system_mail_selinux(8)

1system_mail_selinux(8)    SELinux Policy system_mail    system_mail_selinux(8)
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NAME

6       system_mail_selinux  -  Security  Enhanced  Linux  Policy  for the sys‐
7       tem_mail processes
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DESCRIPTION

10       Security-Enhanced Linux secures the system_mail processes via  flexible
11       mandatory access control.
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13       The  system_mail processes execute with the system_mail_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 system_mail_t
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ENTRYPOINTS

24       The  system_mail_t  SELinux type can be entered via the sendmail_exec_t
25       file type.
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27       The default entrypoint paths for the system_mail_t domain are the  fol‐
28       lowing:
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30       /usr/sbin/sendmail(.sendmail)?,     /usr/bin/esmtp,    /usr/sbin/rmail,
31       /usr/sbin/ssmtp,       /usr/lib/sendmail,       /usr/bin/esmtp-wrapper,
32       /var/qmail/bin/sendmail, /usr/sbin/sendmail.postfix
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PROCESS TYPES

35       SELinux defines process types (domains) for each process running on the
36       system
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38       You can see the context of a process using the -Z option to ps
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40       Policy governs the access confined processes have  to  files.   SELinux
41       system_mail  policy is very flexible allowing users to setup their sys‐
42       tem_mail processes in as secure a method as possible.
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44       The following process types are defined for system_mail:
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46       system_mail_t
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48       Note: semanage permissive -a system_mail_t can  be  used  to  make  the
49       process  type system_mail_t permissive. SELinux does not deny access to
50       permissive process types, but the AVC (SELinux  denials)  messages  are
51       still generated.
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BOOLEANS

55       SELinux  policy  is  customizable based on least access required.  sys‐
56       tem_mail policy is extremely flexible and  has  several  booleans  that
57       allow  you to manipulate the policy and run system_mail with the tight‐
58       est access possible.
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62       If you want to allow users to resolve user passwd entries directly from
63       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
64       gin_nsswitch_use_ldap boolean. Disabled by default.
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66       setsebool -P authlogin_nsswitch_use_ldap 1
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70       If you want to allow all domains to execute in fips_mode, you must turn
71       on the fips_mode boolean. Enabled by default.
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73       setsebool -P fips_mode 1
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77       If  you  want to determine whether Gitosis can send mail, you must turn
78       on the gitosis_can_sendmail boolean. Disabled by default.
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80       setsebool -P gitosis_can_sendmail 1
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83
84       If you want to allow http daemon to send mail, you  must  turn  on  the
85       httpd_can_sendmail boolean. Disabled by default.
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87       setsebool -P httpd_can_sendmail 1
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91       If  you  want  to allow confined applications to run with kerberos, you
92       must turn on the kerberos_enabled boolean. Enabled by default.
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94       setsebool -P kerberos_enabled 1
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98       If you want to allow system to run with  NIS,  you  must  turn  on  the
99       nis_enabled boolean. Disabled by default.
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101       setsebool -P nis_enabled 1
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104
105       If  you  want to allow confined applications to use nscd shared memory,
106       you must turn on the nscd_use_shm boolean. Enabled by default.
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108       setsebool -P nscd_use_shm 1
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111
112       If you want to support ecryptfs home directories, you must turn on  the
113       use_ecryptfs_home_dirs boolean. Disabled by default.
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115       setsebool -P use_ecryptfs_home_dirs 1
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MANAGED FILES

120       The  SELinux  process  type system_mail_t can manage files labeled with
121       the following file types.  The paths listed are the default  paths  for
122       these  file  types.  Note the processes UID still need to have DAC per‐
123       missions.
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125       anon_inodefs_t
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127
128       arpwatch_tmp_t
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130
131       cifs_t
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134       courier_spool_t
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136            /var/spool/courier(/.*)?
137            /var/spool/authdaemon(/.*)?
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139       ecryptfs_t
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141            /home/[^/]+/.Private(/.*)?
142            /home/[^/]+/.ecryptfs(/.*)?
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144       etc_aliases_t
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146            /etc/mail/.*.db
147            /etc/mail/aliases.*
148            /etc/postfix/aliases.*
149            /etc/aliases
150            /etc/aliases.db
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152       exim_log_t
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154            /var/log/exim[0-9]?(/.*)?
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156       exim_spool_t
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158            /var/spool/exim[0-9]?(/.*)?
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160       mail_home_rw_t
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162            /root/Maildir(/.*)?
163            /root/.esmtp_queue(/.*)?
164            /home/[^/]+/.maildir(/.*)?
165            /home/[^/]+/Maildir(/.*)?
166            /home/[^/]+/.esmtp_queue(/.*)?
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168       mail_home_t
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170            /root/.mailrc
171            /root/.forward
172            /root/dead.letter
173            /home/[^/]+/.forward[^/]*
174            /home/[^/]+/.mailrc
175            /home/[^/]+/dead.letter
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177       mail_spool_t
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179            /var/mail(/.*)?
180            /var/spool/imap(/.*)?
181            /var/spool/mail(/.*)?
182            /var/spool/smtpd(/.*)?
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184       mqueue_spool_t
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186            /var/spool/(client)?mqueue(/.*)?
187            /var/spool/mqueue.in(/.*)?
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189       munin_var_lib_t
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191            /var/lib/munin(/.*)?
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193       nfs_t
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195
196       qmail_spool_t
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198            /var/qmail/queue(/.*)?
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200       sendmail_log_t
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202            /var/log/mail(/.*)?
203            /var/log/sendmail.st.*
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205       system_mail_tmp_t
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208       uucpd_spool_t
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210            /var/spool/uucp(/.*)?
211            /var/spool/uucppublic(/.*)?
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COMMANDS

215       semanage fcontext can also be used to manipulate default  file  context
216       mappings.
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218       semanage  permissive  can  also  be used to manipulate whether or not a
219       process type is permissive.
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221       semanage module can also be used to enable/disable/install/remove  pol‐
222       icy modules.
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224       semanage boolean can also be used to manipulate the booleans
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226
227       system-config-selinux is a GUI tool available to customize SELinux pol‐
228       icy settings.
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AUTHOR

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