chfn_selinux(8)

1chfn_selinux(8)               SELinux Policy chfn              chfn_selinux(8)
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NAME

6       chfn_selinux - Security Enhanced Linux Policy for the chfn processes
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DESCRIPTION

9       Security-Enhanced  Linux secures the chfn processes via flexible manda‐
10       tory access control.
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12       The chfn processes execute with the chfn_t SELinux type. You can  check
13       if  you  have  these processes running by executing the ps command with
14       the -Z qualifier.
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16       For example:
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18       ps -eZ | grep chfn_t
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ENTRYPOINTS

23       The chfn_t SELinux type can be entered via the chfn_exec_t file type.
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25       The default entrypoint paths for the chfn_t domain are the following:
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27       /usr/bin/chfn, /usr/bin/chsh
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PROCESS TYPES

30       SELinux defines process types (domains) for each process running on the
31       system
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33       You can see the context of a process using the -Z option to ps
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35       Policy  governs  the  access confined processes have to files.  SELinux
36       chfn policy is very flexible allowing users to setup  their  chfn  pro‐
37       cesses in as secure a method as possible.
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39       The following process types are defined for chfn:
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41       chfn_t
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43       Note:  semanage  permissive  -a  chfn_t can be used to make the process
44       type chfn_t permissive. SELinux does  not  deny  access  to  permissive
45       process  types, but the AVC (SELinux denials) messages are still gener‐
46       ated.
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BOOLEANS

50       SELinux policy is customizable based on least  access  required.   chfn
51       policy is extremely flexible and has several booleans that allow you to
52       manipulate the policy and run chfn with the tightest access possible.
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56       If you want to allow all domains to execute in fips_mode, you must turn
57       on the fips_mode boolean. Enabled by default.
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59       setsebool -P fips_mode 1
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63       If  you  want  to  allow  system  to run with NIS, you must turn on the
64       nis_enabled boolean. Disabled by default.
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66       setsebool -P nis_enabled 1
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MANAGED FILES

71       The SELinux process type chfn_t can manage files labeled with the  fol‐
72       lowing  file  types.   The paths listed are the default paths for these
73       file types.  Note the processes UID still need to have DAC permissions.
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75       faillog_t
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77            /var/log/btmp.*
78            /var/log/faillog.*
79            /var/log/tallylog.*
80            /var/run/faillock(/.*)?
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82       krb5_host_rcache_t
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84            /var/tmp/krb5_0.rcache2
85            /var/cache/krb5rcache(/.*)?
86            /var/tmp/nfs_0
87            /var/tmp/DNS_25
88            /var/tmp/host_0
89            /var/tmp/imap_0
90            /var/tmp/HTTP_23
91            /var/tmp/HTTP_48
92            /var/tmp/ldap_55
93            /var/tmp/ldap_487
94            /var/tmp/ldapmap1_0
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96       lastlog_t
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98            /var/log/lastlog.*
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100       security_t
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102            /selinux
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FILE CONTEXTS

106       SELinux requires files to have an extended attribute to define the file
107       type.
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109       You can see the context of a file using the -Z option to ls
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111       Policy  governs  the  access  confined  processes  have to these files.
112       SELinux chfn policy is very flexible allowing users to setup their chfn
113       processes in as secure a method as possible.
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115       STANDARD FILE CONTEXT
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117       SELinux  defines  the file context types for the chfn, if you wanted to
118       store files with these types in a different paths, you need to  execute
119       the  semanage  command  to  specify alternate labeling and then use re‐
120       storecon to put the labels on disk.
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122       semanage fcontext -a -t chfn_exec_t '/srv/chfn/content(/.*)?'
123       restorecon -R -v /srv/mychfn_content
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125       Note: SELinux often uses regular expressions  to  specify  labels  that
126       match multiple files.
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128       The following file types are defined for chfn:
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132       chfn_exec_t
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134       - Set files with the chfn_exec_t type, if you want to transition an ex‐
135       ecutable to the chfn_t domain.
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138       Paths:
139            /usr/bin/chfn, /usr/bin/chsh
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142       Note: File context can be temporarily modified with the chcon  command.
143       If  you want to permanently change the file context you need to use the
144       semanage fcontext command.  This will modify the SELinux labeling data‐
145       base.  You will need to use restorecon to apply the labels.
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COMMANDS

149       semanage  fcontext  can also be used to manipulate default file context
150       mappings.
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152       semanage permissive can also be used to manipulate  whether  or  not  a
153       process type is permissive.
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155       semanage  module can also be used to enable/disable/install/remove pol‐
156       icy modules.
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158       semanage boolean can also be used to manipulate the booleans
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161       system-config-selinux is a GUI tool available to customize SELinux pol‐
162       icy settings.
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AUTHOR

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