap 1



       If you want to deny user domains applications to map a memory region as both executable and writable, this is dangerous and
       the executable should be reported in bugzilla, you must turn on the deny_execmem boolean. Enabled by default.

       setsebool -P deny_execmem 1



       If  you  want to deny any process from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean.
       Enabled by default.

       setsebool -P deny_ptrace 1



       If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled
       by default.

       setsebool -P domain_fd_use 1



       If  you want to allow all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules boolean.
       Disabled by default.

       setsebool -P domain_kernel_load_modules 1



       If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

       setsebool -P fips_mode 1



       If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.

       setsebool -P global_ssp 1



       If you want to allow httpd cgi support, you must turn on the httpd_enable_cgi boolean. Disabled by default.

       setsebool -P httpd_enable_cgi 1



       If you want to unify HTTPD handling of all content files, you must turn on the httpd_unified boolean. Disabled by default.

       setsebool -P httpd_unified 1



       If you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled  by
       default.

       setsebool -P kerberos_enabled 1



       If you want to allow logging in and using the system from /dev/console, you must turn on the login_console_enabled boolean.
       Enabled by default.

       setsebool -P login_console_enabled 1



       If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.

       setsebool -P nis_enabled 1



       If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm  boolean.  Disabled
       by default.

       setsebool -P nscd_use_shm 1



       If  you want to disallow programs, such as newrole, from transitioning to administrative user domains, you must turn on the
       secure_mode boolean. Enabled by default.

       setsebool -P secure_mode 1



       If you want to allow unconfined executables to make their stack executable.  This should never, ever be necessary. Probably
       indicates  a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla, you must
       turn on the selinuxuser_execstack boolean. Enabled by default.

       setsebool -P selinuxuser_execstack 1



       If you want to allow user  to use ssh chroot environment, you must turn on the selinuxuser_use_ssh_chroot boolean. Disabled
       by default.

       setsebool -P selinuxuser_use_ssh_chroot 1



       If you want to allow ssh logins as sysadm_r:sysadm_t, you must turn on the ssh_sysadm_login boolean. Disabled by default.

       setsebool -P ssh_sysadm_login 1



       If you want to support NFS home directories, you must turn on the use_nfs_home_dirs boolean. Disabled by default.

       setsebool -P use_nfs_home_dirs 1



       If you want to support SAMBA home directories, you must turn on the use_samba_home_dirs boolean. Disabled by default.

       setsebool -P use_samba_home_dirs 1



       If  you  want  to  allow  the  graphical  login  program  to  login  directly  as  sysadm_r:sysadm_t,  you must turn on the
       xdm_sysadm_login boolean. Enabled by default.

       setsebool -P xdm_sysadm_login 1



HOME_EXEC
       The SELinux user guest_u is able execute home content files.


TRANSITIONS
       Three things can happen when guest_t attempts to execute a program.

       1. SELinux Policy can deny guest_t from executing the program.



       2. SELinux Policy can allow guest_t to execute the program in the current user type.

              Execute the following to see the types that the SELinux user guest_t can execute without transitioning:

              search -A -s guest_t -c file -p execute_no_trans



       3. SELinux can allow guest_t to execute the program and transition to a new type.

              Execute the following to see the types that the SELinux user guest_t can execute and transition:

              $ search -A -s guest_t -c process -p transition



MANAGED FILES
       The SELinux process type guest_t can manage files labeled with the following file types.  The paths listed are the  default
       paths for these file types.  Note the processes UID still need to have DAC permissions.

       anon_inodefs_t


       auth_cache_t

            /var/cache/coolkey(/.*)?

       cifs_t


       httpd_user_content_t

            /home/[^/]*/((www)|(web)|(public_html))(/.+)?

       httpd_user_htaccess_t

            /home/[^/]*/((www)|(web)|(public_html))(/.*)?/.htaccess

       httpd_user_ra_content_t

            /home/[^/]*/((www)|(web)|(public_html))(/.*)?/logs(/.*)?

       httpd_user_rw_content_t


       httpd_user_script_exec_t

            /home/[^/]*/((www)|(web)|(public_html))/cgi-bin(/.+)?

       nfs_t


       user_home_type

            all user home files

       user_tmp_type

            all user tmp files

       user_tmpfs_type

            all user content in tmpfs file systems


COMMANDS
       semanage fcontext can also be used to manipulate default file context mappings.

       semanage permissive can also be used to manipulate whether or not a process type is permissive.

       semanage module can also be used to enable/disable/install/remove policy modules.

       semanage boolean can also be used to manipulate the booleans


       system-config-selinux is a GUI tool available to customize SELinux policy settings.


AUTHOR
       This manual page was auto-generated using sepolicy manpage .


SEE ALSO
       selinux(8), guest(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8)



mgrepl@redhat.com                                              guest                                              guest_selinux(8)
staff_selinux(8)                                staff SELinux Policy documentation                                staff_selinux(8)



NAME
       staff_u - Administrator's unprivileged user - Security Enhanced Linux Policy


DESCRIPTION
       staff_u  is an SELinux User defined in the SELinux policy. SELinux users have default roles, staff_r.  The default role has
       a default type, staff_t, associated with it.

       The SELinux user will usually login to a system with a context that looks like:

       staff_u:staff_r:staff_t:s0 - s0:c0.c1023

       Linux users are automatically assigned an SELinux users at login.  Login programs use the SELinux User  to  assign  initial
       context to the user's shell.

       SELinux policy uses the context to control the user's access.

       By default all users are assigned to the SELinux user via the __default__ flag

       On Targeted policy systems the __default__ user is assigned to the unconfined_u SELinux user.

       You can list all Linux User to SELinux user mapping using:

       semanage login -l

       If you wanted to change the default user mapping to use the staff_u user, you would execute:

       semanage login -m -s staff_u __default__


       If you want to map the one Linux user (joe) to the SELinux user staff, you would execute:

       $ semanage login -a -s staff_u joe



USER DESCRIPTION
       The SELinux user staff_u is defined in policy as a unprivileged user. SELinux prevents unprivileged users from doing admin‐
       istration tasks without transitioning to a different role.


SUDO
       The SELinux user staff can execute sudo.

       You can set up sudo to allow staff to transition to an administrative domain:

       Add one or more of the following record to sudoers using visudo.


       USERNAME ALL=(ALL) ROLE=auditadm_r TYPE=auditadm_t COMMAND
       sudo will run COMMAND as staff_u:auditadm_r:auditadm_t:LEVEL

       You might also need to add one or more of these new roles to your SELinux user record.

       List the SELinux roles your SELinux user can reach by executing:

       $ semanage user -l |grep selinux_name

       Modify the roles list and add staff_r to this list.

       $ semanage user -m -R 'staff_r auditadm_r dbadm_r logadm_r secadm_r sysadm_r unconfined_r webadm_r' staff_u

       For more details you can see semanage man page.


       USERNAME ALL=(ALL) ROLE=dbadm_r TYPE=dbadm_t COMMAND
       sudo will run COMMAND as staff_u:dbadm_r:dbadm_t:LEVEL

       You might also need to add one or more of these new roles to your SELinux user record.

       List the SELinux roles your SELinux user can reach by executing:

       $ semanage user -l |grep selinux_name

       Modify the roles list and add staff_r to this list.

       $ semanage user -m -R 'staff_r auditadm_r dbadm_r logadm_r secadm_r sysadm_r unconfined_r webadm_r' staff_u

       For more details you can see semanage man page.


       USERNAME ALL=(ALL) ROLE=logadm_r TYPE=logadm_t COMMAND
       sudo will run COMMAND as staff_u:logadm_r:logadm_t:LEVEL

       You might also need to add one or more of these new roles to your SELinux user record.

