hostname_selinux(8)

1hostname_selinux(8)         SELinux Policy hostname        hostname_selinux(8)
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NAME

6       hostname_selinux - Security Enhanced Linux Policy for the hostname pro‐
7       cesses
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DESCRIPTION

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

24       The hostname_t SELinux type can be entered via the hostname_exec_t file
25       type.
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27       The default entrypoint paths for the hostname_t domain are the  follow‐
28       ing:
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30       /bin/hostname, /usr/bin/hostname
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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       hostname policy is very flexible allowing users to setup their hostname
40       processes in as secure a method as possible.
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42       The following process types are defined for hostname:
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44       hostname_t
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46       Note: semanage permissive -a hostname_t can be used to make the process
47       type  hostname_t permissive. SELinux does not deny access to permissive
48       process types, but the AVC (SELinux denials) messages are still  gener‐
49       ated.
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BOOLEANS

53       SELinux  policy  is customizable based on least access required.  host‐
54       name policy is extremely flexible and has several booleans  that  allow
55       you  to manipulate the policy and run hostname with the tightest access
56       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  allow  system  to run with NIS, you must turn on the
68       nis_enabled boolean. Disabled by default.
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70       setsebool -P nis_enabled 1
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74       If you want to allow confined applications to use nscd  shared  memory,
75       you must turn on the nscd_use_shm boolean. Enabled by default.
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77       setsebool -P nscd_use_shm 1
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MANAGED FILES

82       The  SELinux  process type hostname_t can manage files labeled with the
83       following file types.  The paths listed are the default paths for these
84       file types.  Note the processes UID still need to have DAC permissions.
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86       cluster_tmp_t
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FILE CONTEXTS

91       SELinux requires files to have an extended attribute to define the file
92       type.
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94       You can see the context of a file using the -Z option to ls
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96       Policy governs the access  confined  processes  have  to  these  files.
97       SELinux  hostname policy is very flexible allowing users to setup their
98       hostname processes in as secure a method as possible.
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100       STANDARD FILE CONTEXT
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102       SELinux defines the file context types for the hostname, if you  wanted
103       to store files with these types in a diffent paths, you need to execute
104       the semanage command to specify alternate labeling  and  then  use  re‐
105       storecon to put the labels on disk.
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107       semanage fcontext -a -t hostname_etc_t '/srv/myhostname_content(/.*)?'
108       restorecon -R -v /srv/myhostname_content
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110       Note:  SELinux  often  uses  regular expressions to specify labels that
111       match multiple files.
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113       The following file types are defined for hostname:
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117       hostname_etc_t
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119       - Set files with the hostname_etc_t type, if you want to store hostname
120       files in the /etc directories.
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123       Paths:
124            /etc/.*hostname.*,   /etc/machine-info,  /var/run/systemd/default-
125            hostname
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128       hostname_exec_t
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130       - Set files with the hostname_exec_t type, if you want to transition an
131       executable to the hostname_t domain.
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134       Paths:
135            /bin/hostname, /usr/bin/hostname
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138       Note:  File context can be temporarily modified with the chcon command.
139       If you want to permanently change the file context you need to use  the
140       semanage fcontext command.  This will modify the SELinux labeling data‐
141       base.  You will need to use restorecon to apply the labels.
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COMMANDS

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

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