postfix_master_selinux(8)

1postfix_master_selinux(8)SELinux Policy postfix_masterpostfix_master_selinux(8)
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NAME

6       postfix_master_selinux  -  Security Enhanced Linux Policy for the post‐
7       fix_master processes
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DESCRIPTION

10       Security-Enhanced Linux secures the postfix_master processes via flexi‐
11       ble mandatory access control.
12
13       The  postfix_master processes execute with the postfix_master_t SELinux
14       type. You can check if you have these processes  running  by  executing
15       the ps command with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep postfix_master_t
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ENTRYPOINTS

24       The  postfix_master_t  SELinux type can be entered via the postfix_mas‐
25       ter_exec_t file type.
26
27       The default entrypoint paths for the postfix_master_t  domain  are  the
28       following:
29
30       /usr/sbin/postcat,         /usr/sbin/postfix,        /usr/sbin/postlog,
31       /usr/sbin/postkick,      /usr/sbin/postlock,       /usr/sbin/postalias,
32       /usr/sbin/postsuper, /usr/libexec/postfix/master
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PROCESS TYPES

35       SELinux defines process types (domains) for each process running on the
36       system
37
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       postfix_master  policy  is  very flexible allowing users to setup their
42       postfix_master processes in as secure a method as possible.
43
44       The following process types are defined for postfix_master:
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46       postfix_master_t
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48       Note: semanage permissive -a postfix_master_t can be used to  make  the
49       process  type postfix_master_t permissive. SELinux does not deny access
50       to 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.  post‐
56       fix_master policy is extremely flexible and has several  booleans  that
57       allow  you  to  manipulate  the  policy and run postfix_master with the
58       tightest access possible.
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61
62       If you want to allow all daemons to write corefiles to /, you must turn
63       on the allow_daemons_dump_core boolean. Disabled by default.
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65       setsebool -P allow_daemons_dump_core 1
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68
69       If  you want to allow all daemons to use tcp wrappers, you must turn on
70       the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
71
72       setsebool -P allow_daemons_use_tcp_wrapper 1
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76       If you want to allow all daemons the ability to  read/write  terminals,
77       you  must  turn  on  the  allow_daemons_use_tty  boolean.  Disabled  by
78       default.
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80       setsebool -P allow_daemons_use_tty 1
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84       If you want to allow all domains to use other domains file descriptors,
85       you must turn on the allow_domain_fd_use boolean. Enabled by default.
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87       setsebool -P allow_domain_fd_use 1
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91       If  you  want  to allow confined applications to run with kerberos, you
92       must turn on the allow_kerberos boolean. Enabled by default.
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94       setsebool -P allow_kerberos 1
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98       If you want to allow sysadm to debug or ptrace all processes, you  must
99       turn on the allow_ptrace boolean. Disabled by default.
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101       setsebool -P allow_ptrace 1
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104
105       If  you  want  to  allow  system  to run with NIS, you must turn on the
106       allow_ypbind boolean. Disabled by default.
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108       setsebool -P allow_ypbind 1
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110
111
112       If you want to enable cluster mode for daemons, you must  turn  on  the
113       daemons_enable_cluster_mode boolean. Disabled by default.
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115       setsebool -P daemons_enable_cluster_mode 1
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118
119       If  you  want to allow all domains to have the kernel load modules, you
120       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
121       default.
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123       setsebool -P domain_kernel_load_modules 1
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127       If you want to allow all domains to execute in fips_mode, you must turn
128       on the fips_mode boolean. Enabled by default.
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130       setsebool -P fips_mode 1
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134       If you want to enable reading of urandom for all domains, you must turn
135       on the global_ssp boolean. Disabled by default.
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137       setsebool -P global_ssp 1
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141       If you want to enable support for upstart as the init program, you must
142       turn on the init_upstart boolean. Enabled by default.
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144       setsebool -P init_upstart 1
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148       If you want to allow confined applications to use nscd  shared  memory,
149       you must turn on the nscd_use_shm boolean. Enabled by default.
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151       setsebool -P nscd_use_shm 1
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MANAGED FILES