       List the SELinux roles your SELinux user can reach by executing:

       $ semanage user -l |grep selinux_name

       Modify the roles list and add staff_r to this list.

       $ semanage user -m -R 'staff_r auditadm_r dbadm_r logadm_r secadm_r sysadm_r unconfined_r webadm_r' staff_u

       For more details you can see semanage man page.


       USERNAME ALL=(ALL) ROLE=secadm_r TYPE=secadm_t COMMAND
       sudo will run COMMAND as staff_u:secadm_r:secadm_t:LEVEL

       You might also need to add one or more of these new roles to your SELinux user record.

       List the SELinux roles your SELinux user can reach by executing:

       $ semanage user -l |grep selinux_name

       Modify the roles list and add staff_r to this list.

       $ semanage user -m -R 'staff_r auditadm_r dbadm_r logadm_r secadm_r sysadm_r unconfined_r webadm_r' staff_u

       For more details you can see semanage man page.


       USERNAME ALL=(ALL) ROLE=sysadm_r TYPE=sysadm_t COMMAND
       sudo will run COMMAND as staff_u:sysadm_r:sysadm_t:LEVEL

       You might also need to add one or more of these new roles to your SELinux user record.

       List the SELinux roles your SELinux user can reach by executing:

       $ semanage user -l |grep selinux_name

       Modify the roles list and add staff_r to this list.

       $ semanage user -m -R 'staff_r auditadm_r dbadm_r logadm_r secadm_r sysadm_r unconfined_r webadm_r' staff_u

       For more details you can see semanage man page.


       USERNAME ALL=(ALL) ROLE=unconfined_r TYPE=unconfined_t COMMAND
       sudo will run COMMAND as staff_u:unconfined_r:unconfined_t:LEVEL

       You might also need to add one or more of these new roles to your SELinux user record.

       List the SELinux roles your SELinux user can reach by executing:

       $ semanage user -l |grep selinux_name

       Modify the roles list and add staff_r to this list.

       $ semanage user -m -R 'staff_r auditadm_r dbadm_r logadm_r secadm_r sysadm_r unconfined_r webadm_r' staff_u

       For more details you can see semanage man page.


       USERNAME ALL=(ALL) ROLE=webadm_r TYPE=webadm_t COMMAND
       sudo will run COMMAND as staff_u:webadm_r:webadm_t:LEVEL

       You might also need to add one or more of these new roles to your SELinux user record.

       List the SELinux roles your SELinux user can reach by executing:

       $ semanage user -l |grep selinux_name

       Modify the roles list and add staff_r to this list.

       $ semanage user -m -R 'staff_r auditadm_r dbadm_r logadm_r secadm_r sysadm_r unconfined_r webadm_r' staff_u

       For more details you can see semanage man page.


       The SELinux type staff_t is not allowed to execute sudo.


X WINDOWS LOGIN
       The SELinux user staff_u is able to X Windows login.


NETWORK
       The SELinux user staff_u is able to listen on the following tcp ports.

              6000-6020


       The SELinux user staff_u is able to connect to the following tcp ports.

              all ports


       The SELinux user staff_u is able to listen on the following udp ports.

              all ports with out defined types

              32768-61000


       The SELinux user staff_u is able to connect to the following tcp ports.

              all ports


BOOLEANS
       SELinux policy is customizable based on least access required.  staff policy is extremely flexible and has several booleans
       that allow you to manipulate the policy and run staff with the tightest access possible.



       If  you  want  to allow staff user to create and transition to svirt domains, you must turn on the staff_use_svirt boolean.
       Disabled by default.

       setsebool -P staff_use_svirt 1



       If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn
       on the authlogin_nsswitch_use_ldap boolean. Disabled by default.

       setsebool -P authlogin_nsswitch_use_ldap 1



       If you want to deny user domains applications to map a memory region as both executable and writable, this is dangerous and
       the executable should be reported in bugzilla, you must turn on the deny_execmem boolean. Enabled by default.

       setsebool -P deny_execmem 1



       If you want to deny any process from ptracing or debugging any other processes, you must turn on the  deny_ptrace  boolean.
       Enabled by default.

       setsebool -P deny_ptrace 1



       If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled
       by default.

       setsebool -P domain_fd_use 1



       If you want to allow all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules  boolean.
       Disabled by default.

       setsebool -P domain_kernel_load_modules 1



       If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

       setsebool -P fips_mode 1



       If  you want to determine whether calling user domains can execute Git daemon in the git_session_t domain, you must turn on
       the git_session_users boolean. Disabled by default.

       setsebool -P git_session_users 1



       If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.

       setsebool -P global_ssp 1



       If you want to allow httpd cgi support, you must turn on the httpd_enable_cgi boolean. Disabled by default.

       setsebool -P httpd_enable_cgi 1



       If you want to unify HTTPD handling of all content files, you must turn on the httpd_unified boolean. Disabled by default.

       setsebool -P httpd_unified 1



       If you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled  by
       default.

       setsebool -P kerberos_enabled 1



       If you want to allow logging in and using the system from /dev/console, you must turn on the login_console_enabled boolean.
       Enabled by default.

       setsebool -P login_console_enabled 1



       If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.

       setsebool -P nis_enabled 1



       If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm  boolean.  Disabled
       by default.

       setsebool -P nscd_use_shm 1



       If  you  want  to determine whether calling user domains can execute Polipo daemon in the polipo_session_t domain, you must
       turn on the polipo_session_users boolean. Disabled by default.

       setsebool -P polipo_session_users 1



       If you want to allow unprivileged users to execute DDL statement, you must turn on the  postgresql_selinux_users_ddl  bool‐
       ean. Enabled by default.

       setsebool -P postgresql_selinux_users_ddl 1



       If you want to allow pppd to be run for a regular user, you must turn on the pppd_for_user boolean. Disabled by default.

       setsebool -P pppd_for_user 1



       If  you want to disallow programs, such as newrole, from transitioning to administrative user domains, you must turn on the
       secure_mode boolean. Enabled by default.

       setsebool -P secure_mode 1



       If you want to allow regular users direct dri device access, you must turn on the  selinuxuser_direct_dri_enabled  boolean.
       Enabled by default.

       setsebool -P selinuxuser_direct_dri_enabled 1



       If  you  want  to  allow  all  unconfined  executables to use libraries requiring text relocation that are not labeled tex‐
       trel_shlib_t, you must turn on the selinuxuser_execmod boolean. Enabled by default.

       setsebool -P selinuxuser_execmod 1



       If you want to allow unconfined executables to make their stack executable.  This should never, ever be necessary. Probably
       indicates  a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla, you must
       turn on the selinuxuser_execstack boolean. Enabled by default.

       setsebool -P selinuxuser_execstack 1



       If you want to allow users to connect to the local mysql server, you must  turn  on  the  selinuxuser_mysql_connect_enabled
       boolean. Disabled by default.

       setsebool -P selinuxuser_mysql_connect_enabled 1



       If  you  want to allow users to connect to PostgreSQL, you must turn on the selinuxuser_postgresql_connect_enabled boolean.
       Disabled by default.

       setsebool -P selinuxuser_postgresql_connect_enabled 1



       If you want to allow user to r/w files on filesystems that do not have extended attributes (FAT, CDROM, FLOPPY),  you  must
       turn on the selinuxuser_rw_noexattrfile boolean. Enabled by default.

       setsebool -P selinuxuser_rw_noexattrfile 1



       If you want to allow user music sharing, you must turn on the selinuxuser_share_music boolean. Disabled by default.

