chkpwd_selinux(8)

1chkpwd_selinux(8)            SELinux Policy chkpwd           chkpwd_selinux(8)
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NAME

6       chkpwd_selinux  -  Security  Enhanced  Linux Policy for the chkpwd pro‐
7       cesses
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DESCRIPTION

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

24       The  chkpwd_t  SELinux  type  can be entered via the chkpwd_exec_t file
25       type.
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27       The default entrypoint paths for the chkpwd_t domain are the following:
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29       /sbin/unix_chkpwd,        /sbin/unix_verify,        /usr/sbin/validate,
30       /usr/sbin/unix_chkpwd, /usr/sbin/unix_verify
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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       chkpwd  policy  is  very  flexible allowing users to setup their chkpwd
40       processes in as secure a method as possible.
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42       The following process types are defined for chkpwd:
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44       chkpwd_t
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46       Note: semanage permissive -a chkpwd_t can be used to make  the  process
47       type  chkpwd_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.  chkpwd
54       policy is extremely flexible and has several booleans that allow you to
55       manipulate the policy and run chkpwd with the tightest access possible.
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59       If you want to allow users to resolve user passwd entries directly from
60       ldap rather then using a sssd server, you  must  turn  on  the  authlo‐
61       gin_nsswitch_use_ldap boolean. Disabled by default.
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63       setsebool -P authlogin_nsswitch_use_ldap 1
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67       If you want to allow all domains to execute in fips_mode, you must turn
68       on the fips_mode boolean. Enabled by default.
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70       setsebool -P fips_mode 1
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74       If you want to allow Apache to use mod_auth_pam, you must turn  on  the
75       httpd_mod_auth_pam boolean. Disabled by default.
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77       setsebool -P httpd_mod_auth_pam 1
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81       If  you  want  to allow confined applications to run with kerberos, you
82       must turn on the kerberos_enabled boolean. Enabled by default.
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84       setsebool -P kerberos_enabled 1
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88       If you want to allow nagios/nrpe to call sudo from NRPE utils  scripts,
89       you must turn on the nagios_run_sudo boolean. Disabled by default.
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91       setsebool -P nagios_run_sudo 1
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95       If  you  want  to  allow  system  to run with NIS, you must turn on the
96       nis_enabled boolean. Disabled by default.
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98       setsebool -P nis_enabled 1
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102       If you want to allow confined applications to use nscd  shared  memory,
103       you must turn on the nscd_use_shm boolean. Enabled by default.
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105       setsebool -P nscd_use_shm 1
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FILE CONTEXTS

110       SELinux requires files to have an extended attribute to define the file
111       type.
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113       You can see the context of a file using the -Z option to ls
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115       Policy governs the access  confined  processes  have  to  these  files.
116       SELinux  chkpwd  policy  is very flexible allowing users to setup their
117       chkpwd processes in as secure a method as possible.
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119       The following file types are defined for chkpwd:
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123       chkpwd_exec_t
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125       - Set files with the chkpwd_exec_t type, if you want to  transition  an
126       executable to the chkpwd_t domain.
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129       Paths:
130            /sbin/unix_chkpwd,      /sbin/unix_verify,     /usr/sbin/validate,
131            /usr/sbin/unix_chkpwd, /usr/sbin/unix_verify
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134       Note: File context can be temporarily modified with the chcon  command.
135       If  you want to permanently change the file context you need to use the
136       semanage fcontext command.  This will modify the SELinux labeling data‐
137       base.  You will need to use restorecon to apply the labels.
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COMMANDS

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

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