updpwd_selinux(8)

1updpwd_selinux(8)            SELinux Policy updpwd           updpwd_selinux(8)
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NAME

6       updpwd_selinux  -  Security  Enhanced  Linux Policy for the updpwd pro‐
7       cesses
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DESCRIPTION

10       Security-Enhanced Linux  secures  the  updpwd  processes  via  flexible
11       mandatory access control.
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13       The  updpwd  processes  execute with the updpwd_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 updpwd_t
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ENTRYPOINTS

24       The  updpwd_t  SELinux  type  can be entered via the updpwd_exec_t file
25       type.
26
27       The default entrypoint paths for the updpwd_t domain are the following:
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29       /sbin/tcb_convert,       /sbin/unix_update,        /sbin/tcb_unconvert,
30       /usr/sbin/tcb_convert,  /usr/sbin/unix_update, /usr/sbin/tcb_unconvert,
31       /usr/sbin/pwhistory_helper, /usr/libexec/chkpwd/tcb_updpwd
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PROCESS TYPES

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

54       SELinux policy is customizable based on least access required.   updpwd
55       policy is extremely flexible and has several booleans that allow you to
56       manipulate the policy and run updpwd with the tightest 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 allow Apache to use mod_auth_pam, you must turn on the
68       httpd_mod_auth_pam boolean. Disabled by default.
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70       setsebool -P httpd_mod_auth_pam 1
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74       If you want to allow nagios/nrpe to call sudo from NRPE utils  scripts,
75       you must turn on the nagios_run_sudo boolean. Disabled by default.
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77       setsebool -P nagios_run_sudo 1
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81       If  you  want  to  allow  system  to run with NIS, you must turn on the
82       nis_enabled boolean. Disabled by default.
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84       setsebool -P nis_enabled 1
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MANAGED FILES

89       The SELinux process type updpwd_t can manage  files  labeled  with  the
90       following file types.  The paths listed are the default paths for these
91       file types.  Note the processes UID still need to have DAC permissions.
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93       krb5_host_rcache_t
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95            /var/tmp/krb5_0.rcache2
96            /var/cache/krb5rcache(/.*)?
97            /var/tmp/nfs_0
98            /var/tmp/DNS_25
99            /var/tmp/host_0
100            /var/tmp/imap_0
101            /var/tmp/HTTP_23
102            /var/tmp/HTTP_48
103            /var/tmp/ldap_55
104            /var/tmp/ldap_487
105            /var/tmp/ldapmap1_0
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107       shadow_t
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109            /etc/tcb/.+/shadow.*
110            /etc/shadow.*
111            /etc/gshadow.*
112            /etc/nshadow.*
113            /var/db/shadow.*
114            /etc/security/opasswd
115            /etc/security/opasswd.old
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FILE CONTEXTS

119       SELinux requires files to have an extended attribute to define the file
120       type.
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122       You can see the context of a file using the -Z option to ls
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124       Policy  governs  the  access  confined  processes  have to these files.
125       SELinux updpwd policy is very flexible allowing users  to  setup  their
126       updpwd processes in as secure a method as possible.
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128       STANDARD FILE CONTEXT
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130       SELinux defines the file context types for the updpwd, if you wanted to
131       store files with these types in a different paths, you need to  execute
132       the  semanage  command  to  specify alternate labeling and then use re‐
133       storecon to put the labels on disk.
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135       semanage fcontext -a -t updpwd_exec_t '/srv/updpwd/content(/.*)?'
136       restorecon -R -v /srv/myupdpwd_content
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138       Note: SELinux often uses regular expressions  to  specify  labels  that
139       match multiple files.
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141       The following file types are defined for updpwd:
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145       updpwd_exec_t
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147       -  Set  files with the updpwd_exec_t type, if you want to transition an
148       executable to the updpwd_t domain.
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151       Paths:
152            /sbin/tcb_convert,     /sbin/unix_update,     /sbin/tcb_unconvert,
153            /usr/sbin/tcb_convert, /usr/sbin/unix_update, /usr/sbin/tcb_uncon‐
154            vert, /usr/sbin/pwhistory_helper, /usr/libexec/chkpwd/tcb_updpwd
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157       Note: File context can be temporarily modified with the chcon  command.
158       If  you want to permanently change the file context you need to use the
159       semanage fcontext command.  This will modify the SELinux labeling data‐
160       base.  You will need to use restorecon to apply the labels.
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COMMANDS

164       semanage  fcontext  can also be used to manipulate default file context
165       mappings.
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167       semanage permissive can also be used to manipulate  whether  or  not  a
168       process type is permissive.
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170       semanage  module can also be used to enable/disable/install/remove pol‐
171       icy modules.
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173       semanage boolean can also be used to manipulate the booleans
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176       system-config-selinux is a GUI tool available to customize SELinux pol‐
177       icy settings.
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AUTHOR

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