       setsebool -P selinuxuser_share_music 1



       If  you want to allow users to run TCP servers (bind to ports and accept connection from the same domain and outside users)
       disabling this forces FTP passive mode and may change other protocols, you must turn on the selinuxuser_tcp_server boolean.
       Disabled by default.

       setsebool -P selinuxuser_tcp_server 1



       If you want to allow user  to use ssh chroot environment, you must turn on the selinuxuser_use_ssh_chroot boolean. Disabled
       by default.

       setsebool -P selinuxuser_use_ssh_chroot 1



       If you want to allow ssh logins as sysadm_r:sysadm_t, you must turn on the ssh_sysadm_login boolean. Disabled by default.

       setsebool -P ssh_sysadm_login 1



       If you want to support NFS home directories, you must turn on the use_nfs_home_dirs boolean. Disabled by default.

       setsebool -P use_nfs_home_dirs 1



       If you want to support SAMBA home directories, you must turn on the use_samba_home_dirs boolean. Disabled by default.

       setsebool -P use_samba_home_dirs 1



       If you want to allow  the  graphical  login  program  to  login  directly  as  sysadm_r:sysadm_t,  you  must  turn  on  the
       xdm_sysadm_login boolean. Enabled by default.

       setsebool -P xdm_sysadm_login 1



       If   you   want   to   allows   clients  to  write  to  the  X  server  shared  memory  segments,  you  must  turn  on  the
       xserver_clients_write_xshm boolean. Disabled by default.

       setsebool -P xserver_clients_write_xshm 1



       If you want to support X userspace object manager, you must turn on the xserver_object_manager boolean. Enabled by default.

       setsebool -P xserver_object_manager 1



HOME_EXEC
       The SELinux user staff_u is able execute home content files.


TRANSITIONS
       Three things can happen when staff_t attempts to execute a program.

       1. SELinux Policy can deny staff_t from executing the program.



       2. SELinux Policy can allow staff_t to execute the program in the current user type.

              Execute the following to see the types that the SELinux user staff_t can execute without transitioning:

              search -A -s staff_t -c file -p execute_no_trans



       3. SELinux can allow staff_t to execute the program and transition to a new type.

              Execute the following to see the types that the SELinux user staff_t can execute and transition:

              $ search -A -s staff_t -c process -p transition



MANAGED FILES
       The SELinux process type staff_t can manage files labeled with the following file types.  The paths listed are the  default
       paths for these file types.  Note the processes UID still need to have DAC permissions.

       anon_inodefs_t


       auth_cache_t

            /var/cache/coolkey(/.*)?

       bluetooth_helper_tmp_t


       bluetooth_helper_tmpfs_t


       cgroup_t

            /cgroup
            /sys/fs/cgroup

       chrome_sandbox_tmpfs_t


       cifs_t


       games_data_t

            /var/games(/.*)?
            /var/lib/games(/.*)?

       git_user_content_t

            /home/[^/]*/public_git(/.*)?

       gpg_agent_tmp_t

            /home/[^/]*/.gnupg/log-socket

       httpd_user_content_t

            /home/[^/]*/((www)|(web)|(public_html))(/.+)?

       httpd_user_htaccess_t

            /home/[^/]*/((www)|(web)|(public_html))(/.*)?/.htaccess

       httpd_user_ra_content_t

            /home/[^/]*/((www)|(web)|(public_html))(/.*)?/logs(/.*)?

       httpd_user_rw_content_t


       httpd_user_script_exec_t

            /home/[^/]*/((www)|(web)|(public_html))/cgi-bin(/.+)?

       iceauth_home_t

            /root/.DCOP.*
            /root/.ICEauthority.*
            /home/[^/]*/.DCOP.*
            /home/[^/]*/.ICEauthority.*

       irc_home_t

            /home/[^/]*/.irssi(/.*)?
            /home/[^/]*/.ircmotd

       mail_spool_t

            /var/mail(/.*)?
            /var/spool/imap(/.*)?
            /var/spool/mail(/.*)?

       mqueue_spool_t

            /var/spool/(client)?mqueue(/.*)?
            /var/spool/mqueue.in(/.*)?

       nfsd_rw_t


       noxattrfs

            all files on file systems which do not support extended attributes

       sandbox_file_t


       sandbox_tmpfs_type

            all sandbox content in tmpfs file systems

       screen_home_t

            /root/.screen(/.*)?
            /home/[^/]*/.screen(/.*)?
            /home/[^/]*/.screenrc

       security_t

            /selinux

       systemd_passwd_var_run_t

            /var/run/systemd/ask-password(/.*)?
            /var/run/systemd/ask-password-block(/.*)?

       usbfs_t


       user_fonts_cache_t

            /root/.fontconfig(/.*)?
            /root/.fonts/auto(/.*)?
            /root/.fonts.cache-.*
            /home/[^/]*/.fontconfig(/.*)?
            /home/[^/]*/.fonts/auto(/.*)?
            /home/[^/]*/.fonts.cache-.*

       user_fonts_t

            /root/.fonts(/.*)?
            /tmp/.font-unix(/.*)?
            /home/[^/]*/.fonts(/.*)?

       user_home_type

            all user home files

       user_tmp_type

            all user tmp files

       user_tmpfs_type

            all user content in tmpfs file systems

       virt_image_type

            all virtual image files

       xauth_home_t

            /root/.xauth.*
            /root/.Xauth.*
            /root/.serverauth.*
            /root/.Xauthority.*
            /var/lib/pqsql/.xauth.*
            /var/lib/pqsql/.Xauthority.*
            /var/lib/nxserver/home/.xauth.*
            /var/lib/nxserver/home/.Xauthority.*
            /home/[^/]*/.xauth.*
            /home/[^/]*/.Xauth.*
            /home/[^/]*/.serverauth.*
            /home/[^/]*/.Xauthority.*

       xdm_tmp_t

            /tmp/.X11-unix(/.*)?
            /tmp/.ICE-unix(/.*)?
            /tmp/.X0-lock

       xserver_tmpfs_t



COMMANDS
       semanage fcontext can also be used to manipulate default file context mappings.

       semanage permissive can also be used to manipulate whether or not a process type is permissive.

       semanage module can also be used to enable/disable/install/remove policy modules.

       semanage boolean can also be used to manipulate the booleans


       system-config-selinux is a GUI tool available to customize SELinux policy settings.


AUTHOR
       This manual page was auto-generated using sepolicy manpage .


SEE ALSO
       selinux(8),  staff(8),  semanage(8),  restorecon(8),  chcon(1), sepolicy(8) , setsebool(8), staff_consolehelper_selinux(8),
       staff_consolehelper_selinux(8),      staff_dbusd_selinux(8),      staff_dbusd_selinux(8),       staff_gkeyringd_selinux(8),
       staff_gkeyringd_selinux(8),   staff_screen_selinux(8),   staff_screen_selinux(8),  staff_seunshare_selinux(8),  staff_seun‐
       share_selinux(8),  staff_ssh_agent_selinux(8),  staff_ssh_agent_selinux(8),  staff_sudo_selinux(8),  staff_sudo_selinux(8),
       staff_wine_selinux(8), staff_wine_selinux(8)



mgrepl@redhat.com                                              staff                                              staff_selinux(8)
sysadm_selinux(8)                               sysadm SELinux Policy documentation                              sysadm_selinux(8)



NAME
       sysadm_u - General system administration role - Security Enhanced Linux Policy


DESCRIPTION
       sysadm_u  is  an  SELinux User defined in the SELinux policy. SELinux users have default roles, sysadm_r.  The default role
       has a default type, sysadm_t, associated with it.

