user_mail_selinux(8)

1user_mail_selinux(8)       SELinux Policy user_mail       user_mail_selinux(8)
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NAME

6       user_mail_selinux  -  Security  Enhanced Linux Policy for the user_mail
7       processes
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DESCRIPTION

10       Security-Enhanced Linux secures the user_mail  processes  via  flexible
11       mandatory access control.
12
13       The  user_mail processes execute with the user_mail_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:
18
19       ps -eZ | grep user_mail_t
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ENTRYPOINTS

24       The  user_mail_t  SELinux  type  can  be entered via the mta_exec_type,
25       sendmail_exec_t file types.
26
27       The default entrypoint paths for the user_mail_t domain are the follow‐
28       ing:
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30       /usr/sbin/sendmail(.sendmail)?,     /usr/bin/esmtp,    /usr/sbin/rmail,
31       /usr/sbin/ssmtp,      /usr/lib/sendmail,       /var/qmail/bin/sendmail,
32       /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       user_mail  policy  is  very  flexible  allowing  users  to  setup their
42       user_mail processes in as secure a method as possible.
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44       The following process types are defined for user_mail:
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46       user_mail_t
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48       Note: semanage permissive -a  user_mail_t  can  be  used  to  make  the
49       process  type  user_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.
56       user_mail policy is extremely flexible and has  several  booleans  that
57       allow  you to manipulate the policy and run user_mail with the tightest
58       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 deny any process from ptracing or  debugging  any  other
71       processes,  you  must  turn  on  the  deny_ptrace  boolean.  Enabled by
72       default.
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74       setsebool -P deny_ptrace 1
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78       If you want to allow any process  to  mmap  any  file  on  system  with
79       attribute  file_type,  you must turn on the domain_can_mmap_files bool‐
80       ean. Enabled by default.
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82       setsebool -P domain_can_mmap_files 1
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86       If you want to allow all domains write to kmsg_device, while kernel  is
87       executed  with  systemd.log_target=kmsg parameter, you must turn on the
88       domain_can_write_kmsg boolean. Disabled by default.
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90       setsebool -P domain_can_write_kmsg 1
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94       If you want to allow all domains to use other domains file descriptors,
95       you must turn on the domain_fd_use boolean. Enabled by default.
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97       setsebool -P domain_fd_use 1
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101       If  you  want to allow all domains to have the kernel load modules, you
102       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
103       default.
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105       setsebool -P domain_kernel_load_modules 1
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109       If you want to allow all domains to execute in fips_mode, you must turn
110       on the fips_mode boolean. Enabled by default.
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112       setsebool -P fips_mode 1
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116       If you want to enable reading of urandom for all domains, you must turn
117       on the global_ssp boolean. Disabled by default.
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119       setsebool -P global_ssp 1
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123       If  you  want  to allow confined applications to run with kerberos, you
124       must turn on the kerberos_enabled boolean. Enabled by default.
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126       setsebool -P kerberos_enabled 1
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130       If you want to allow system to run with  NIS,  you  must  turn  on  the
131       nis_enabled boolean. Disabled by default.
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133       setsebool -P nis_enabled 1
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136
137       If  you  want to allow confined applications to use nscd shared memory,
138       you must turn on the nscd_use_shm boolean. Disabled by default.
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140       setsebool -P nscd_use_shm 1
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143
144       If you want to support NFS home  directories,  you  must  turn  on  the
145       use_nfs_home_dirs boolean. Disabled by default.
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147       setsebool -P use_nfs_home_dirs 1
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151       If  you  want  to  support SAMBA home directories, you must turn on the
152       use_samba_home_dirs boolean. Disabled by default.
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154       setsebool -P use_samba_home_dirs 1
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MANAGED FILES

159       The SELinux process type user_mail_t can manage files labeled with  the
160       following file types.  The paths listed are the default paths for these
161       file types.  Note the processes UID still need to have DAC permissions.
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163       cifs_t
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166       courier_spool_t
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168            /var/spool/courier(/.*)?
169            /var/spool/authdaemon(/.*)?
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171       exim_log_t
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173            /var/log/exim[0-9]?(/.*)?
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175       exim_spool_t
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177            /var/spool/exim[0-9]?(/.*)?
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179       mail_home_rw_t
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181            /root/Maildir(/.*)?
182            /root/.esmtp_queue(/.*)?
183            /home/[^/]+/.maildir(/.*)?
184            /home/[^/]+/Maildir(/.*)?
185            /home/[^/]+/.esmtp_queue(/.*)?
186
187       mail_home_t
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189            /root/.mailrc
190            /root/.forward
191            /root/dead.letter
192            /home/[^/]+/.forward[^/]*
193            /home/[^/]+/.mailrc
194            /home/[^/]+/dead.letter
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196       mail_spool_t
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198            /var/mail(/.*)?
199            /var/spool/imap(/.*)?
200            /var/spool/mail(/.*)?
201            /var/spool/smtpd(/.*)?
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203       mqueue_spool_t
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205            /var/spool/(client)?mqueue(/.*)?
206            /var/spool/mqueue.in(/.*)?
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208       nfs_t
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211       sendmail_log_t
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213            /var/log/mail(/.*)?
214            /var/log/sendmail.st.*
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216       user_home_t
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218            /home/[^/]+/.+
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220       user_mail_tmp_t
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222
223       user_tmp_t
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225            /dev/shm/mono.*
226            /var/run/user(/.*)?
227            /tmp/.X11-unix(/.*)?
228            /tmp/.ICE-unix(/.*)?
229            /dev/shm/pulse-shm.*
230            /tmp/.X0-lock
231            /tmp/hsperfdata_root
232            /var/tmp/hsperfdata_root
233            /home/[^/]+/tmp
234            /home/[^/]+/.tmp
235            /tmp/gconfd-[^/]+
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237       uucpd_spool_t
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239            /var/spool/uucp(/.*)?
240            /var/spool/uucppublic(/.*)?
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COMMANDS

244       semanage fcontext can also be used to manipulate default  file  context
245       mappings.
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247       semanage  permissive  can  also  be used to manipulate whether or not a
248       process type is permissive.
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250       semanage module can also be used to enable/disable/install/remove  pol‐
251       icy modules.
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253       semanage boolean can also be used to manipulate the booleans
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255
256       system-config-selinux is a GUI tool available to customize SELinux pol‐
257       icy settings.
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AUTHOR

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