user_screen_selinux(8)

1user_screen_selinux(8)    SELinux Policy user_screen    user_screen_selinux(8)
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NAME

6       user_screen_selinux   -   Security   Enhanced   Linux  Policy  for  the
7       user_screen processes
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DESCRIPTION

10       Security-Enhanced Linux secures the user_screen processes via  flexible
11       mandatory access control.
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13       The  user_screen processes execute with the user_screen_t SELinux type.
14       You can check if you have these processes running by executing  the  ps
15       command with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep user_screen_t
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ENTRYPOINTS

24       The  user_screen_t  SELinux  type  can be entered via the screen_exec_t
25       file type.
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27       The default entrypoint paths for the user_screen_t domain are the  fol‐
28       lowing:
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30       /usr/bin/screen
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PROCESS TYPES

33       SELinux defines process types (domains) for each process running on the
34       system
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36       You can see the context of a process using the -Z option to ps
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38       Policy governs the access confined processes have  to  files.   SELinux
39       user_screen  policy  is  very  flexible  allowing  users to setup their
40       user_screen processes in as secure a method as possible.
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42       The following process types are defined for user_screen:
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44       user_screen_t
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46       Note: semanage permissive -a user_screen_t can  be  used  to  make  the
47       process  type user_screen_t permissive. SELinux does not deny access to
48       permissive process types, but the AVC (SELinux  denials)  messages  are
49       still generated.
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BOOLEANS

53       SELinux   policy  is  customizable  based  on  least  access  required.
54       user_screen policy is extremely flexible and has several booleans  that
55       allow  you to manipulate the policy and run user_screen with the tight‐
56       est access possible.
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60       If you want to allow all domains to use other domains file descriptors,
61       you must turn on the allow_domain_fd_use boolean. Enabled by default.
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63       setsebool -P allow_domain_fd_use 1
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67       If  you  want  to allow confined applications to run with kerberos, you
68       must turn on the allow_kerberos boolean. Enabled by default.
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70       setsebool -P allow_kerberos 1
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74       If you want to allow sysadm to debug or ptrace all processes, you  must
75       turn on the allow_ptrace boolean. Disabled by default.
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77       setsebool -P allow_ptrace 1
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81       If  you  want  to  allow  system  to run with NIS, you must turn on the
82       allow_ypbind boolean. Disabled by default.
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84       setsebool -P allow_ypbind 1
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88       If you want to allow all domains to have the kernel load  modules,  you
89       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
90       default.
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92       setsebool -P domain_kernel_load_modules 1
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96       If you want to allow all domains to execute in fips_mode, you must turn
97       on the fips_mode boolean. Enabled by default.
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99       setsebool -P fips_mode 1
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103       If you want to enable reading of urandom for all domains, you must turn
104       on the global_ssp boolean. Disabled by default.
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106       setsebool -P global_ssp 1
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110       If you want to allow confined applications to use nscd  shared  memory,
111       you must turn on the nscd_use_shm boolean. Enabled by default.
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113       setsebool -P nscd_use_shm 1
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117       If  you  want  to  support  NFS  home directories, you must turn on the
118       use_nfs_home_dirs boolean. Disabled by default.
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120       setsebool -P use_nfs_home_dirs 1
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124       If you want to support SAMBA home directories, you  must  turn  on  the
125       use_samba_home_dirs boolean. Disabled by default.
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127       setsebool -P use_samba_home_dirs 1
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MANAGED FILES

132       The  SELinux  process  type user_screen_t can manage files labeled with
133       the following file types.  The paths listed are the default  paths  for
134       these  file  types.  Note the processes UID still need to have DAC per‐
135       missions.
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137       faillog_t
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139            /var/log/btmp.*
140            /var/log/faillog.*
141            /var/log/tallylog.*
142            /var/run/faillock(/.*)?
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144       initrc_tmp_t
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147       initrc_var_run_t
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149            /var/run/utmp
150            /var/run/random-seed
151            /var/run/runlevel.dir
152            /var/run/setmixer_flag
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154       mnt_t
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156            /mnt(/[^/]*)
157            /mnt(/[^/]*)?
158            /rhev(/[^/]*)?
159            /media(/[^/]*)
160            /media(/[^/]*)?
161            /etc/rhgb(/.*)?
162            /media/.hal-.*
163            /net
164            /afs
165            /rhev
166            /misc
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168       pcscd_var_run_t
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170            /var/run/pcscd.events(/.*)?
171            /var/run/pcscd.pid
172            /var/run/pcscd.pub
173            /var/run/pcscd.comm
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175       screen_tmp_t
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178       tmp_t
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180            /tmp
181            /usr/tmp
182            /var/tmp
183            /tmp-inst
184            /var/tmp-inst
185            /var/tmp/vi.recover
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COMMANDS

189       semanage fcontext can also be used to manipulate default  file  context
190       mappings.
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192       semanage  permissive  can  also  be used to manipulate whether or not a
193       process type is permissive.
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195       semanage module can also be used to enable/disable/install/remove  pol‐
196       icy modules.
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198       semanage boolean can also be used to manipulate the booleans
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201       system-config-selinux is a GUI tool available to customize SELinux pol‐
202       icy settings.
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AUTHOR

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