       The SELinux user will usually login to a system with a context that looks like:

       sysadm_u:sysadm_r:sysadm_t:s0 - s0:c0.c1023

       Linux users are automatically assigned an SELinux users at login.  Login programs use the SELinux User  to  assign  initial
       context to the user's shell.

       SELinux policy uses the context to control the user's access.

       By default all users are assigned to the SELinux user via the __default__ flag

       On Targeted policy systems the __default__ user is assigned to the unconfined_u SELinux user.

       You can list all Linux User to SELinux user mapping using:

       semanage login -l

       If you wanted to change the default user mapping to use the sysadm_u user, you would execute:

       semanage login -m -s sysadm_u __default__


       If you want to map the one Linux user (joe) to the SELinux user sysadm, you would execute:

       $ semanage login -a -s sysadm_u joe



USER DESCRIPTION
       The SELinux user sysadm_u is an admin user. It means that a mapped Linux user to this SELinux user is intended for adminis‐
       trative actions. Usually this is assigned to a root Linux user.


SUDO
       The SELinux user sysadm can execute sudo.

       You can set up sudo to allow sysadm to transition to an administrative domain:

       Add one or more of the following record to sudoers using visudo.


       USERNAME ALL=(ALL) ROLE=auditadm_r TYPE=auditadm_t COMMAND
       sudo will run COMMAND as sysadm_u:auditadm_r:auditadm_t:LEVEL

       You might also need to add one or more of these new roles to your SELinux user record.

       List the SELinux roles your SELinux user can reach by executing:

       $ semanage user -l |grep selinux_name

       Modify the roles list and add sysadm_r to this list.

       $ semanage user -m -R 'sysadm_r auditadm_r secadm_r staff_r user_r' sysadm_u

       For more details you can see semanage man page.


       USERNAME ALL=(ALL) ROLE=secadm_r TYPE=secadm_t COMMAND
       sudo will run COMMAND as sysadm_u:secadm_r:secadm_t:LEVEL

       You might also need to add one or more of these new roles to your SELinux user record.

       List the SELinux roles your SELinux user can reach by executing:

       $ semanage user -l |grep selinux_name

       Modify the roles list and add sysadm_r to this list.

       $ semanage user -m -R 'sysadm_r auditadm_r secadm_r staff_r user_r' sysadm_u

       For more details you can see semanage man page.


       USERNAME ALL=(ALL) ROLE=staff_r TYPE=staff_t COMMAND
       sudo will run COMMAND as sysadm_u:staff_r:staff_t:LEVEL

       You might also need to add one or more of these new roles to your SELinux user record.

       List the SELinux roles your SELinux user can reach by executing:

       $ semanage user -l |grep selinux_name

       Modify the roles list and add sysadm_r to this list.

       $ semanage user -m -R 'sysadm_r auditadm_r secadm_r staff_r user_r' sysadm_u

       For more details you can see semanage man page.


       USERNAME ALL=(ALL) ROLE=user_r TYPE=user_t COMMAND
       sudo will run COMMAND as sysadm_u:user_r:user_t:LEVEL

       You might also need to add one or more of these new roles to your SELinux user record.

       List the SELinux roles your SELinux user can reach by executing:

       $ semanage user -l |grep selinux_name

       Modify the roles list and add sysadm_r to this list.

       $ semanage user -m -R 'sysadm_r auditadm_r secadm_r staff_r user_r' sysadm_u

       For more details you can see semanage man page.


       The SELinux type sysadm_t is not allowed to execute sudo.


X WINDOWS LOGIN
       The SELinux user sysadm_u is able to X Windows login.


NETWORK
       The SELinux user sysadm_u is able to listen on the following tcp ports.

              32768-61000

              all ports with out defined types


       The SELinux user sysadm_u is able to connect to the following tcp ports.

              all ports


       The SELinux user sysadm_u is able to listen on the following udp ports.

              all ports with out defined types

              32768-61000

              123


       The SELinux user sysadm_u is able to connect to the following tcp ports.

              all ports


BOOLEANS
       SELinux policy is customizable based on least access required.  sysadm policy is extremely flexible and has  several  bool‐
       eans that allow you to manipulate the policy and run sysadm with the tightest access possible.



       If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn
       on the authlogin_nsswitch_use_ldap boolean. Disabled by default.

       setsebool -P authlogin_nsswitch_use_ldap 1



       If you want to deny user domains applications to map a memory region as both executable and writable, this is dangerous and
       the executable should be reported in bugzilla, you must turn on the deny_execmem boolean. Enabled by default.

       setsebool -P deny_execmem 1



       If  you  want to deny any process from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean.
       Enabled by default.

       setsebool -P deny_ptrace 1



       If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled
       by default.

       setsebool -P domain_fd_use 1



       If  you want to allow all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules boolean.
       Disabled by default.

       setsebool -P domain_kernel_load_modules 1



       If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

       setsebool -P fips_mode 1



       If you want to determine whether calling user domains can execute Git daemon in the git_session_t domain, you must turn  on
       the git_session_users boolean. Disabled by default.

       setsebool -P git_session_users 1



       If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.

       setsebool -P global_ssp 1



       If  you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by
       default.

       setsebool -P kerberos_enabled 1



       If you want to allow logging in and using the system from /dev/console, you must turn on the login_console_enabled boolean.
       Enabled by default.

       setsebool -P login_console_enabled 1



       If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.

       setsebool -P nis_enabled 1



       If  you  want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Disabled
       by default.

       setsebool -P nscd_use_shm 1



       If you want to determine whether calling user domains can execute Polipo daemon in the polipo_session_t  domain,  you  must
       turn on the polipo_session_users boolean. Disabled by default.

       setsebool -P polipo_session_users 1



       If  you  want  to  allow database admins to execute DML statement, you must turn on the postgresql_selinux_unconfined_dbadm
       boolean. Enabled by default.

       setsebool -P postgresql_selinux_unconfined_dbadm 1



       If you want to disallow programs, such as newrole, from transitioning to administrative user domains, you must turn on  the
       secure_mode boolean. Enabled by default.

       setsebool -P secure_mode 1



       If you want to boolean to determine whether the system permits loading policy, setting enforcing mode, and changing boolean
       values.  Set this to true and you have to reboot to set it back, you  must  turn  on  the  secure_mode_policyload  boolean.
       Enabled by default.

       setsebool -P secure_mode_policyload 1



       If  you  want to allow regular users direct dri device access, you must turn on the selinuxuser_direct_dri_enabled boolean.
       Enabled by default.

       setsebool -P selinuxuser_direct_dri_enabled 1



       If you want to allow unconfined executables to make their stack executable.  This should never, ever be necessary. Probably
       indicates  a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla, you must
       turn on the selinuxuser_execstack boolean. Enabled by default.

       setsebool -P selinuxuser_execstack 1



       If you want to allow users to connect to the local mysql server, you must  turn  on  the  selinuxuser_mysql_connect_enabled
       boolean. Disabled by default.

       setsebool -P selinuxuser_mysql_connect_enabled 1



       If  you  want to allow users to connect to PostgreSQL, you must turn on the selinuxuser_postgresql_connect_enabled boolean.
       Disabled by default.

       setsebool -P selinuxuser_postgresql_connect_enabled 1



       If you want to allow user to r/w files on filesystems that do not have extended attributes (FAT, CDROM, FLOPPY),  you  must
       turn on the selinuxuser_rw_noexattrfile boolean. Disabled by default.

       setsebool -P selinuxuser_rw_noexattrfile 1



       If  you want to allow users to run TCP servers (bind to ports and accept connection from the same domain and outside users)
       disabling this forces FTP passive mode and may change other protocols, you must turn on the selinuxuser_tcp_server boolean.
       Disabled by default.

