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/tmux, /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 execute in fips_mode, you must turn
61       on the fips_mode boolean. Enabled by default.
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63       setsebool -P fips_mode 1
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67       If  you  want  to determine whether screen can use fsetid/setuid/setgid
68       capability, you must turn on the screen_allow_session_sharing  boolean.
69       Disabled by default.
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71       setsebool -P screen_allow_session_sharing 1
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75       If  you  want  to  support  NFS  home directories, you must turn on the
76       use_nfs_home_dirs boolean. Disabled by default.
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78       setsebool -P use_nfs_home_dirs 1
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82       If you want to support SAMBA home directories, you  must  turn  on  the
83       use_samba_home_dirs boolean. Disabled by default.
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85       setsebool -P use_samba_home_dirs 1
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MANAGED FILES

90       The  SELinux  process  type user_screen_t can manage files labeled with
91       the following file types.  The paths listed are the default  paths  for
92       these  file  types.  Note the processes UID still need to have DAC per‐
93       missions.
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95       faillog_t
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97            /var/log/btmp.*
98            /var/log/faillog.*
99            /var/log/tallylog.*
100            /var/run/faillock(/.*)?
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102       initrc_var_run_t
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104            /var/run/utmp
105            /var/run/random-seed
106            /var/run/runlevel.dir
107            /var/run/setmixer_flag
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109       krb5_host_rcache_t
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111            /var/tmp/krb5_0.rcache2
112            /var/cache/krb5rcache(/.*)?
113            /var/tmp/nfs_0
114            /var/tmp/DNS_25
115            /var/tmp/host_0
116            /var/tmp/imap_0
117            /var/tmp/HTTP_23
118            /var/tmp/HTTP_48
119            /var/tmp/ldap_55
120            /var/tmp/ldap_487
121            /var/tmp/ldapmap1_0
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123       user_tmp_type
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125            all user tmp files
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COMMANDS

129       semanage fcontext can also be used to manipulate default  file  context
130       mappings.
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132       semanage  permissive  can  also  be used to manipulate whether or not a
133       process type is permissive.
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135       semanage module can also be used to enable/disable/install/remove  pol‐
136       icy modules.
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138       semanage boolean can also be used to manipulate the booleans
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141       system-config-selinux is a GUI tool available to customize SELinux pol‐
142       icy settings.
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AUTHOR

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