156       The SELinux process type postfix_master_t can manage files labeled with
157       the following file types.  The paths listed are the default  paths  for
158       these  file  types.  Note the processes UID still need to have DAC per‐
159       missions.
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161       anon_inodefs_t
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164       cluster_conf_t
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166            /etc/cluster(/.*)?
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168       cluster_var_lib_t
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170            /var/lib(64)?/openais(/.*)?
171            /var/lib(64)?/pengine(/.*)?
172            /var/lib(64)?/corosync(/.*)?
173            /usr/lib(64)?/heartbeat(/.*)?
174            /var/lib(64)?/heartbeat(/.*)?
175            /var/lib(64)?/pacemaker(/.*)?
176            /var/lib/cluster(/.*)?
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178       cluster_var_run_t
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180            /var/run/crm(/.*)?
181            /var/run/cman_.*
182            /var/run/rsctmp(/.*)?
183            /var/run/aisexec.*
184            /var/run/heartbeat(/.*)?
185            /var/run/cpglockd.pid
186            /var/run/corosync.pid
187            /var/run/rgmanager.pid
188            /var/run/cluster/rgmanager.sk
189
190       etc_aliases_t
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192            /etc/postfix/aliases.*
193            /etc/aliases
194            /etc/aliases.db
195            /etc/mail/aliases
196            /etc/mail/aliases.db
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198       initrc_tmp_t
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201       mailman_data_t
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203            /etc/mailman(/.*)?
204            /var/lib/mailman(/.*)?
205            /var/spool/mailman(/.*)?
206
207       mnt_t
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209            /mnt(/[^/]*)
210            /mnt(/[^/]*)?
211            /rhev(/[^/]*)?
212            /media(/[^/]*)
213            /media(/[^/]*)?
214            /etc/rhgb(/.*)?
215            /media/.hal-.*
216            /net
217            /afs
218            /rhev
219            /misc
220
221       postfix_data_t
222
223            /var/lib/postfix.*
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225       postfix_etc_t
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227            /etc/postfix.*
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229       postfix_prng_t
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231            /etc/postfix/prng_exch
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233       postfix_spool_flush_t
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235            /var/spool/postfix/flush(/.*)?
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237       postfix_spool_maildrop_t
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239            /var/spool/postfix/defer(/.*)?
240            /var/spool/postfix/deferred(/.*)?
241            /var/spool/postfix/maildrop(/.*)?
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243       postfix_spool_t
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245            /var/spool/postfix.*
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247       postfix_var_run_t
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249            /var/spool/postfix/pid/.*
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251       root_t
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253            /
254            /initrd
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256       tmp_t
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258            /tmp
259            /usr/tmp
260            /var/tmp
261            /tmp-inst
262            /var/tmp-inst
263            /var/tmp/vi.recover
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FILE CONTEXTS

267       SELinux requires files to have an extended attribute to define the file
268       type.
269
270       You can see the context of a file using the -Z option to ls
271
272       Policy  governs  the  access  confined  processes  have to these files.
273       SELinux postfix_master policy is very flexible allowing users to  setup
274       their postfix_master processes in as secure a method as possible.
275
276       The following file types are defined for postfix_master:
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280       postfix_master_exec_t
281
282       - Set files with the postfix_master_exec_t type, if you want to transi‐
283       tion an executable to the postfix_master_t domain.
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285
286       Paths:
287            /usr/sbin/postcat,      /usr/sbin/postfix,      /usr/sbin/postlog,
288            /usr/sbin/postkick,    /usr/sbin/postlock,    /usr/sbin/postalias,
289            /usr/sbin/postsuper, /usr/libexec/postfix/master
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291
292       Note: File context can be temporarily modified with the chcon  command.
293       If  you want to permanently change the file context you need to use the
294       semanage fcontext command.  This will modify the SELinux labeling data‐
295       base.  You will need to use restorecon to apply the labels.
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COMMANDS

299       semanage  fcontext  can also be used to manipulate default file context
300       mappings.
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302       semanage permissive can also be used to manipulate  whether  or  not  a
303       process type is permissive.
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305       semanage  module can also be used to enable/disable/install/remove pol‐
306       icy modules.
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308       semanage boolean can also be used to manipulate the booleans
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311       system-config-selinux is a GUI tool available to customize SELinux pol‐
312       icy settings.
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AUTHOR

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