       setsebool -P selinuxuser_tcp_server 1



       If you want to allow user  to use ssh chroot environment, you must turn on the selinuxuser_use_ssh_chroot boolean. Disabled
       by default.

       setsebool -P selinuxuser_use_ssh_chroot 1



       If you want to allow ssh logins as sysadm_r:sysadm_t, you must turn on the ssh_sysadm_login boolean. Disabled by default.

       setsebool -P ssh_sysadm_login 1



       If you want to support NFS home directories, you must turn on the use_nfs_home_dirs boolean. Disabled by default.

       setsebool -P use_nfs_home_dirs 1



       If you want to support SAMBA home directories, you must turn on the use_samba_home_dirs boolean. Disabled by default.

       setsebool -P use_samba_home_dirs 1



       If you want to allow  the  graphical  login  program  to  login  directly  as  sysadm_r:sysadm_t,  you  must  turn  on  the
       xdm_sysadm_login boolean. Disabled by default.

       setsebool -P xdm_sysadm_login 1



       If   you   want   to   allows   clients  to  write  to  the  X  server  shared  memory  segments,  you  must  turn  on  the
       xserver_clients_write_xshm boolean. Disabled by default.

       setsebool -P xserver_clients_write_xshm 1



       If you want to support X userspace object manager, you must turn on the xserver_object_manager boolean. Enabled by default.

       setsebool -P xserver_object_manager 1



HOME_EXEC
       The SELinux user sysadm_u is able execute home content files.


TRANSITIONS
       Three things can happen when sysadm_t attempts to execute a program.

       1. SELinux Policy can deny sysadm_t from executing the program.



       2. SELinux Policy can allow sysadm_t to execute the program in the current user type.

              Execute the following to see the types that the SELinux user sysadm_t can execute without transitioning:

              search -A -s sysadm_t -c file -p execute_no_trans



       3. SELinux can allow sysadm_t to execute the program and transition to a new type.

              Execute the following to see the types that the SELinux user sysadm_t can execute and transition:

              $ search -A -s sysadm_t -c process -p transition



MANAGED FILES
       The SELinux process type sysadm_t can manage files labeled with the following file types.  The paths listed are the default
       paths for these file types.  Note the processes UID still need to have DAC permissions.

       auditd_etc_t

            /etc/audit(/.*)?

       auditd_log_t

            /var/log/audit(/.*)?
            /var/log/audit.log

       boolean_type


       cifs_t


       default_context_t

            /etc/selinux/([^/]*/)?contexts(/.*)?
            /root/.default_contexts

       etc_runtime_t

            /[^/]+
            /etc/mtab.*
            /etc/blkid(/.*)?
            /etc/nologin.*
            /etc/.fstab.hal..+
            /halt
            /fastboot
            /poweroff
            /etc/cmtab
            /forcefsck
            /.autofsck
            /.suspended
            /fsckoptions
            /.autorelabel
            /etc/securetty
            /etc/nohotplug
            /etc/killpower
            /etc/ioctl.save
            /etc/fstab.REVOKE
            /etc/network/ifstate
            /etc/sysconfig/hwconf
            /etc/ptal/ptal-printd-like
            /etc/sysconfig/iptables.save
            /etc/xorg.conf.d/00-system-setup-keyboard.conf
            /etc/X11/xorg.conf.d/00-system-setup-keyboard.conf

       file_context_t

            /etc/selinux/([^/]*/)?contexts/files(/.*)?

       git_user_content_t

            /home/[^/]*/public_git(/.*)?

       iceauth_home_t

            /root/.DCOP.*
            /root/.ICEauthority.*
            /home/[^/]*/.DCOP.*
            /home/[^/]*/.ICEauthority.*

       irc_home_t

            /home/[^/]*/.irssi(/.*)?
            /home/[^/]*/.ircmotd

       krb5_host_rcache_t

            /var/cache/krb5rcache(/.*)?
            /var/tmp/nfs_0
            /var/tmp/DNS_25
            /var/tmp/host_0
            /var/tmp/imap_0
            /var/tmp/HTTP_23
            /var/tmp/HTTP_48
            /var/tmp/ldap_55
            /var/tmp/ldap_487
            /var/tmp/ldapmap1_0

       krb5_keytab_t

            /etc/krb5.keytab
            /etc/krb5kdc/kadm5.keytab
            /var/kerberos/krb5kdc/kadm5.keytab

       non_security_file_type


       noxattrfs

            all files on file systems which do not support extended attributes

       postfix_spool_type


       screen_home_t

            /root/.screen(/.*)?
            /home/[^/]*/.screen(/.*)?
            /home/[^/]*/.screenrc

       selinux_config_t

            /etc/selinux(/.*)?
            /etc/selinux/([^/]*/)?seusers
            /etc/selinux/([^/]*/)?users(/.*)?
            /etc/selinux/([^/]*/)?setrans.conf
            /var/lib/sepolgen(/.*)?

       selinux_login_config_t

            /etc/selinux/([^/]*/)?logins(/.*)?

       semanage_store_t

            /etc/selinux/([^/]*/)?policy(/.*)?
            /etc/selinux/([^/]*/)?modules/(active|tmp|previous)(/.*)?
            /etc/share/selinux/mls(/.*)?
            /etc/share/selinux/targeted(/.*)?

       sysctl_type


       systemd_passwd_var_run_t

            /var/run/systemd/ask-password(/.*)?
            /var/run/systemd/ask-password-block(/.*)?

       systemd_unit_file_type


       usbfs_t


       user_fonts_cache_t

            /root/.fontconfig(/.*)?
            /root/.fonts/auto(/.*)?
            /root/.fonts.cache-.*
            /home/[^/]*/.fontconfig(/.*)?
            /home/[^/]*/.fonts/auto(/.*)?
            /home/[^/]*/.fonts.cache-.*

       user_fonts_t

            /root/.fonts(/.*)?
            /tmp/.font-unix(/.*)?
            /home/[^/]*/.fonts(/.*)?

       user_home_t

            /home/[^/]*/.+

       user_home_type

            all user home files

       user_tmp_type

            all user tmp files

       user_tmpfs_type

            all user content in tmpfs file systems

       vmware_conf_t

            /home/[^/]*/.vmware[^/]*/.*.cfg

       vmware_tmp_t


       vmware_tmpfs_t


       xauth_home_t

            /root/.xauth.*
            /root/.Xauth.*
            /root/.serverauth.*
            /root/.Xauthority.*
            /var/lib/pqsql/.xauth.*
            /var/lib/pqsql/.Xauthority.*
            /var/lib/nxserver/home/.xauth.*
            /var/lib/nxserver/home/.Xauthority.*
            /home/[^/]*/.xauth.*
            /home/[^/]*/.Xauth.*
            /home/[^/]*/.serverauth.*
            /home/[^/]*/.Xauthority.*

       xserver_tmpfs_t



COMMANDS
       semanage fcontext can also be used to manipulate default file context mappings.

       semanage permissive can also be used to manipulate whether or not a process type is permissive.

       semanage module can also be used to enable/disable/install/remove policy modules.

       semanage boolean can also be used to manipulate the booleans


       system-config-selinux is a GUI tool available to customize SELinux policy settings.


AUTHOR
       This manual page was auto-generated using sepolicy manpage .


SEE ALSO
       selinux(8),   sysadm(8),   semanage(8),  restorecon(8),  chcon(1),  sepolicy(8)  ,  setsebool(8),  sysadm_dbusd_selinux(8),
       sysadm_dbusd_selinux(8),        sysadm_passwd_selinux(8),        sysadm_passwd_selinux(8),        sysadm_screen_selinux(8),
       sysadm_screen_selinux(8),     sysadm_seunshare_selinux(8),     sysadm_seunshare_selinux(8),    sysadm_ssh_agent_selinux(8),
       sysadm_ssh_agent_selinux(8), sysadm_su_selinux(8), sysadm_su_selinux(8), sysadm_sudo_selinux(8), sysadm_sudo_selinux(8)



mgrepl@redhat.com                                             sysadm                                             sysadm_selinux(8)
user_selinux(8)                                  user SELinux Policy documentation                                 user_selinux(8)



NAME
       user_u - Generic unprivileged user - Security Enhanced Linux Policy


DESCRIPTION
       user_u  is an SELinux User defined in the SELinux policy. SELinux users have default roles, user_r.  The default role has a
       default type, user_t, associated with it.

       The SELinux user will usually login to a system with a context that looks like:

       user_u:user_r:user_t:s0

       Linux users are automatically assigned an SELinux users at login.  Login programs use the SELinux User  to  assign  initial
       context to the user's shell.

       SELinux policy uses the context to control the user's access.

       By default all users are assigned to the SELinux user via the __default__ flag

       On Targeted policy systems the __default__ user is assigned to the unconfined_u SELinux user.

       You can list all Linux User to SELinux user mapping using:

       semanage login -l

       If you wanted to change the default user mapping to use the user_u user, you would execute:

       semanage login -m -s user_u __default__


       If you want to map the one Linux user (joe) to the SELinux user user, you would execute:

       $ semanage login -a -s user_u joe



USER DESCRIPTION
       The  SELinux user user_u is defined in policy as a unprivileged user. SELinux prevents unprivileged users from doing admin‐
       istration tasks without transitioning to a different role.


SUDO
X WINDOWS LOGIN
       The SELinux user user_u is able to X Windows login.


NETWORK
       The SELinux user user_u is able to listen on the following tcp ports.

              6000-6020


       The SELinux user user_u is able to connect to the following tcp ports.

              all ports


       The SELinux user user_u is able to listen on the following udp ports.

              all ports with out defined types

              32768-61000


       The SELinux user user_u is able to connect to the following tcp ports.

              all ports


BOOLEANS
       SELinux policy is customizable based on least access required.  user policy is extremely flexible and has several  booleans
       that allow you to manipulate the policy and run user with the tightest access possible.



       If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn
       on the authlogin_nsswitch_use_ldap boolean. Disabled by default.

       setsebool -P authlogin_nsswitch_use_ldap 1



       If you want to deny user domains applications to map a memory region as both executable and writable, this is dangerous and
       the executable should be reported in bugzilla, you must turn on the deny_execmem boolean. Enabled by default.

       setsebool -P deny_execmem 1



       If  you  want to deny any process from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean.
       Enabled by default.

       setsebool -P deny_ptrace 1



       If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled
       by default.

       setsebool -P domain_fd_use 1



       If  you want to allow all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules boolean.
       Disabled by default.

       setsebool -P domain_kernel_load_modules 1



       If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

       setsebool -P fips_mode 1



       If you want to determine whether calling user domains can execute Git daemon in the git_session_t domain, you must turn  on
       the git_session_users boolean. Enabled by default.

       setsebool -P git_session_users 1



       If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.

       setsebool -P global_ssp 1



       If you want to allow httpd cgi support, you must turn on the httpd_enable_cgi boolean. Disabled by default.

       setsebool -P httpd_enable_cgi 1



       If you want to unify HTTPD handling of all content files, you must turn on the httpd_unified boolean. Disabled by default.

       setsebool -P httpd_unified 1



       If  you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by
       default.

       setsebool -P kerberos_enabled 1



       If you want to allow logging in and using the system from /dev/console, you must turn on the login_console_enabled boolean.
       Enabled by default.

       setsebool -P login_console_enabled 1



       If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.

       setsebool -P nis_enabled 1



       If  you  want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Disabled
       by default.

       setsebool -P nscd_use_shm 1



       If you want to determine whether calling user domains can execute Polipo daemon in the polipo_session_t  domain,  you  must
       turn on the polipo_session_users boolean. Disabled by default.

       setsebool -P polipo_session_users 1



       If you want to allow pppd to be run for a regular user, you must turn on the pppd_for_user boolean. Disabled by default.

       setsebool -P pppd_for_user 1



       If  you want to disallow programs, such as newrole, from transitioning to administrative user domains, you must turn on the
       secure_mode boolean. Enabled by default.

       setsebool -P secure_mode 1



       If you want to allow regular users direct dri device access, you must turn on the  selinuxuser_direct_dri_enabled  boolean.
       Enabled by default.

       setsebool -P selinuxuser_direct_dri_enabled 1



       If  you  want  to  allow  all  unconfined  executables to use libraries requiring text relocation that are not labeled tex‐
       trel_shlib_t, you must turn on the selinuxuser_execmod boolean. Enabled by default.

       setsebool -P selinuxuser_execmod 1



       If you want to allow unconfined executables to make their stack executable.  This should never, ever be necessary. Probably
       indicates  a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla, you must
       turn on the selinuxuser_execstack boolean. Enabled by default.

       setsebool -P selinuxuser_execstack 1



       If you want to allow users to connect to the local mysql server, you must  turn  on  the  selinuxuser_mysql_connect_enabled
       boolean. Disabled by default.

       setsebool -P selinuxuser_mysql_connect_enabled 1



       If  you  want  to allow confined users the ability to execute the ping and traceroute commands, you must turn on the selin‐
       uxuser_ping boolean. Enabled by default.

       setsebool -P selinuxuser_ping 1



       If you want to allow users to connect to PostgreSQL, you must turn on the  selinuxuser_postgresql_connect_enabled  boolean.
       Disabled by default.

       setsebool -P selinuxuser_postgresql_connect_enabled 1



       If  you  want to allow user to r/w files on filesystems that do not have extended attributes (FAT, CDROM, FLOPPY), you must
       turn on the selinuxuser_rw_noexattrfile boolean. Enabled by default.

       setsebool -P selinuxuser_rw_noexattrfile 1



       If you want to allow user music sharing, you must turn on the selinuxuser_share_music boolean. Disabled by default.

       setsebool -P selinuxuser_share_music 1



       If you want to allow users to run TCP servers (bind to ports and accept connection from the same domain and outside  users)
       disabling this forces FTP passive mode and may change other protocols, you must turn on the selinuxuser_tcp_server boolean.
       Disabled by default.

       setsebool -P selinuxuser_tcp_server 1



       If you want to allow user  to use ssh chroot environment, you must turn on the selinuxuser_use_ssh_chroot boolean. Disabled
       by default.

       setsebool -P selinuxuser_use_ssh_chroot 1



       If you want to allow ssh logins as sysadm_r:sysadm_t, you must turn on the ssh_sysadm_login boolean. Disabled by default.

       setsebool -P ssh_sysadm_login 1



       If you want to allow unprivledged user to create and transition to svirt domains, you must turn on the unprivuser_use_svirt
       boolean. Disabled by default.

       setsebool -P unprivuser_use_svirt 1



       If you want to support NFS home directories, you must turn on the use_nfs_home_dirs boolean. Disabled by default.

       setsebool -P use_nfs_home_dirs 1



       If you want to support SAMBA home directories, you must turn on the use_samba_home_dirs boolean. Disabled by default.

       setsebool -P use_samba_home_dirs 1



       If you want to allow  the  graphical  login  program  to  login  directly  as  sysadm_r:sysadm_t,  you  must  turn  on  the
       xdm_sysadm_login boolean. Enabled by default.

       setsebool -P xdm_sysadm_login 1



       If   you   want   to   allows   clients  to  write  to  the  X  server  shared  memory  segments,  you  must  turn  on  the
       xserver_clients_write_xshm boolean. Disabled by default.

       setsebool -P xserver_clients_write_xshm 1



       If you want to support X userspace object manager, you must turn on the xserver_object_manager boolean. Enabled by default.

       setsebool -P xserver_object_manager 1



HOME_EXEC
       The SELinux user user_u is able execute home content files.


TRANSITIONS
       Three things can happen when user_t attempts to execute a program.

       1. SELinux Policy can deny user_t from executing the program.



       2. SELinux Policy can allow user_t to execute the program in the current user type.

              Execute the following to see the types that the SELinux user user_t can execute without transitioning:

              search -A -s user_t -c file -p execute_no_trans



       3. SELinux can allow user_t to execute the program and transition to a new type.

              Execute the following to see the types that the SELinux user user_t can execute and transition:

              $ search -A -s user_t -c process -p transition



MANAGED FILES
       The SELinux process type user_t can manage files labeled with the following file types.  The paths listed are  the  default
       paths for these file types.  Note the processes UID still need to have DAC permissions.

       anon_inodefs_t


       auth_cache_t

            /var/cache/coolkey(/.*)?

       bluetooth_helper_tmp_t


       bluetooth_helper_tmpfs_t


       cgroup_t

            /cgroup
            /sys/fs/cgroup

       chrome_sandbox_tmpfs_t


       cifs_t


       games_data_t

            /var/games(/.*)?
            /var/lib/games(/.*)?

       git_user_content_t

            /home/[^/]*/public_git(/.*)?

       gpg_agent_tmp_t

            /home/[^/]*/.gnupg/log-socket

       httpd_user_content_t

            /home/[^/]*/((www)|(web)|(public_html))(/.+)?

       httpd_user_htaccess_t

            /home/[^/]*/((www)|(web)|(public_html))(/.*)?/.htaccess

       httpd_user_ra_content_t

            /home/[^/]*/((www)|(web)|(public_html))(/.*)?/logs(/.*)?

       httpd_user_rw_content_t


       httpd_user_script_exec_t

            /home/[^/]*/((www)|(web)|(public_html))/cgi-bin(/.+)?

       iceauth_home_t

            /root/.DCOP.*
            /root/.ICEauthority.*
            /home/[^/]*/.DCOP.*
            /home/[^/]*/.ICEauthority.*

       irc_home_t

            /home/[^/]*/.irssi(/.*)?
            /home/[^/]*/.ircmotd

       mail_spool_t

            /var/mail(/.*)?
            /var/spool/imap(/.*)?
            /var/spool/mail(/.*)?

       mqueue_spool_t

            /var/spool/(client)?mqueue(/.*)?
            /var/spool/mqueue.in(/.*)?

       nfsd_rw_t


       noxattrfs

            all files on file systems which do not support extended attributes

       sandbox_file_t


       sandbox_tmpfs_type

            all sandbox content in tmpfs file systems

       screen_home_t

            /root/.screen(/.*)?
            /home/[^/]*/.screen(/.*)?
            /home/[^/]*/.screenrc

       security_t

            /selinux

       usbfs_t


       user_fonts_cache_t

            /root/.fontconfig(/.*)?
            /root/.fonts/auto(/.*)?
            /root/.fonts.cache-.*
            /home/[^/]*/.fontconfig(/.*)?
            /home/[^/]*/.fonts/auto(/.*)?
            /home/[^/]*/.fonts.cache-.*

       user_fonts_t

            /root/.fonts(/.*)?
            /tmp/.font-unix(/.*)?
            /home/[^/]*/.fonts(/.*)?

       user_home_type

            all user home files

       user_tmp_type

            all user tmp files

       user_tmpfs_type

            all user content in tmpfs file systems

       virt_image_type

            all virtual image files

       xauth_home_t

            /root/.xauth.*
            /root/.Xauth.*
            /root/.serverauth.*
            /root/.Xauthority.*
            /var/lib/pqsql/.xauth.*
            /var/lib/pqsql/.Xauthority.*
            /var/lib/nxserver/home/.xauth.*
            /var/lib/nxserver/home/.Xauthority.*
            /home/[^/]*/.xauth.*
            /home/[^/]*/.Xauth.*
            /home/[^/]*/.serverauth.*
            /home/[^/]*/.Xauthority.*

       xdm_tmp_t

            /tmp/.X11-unix(/.*)?
            /tmp/.ICE-unix(/.*)?
            /tmp/.X0-lock

       xserver_tmpfs_t



COMMANDS
       semanage fcontext can also be used to manipulate default file context mappings.

       semanage permissive can also be used to manipulate whether or not a process type is permissive.

       semanage module can also be used to enable/disable/install/remove policy modules.

       semanage boolean can also be used to manipulate the booleans


       system-config-selinux is a GUI tool available to customize SELinux policy settings.


AUTHOR
       This manual page was auto-generated using sepolicy manpage .


SEE ALSO
       selinux(8),   user(8),   semanage(8),   restorecon(8),   chcon(1),   sepolicy(8)   ,  setsebool(8),  user_dbusd_selinux(8),
       user_dbusd_selinux(8), user_gkeyringd_selinux(8),  user_gkeyringd_selinux(8),  user_mail_selinux(8),  user_mail_selinux(8),
       user_screen_selinux(8),         user_screen_selinux(8),        user_seunshare_selinux(8),        user_seunshare_selinux(8),
       user_ssh_agent_selinux(8), user_ssh_agent_selinux(8), user_wine_selinux(8), user_wine_selinux(8)



mgrepl@redhat.com                                              user                                                user_selinux(8)
xguest_selinux(8)                               xguest SELinux Policy documentation                              xguest_selinux(8)



NAME
       xguest_u - Least privledge xwindows user role. - Security Enhanced Linux Policy


DESCRIPTION
       xguest_u  is  an  SELinux User defined in the SELinux policy. SELinux users have default roles, xguest_r.  The default role
       has a default type, xguest_t, associated with it.

       The SELinux user will usually login to a system with a context that looks like:

       xguest_u:xguest_r:xguest_t:s0

       Linux users are automatically assigned an SELinux users at login.  Login programs use the SELinux User  to  assign  initial
       context to the user's shell.

       SELinux policy uses the context to control the user's access.

       By default all users are assigned to the SELinux user via the __default__ flag

       On Targeted policy systems the __default__ user is assigned to the unconfined_u SELinux user.

       You can list all Linux User to SELinux user mapping using:

       semanage login -l

       If you wanted to change the default user mapping to use the xguest_u user, you would execute:

       semanage login -m -s xguest_u __default__


       If you want to map the one Linux user (joe) to the SELinux user xguest, you would execute:

       $ semanage login -a -s xguest_u joe



USER DESCRIPTION
       The  SELinux  user  xguest_u  is  defined  in policy as a unprivileged user. SELinux prevents unprivileged users from doing
       administration tasks without transitioning to a different role.


SUDO
X WINDOWS LOGIN
       The SELinux user xguest_u is able to X Windows login.


NETWORK
       The SELinux user xguest_u is able to connect to the following tcp ports.

              53

              631,8610-8614

              8081

              all ports with out defined types

              9080

              21,990

              8036

              8080,8118,8123,10001-10010

              80,81,443,488,8008,8009,8443,9000

              88,750,4444

              5001

              3128,3401,4827

              32768-61000

              4713

              843,1935

              8000,9433,16001


       The SELinux user xguest_u is able to connect to the following tcp ports.

              53

              631,8610-8614

              8081

              all ports with out defined types

              9080

              21,990

              8036

              8080,8118,8123,10001-10010

              80,81,443,488,8008,8009,8443,9000

              88,750,4444

              5001

              3128,3401,4827

              32768-61000

              4713

              843,1935

              8000,9433,16001


BOOLEANS
       SELinux policy is customizable based on least access required.  xguest policy is extremely flexible and has  several  bool‐
       eans that allow you to manipulate the policy and run xguest with the tightest access possible.



       If  you  want  to  allow  xguest  users  to  configure  Network  Manager  and connect to apache ports, you must turn on the
       xguest_connect_network boolean. Enabled by default.

       setsebool -P xguest_connect_network 1



       If you want to allow xguest users to mount removable media, you must turn on the  xguest_mount_media  boolean.  Enabled  by
       default.

       setsebool -P xguest_mount_media 1



       If  you  want  to  allow  xguest  to  use blue tooth devices, you must turn on the xguest_use_bluetooth boolean. Enabled by
       default.

       setsebool -P xguest_use_bluetooth 1



       If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn
       on the authlogin_nsswitch_use_ldap boolean. Disabled by default.

       setsebool -P authlogin_nsswitch_use_ldap 1



       If you want to deny user domains applications to map a memory region as both executable and writable, this is dangerous and
       the executable should be reported in bugzilla, you must turn on the deny_execmem boolean. Enabled by default.

       setsebool -P deny_execmem 1



       If you want to deny any process from ptracing or debugging any other processes, you must turn on the  deny_ptrace  boolean.
       Enabled by default.

       setsebool -P deny_ptrace 1



       If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled
       by default.

       setsebool -P domain_fd_use 1



       If you want to allow all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules  boolean.
       Disabled by default.

       setsebool -P domain_kernel_load_modules 1



       If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

       setsebool -P fips_mode 1



       If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.

       setsebool -P global_ssp 1



       If you want to allow httpd cgi support, you must turn on the httpd_enable_cgi boolean. Enabled by default.

       setsebool -P httpd_enable_cgi 1



       If you want to unify HTTPD handling of all content files, you must turn on the httpd_unified boolean. Disabled by default.

       setsebool -P httpd_unified 1



       If  you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by
       default.

       setsebool -P kerberos_enabled 1



       If you want to allow logging in and using the system from /dev/console, you must turn on the login_console_enabled boolean.
       Enabled by default.

       setsebool -P login_console_enabled 1



       If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.

       setsebool -P nis_enabled 1



       If  you  want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Disabled
       by default.

       setsebool -P nscd_use_shm 1



       If you want to disallow programs, such as newrole, from transitioning to administrative user domains, you must turn on  the
       secure_mode boolean. Enabled by default.

       setsebool -P secure_mode 1



       If  you  want to allow regular users direct dri device access, you must turn on the selinuxuser_direct_dri_enabled boolean.
       Enabled by default.

       setsebool -P selinuxuser_direct_dri_enabled 1



       If you want to allow unconfined executables to make their stack executable.  This should never, ever be necessary. Probably
       indicates  a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla, you must
       turn on the selinuxuser_execstack boolean. Enabled by default.

       setsebool -P selinuxuser_execstack 1



       If you want to allow user to r/w files on filesystems that do not have extended attributes (FAT, CDROM, FLOPPY),  you  must
       turn on the selinuxuser_rw_noexattrfile boolean. Enabled by default.

       setsebool -P selinuxuser_rw_noexattrfile 1



       If you want to allow user  to use ssh chroot environment, you must turn on the selinuxuser_use_ssh_chroot boolean. Disabled
       by default.

       setsebool -P selinuxuser_use_ssh_chroot 1



       If you want to allow ssh logins as sysadm_r:sysadm_t, you must turn on the ssh_sysadm_login boolean. Disabled by default.

       setsebool -P ssh_sysadm_login 1



       If you want to support NFS home directories, you must turn on the use_nfs_home_dirs boolean. Disabled by default.

       setsebool -P use_nfs_home_dirs 1



       If you want to support SAMBA home directories, you must turn on the use_samba_home_dirs boolean. Disabled by default.

       setsebool -P use_samba_home_dirs 1



       If you want to allow  the  graphical  login  program  to  login  directly  as  sysadm_r:sysadm_t,  you  must  turn  on  the
       xdm_sysadm_login boolean. Enabled by default.

       setsebool -P xdm_sysadm_login 1



       If   you   want   to   allows   clients  to  write  to  the  X  server  shared  memory  segments,  you  must  turn  on  the
       xserver_clients_write_xshm boolean. Disabled by default.

       setsebool -P xserver_clients_write_xshm 1



       If you want to support X userspace object manager, you must turn on the xserver_object_manager boolean. Enabled by default.

       setsebool -P xserver_object_manager 1



HOME_EXEC
       The SELinux user xguest_u is able execute home content files.


TRANSITIONS
       Three things can happen when xguest_t attempts to execute a program.

       1. SELinux Policy can deny xguest_t from executing the program.



       2. SELinux Policy can allow xguest_t to execute the program in the current user type.

              Execute the following to see the types that the SELinux user xguest_t can execute without transitioning:

              search -A -s xguest_t -c file -p execute_no_trans



       3. SELinux can allow xguest_t to execute the program and transition to a new type.

              Execute the following to see the types that the SELinux user xguest_t can execute and transition:

              $ search -A -s xguest_t -c process -p transition



MANAGED FILES
       The SELinux process type xguest_t can manage files labeled with the following file types.  The paths listed are the default
       paths for these file types.  Note the processes UID still need to have DAC permissions.

       anon_inodefs_t


       auth_cache_t

            /var/cache/coolkey(/.*)?

       chrome_sandbox_tmpfs_t


       cifs_t


       httpd_user_content_t

            /home/[^/]*/((www)|(web)|(public_html))(/.+)?

       httpd_user_htaccess_t

            /home/[^/]*/((www)|(web)|(public_html))(/.*)?/.htaccess

       httpd_user_ra_content_t

            /home/[^/]*/((www)|(web)|(public_html))(/.*)?/logs(/.*)?

       httpd_user_rw_content_t


       httpd_user_script_exec_t

            /home/[^/]*/((www)|(web)|(public_html))/cgi-bin(/.+)?

       noxattrfs

            all files on file systems which do not support extended attributes

       usbfs_t


       user_fonts_cache_t

            /root/.fontconfig(/.*)?
            /root/.fonts/auto(/.*)?
            /root/.fonts.cache-.*
            /home/[^/]*/.fontconfig(/.*)?
            /home/[^/]*/.fonts/auto(/.*)?
            /home/[^/]*/.fonts.cache-.*

       user_home_type

            all user home files

       user_tmp_type

            all user tmp files

       user_tmpfs_type

            all user content in tmpfs file systems

       xdm_tmp_t

            /tmp/.X11-unix(/.*)?
            /tmp/.ICE-unix(/.*)?
            /tmp/.X0-lock

       xserver_tmpfs_t



COMMANDS
       semanage fcontext can also be used to manipulate default file context mappings.

       semanage permissive can also be used to manipulate whether or not a process type is permissive.

       semanage module can also be used to enable/disable/install/remove policy modules.

       semanage boolean can also be used to manipulate the booleans


       system-config-selinux is a GUI tool available to customize SELinux policy settings.


AUTHOR
       This manual page was auto-generated using sepolicy manpage .


SEE ALSO
       selinux(8),   xguest(8),   semanage(8),  restorecon(8),  chcon(1),  sepolicy(8)  ,  setsebool(8),  xguest_dbusd_selinux(8),
       xguest_dbusd_selinux(8), xguest_gkeyringd_selinux(8), xguest_gkeyringd_selinux(8)



mgrepl@redhat.com                                             xguest                                             xguest_selinux(8)

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