postfix_qmgr_selinux(8)

1postfix_qmgr_selinux(8)   SELinux Policy postfix_qmgr  postfix_qmgr_selinux(8)
2
3
4

NAME

6       postfix_qmgr_selinux  -  Security  Enhanced  Linux Policy for the post‐
7       fix_qmgr processes
8

DESCRIPTION

10       Security-Enhanced Linux secures the postfix_qmgr processes via flexible
11       mandatory access control.
12
13       The  postfix_qmgr  processes  execute  with  the postfix_qmgr_t SELinux
14       type. You can check if you have these processes  running  by  executing
15       the ps command with the -Z qualifier.
16
17       For example:
18
19       ps -eZ | grep postfix_qmgr_t
20
21
22

ENTRYPOINTS

24       The   postfix_qmgr_t   SELinux  type  can  be  entered  via  the  post‐
25       fix_qmgr_exec_t file type.
26
27       The default entrypoint paths for the postfix_qmgr_t domain are the fol‐
28       lowing:
29
30       /usr/libexec/postfix/(n)?qmgr
31

PROCESS TYPES

33       SELinux defines process types (domains) for each process running on the
34       system
35
36       You can see the context of a process using the -Z option to ps
37
38       Policy governs the access confined processes have  to  files.   SELinux
39       postfix_qmgr  policy  is  very  flexible  allowing users to setup their
40       postfix_qmgr processes in as secure a method as possible.
41
42       The following process types are defined for postfix_qmgr:
43
44       postfix_qmgr_t
45
46       Note: semanage permissive -a postfix_qmgr_t can be  used  to  make  the
47       process type postfix_qmgr_t permissive. SELinux does not deny access to
48       permissive process types, but the AVC (SELinux  denials)  messages  are
49       still generated.
50
51

BOOLEANS

53       SELinux  policy  is customizable based on least access required.  post‐
54       fix_qmgr policy is extremely flexible and has several booleans that al‐
55       low you to manipulate the policy and run postfix_qmgr with the tightest
56       access possible.
57
58
59
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.
62
63       setsebool -P fips_mode 1
64
65
66
67       If  you  want  to  allow  system  to run with NIS, you must turn on the
68       nis_enabled boolean. Disabled by default.
69
70       setsebool -P nis_enabled 1
71
72
73

MANAGED FILES

75       The SELinux process type postfix_qmgr_t can manage files  labeled  with
76       the  following  file types.  The paths listed are the default paths for
77       these file types.  Note the processes UID still need to have  DAC  per‐
78       missions.
79
80       krb5_host_rcache_t
81
82            /var/tmp/krb5_0.rcache2
83            /var/cache/krb5rcache(/.*)?
84            /var/tmp/nfs_0
85            /var/tmp/DNS_25
86            /var/tmp/host_0
87            /var/tmp/imap_0
88            /var/tmp/HTTP_23
89            /var/tmp/HTTP_48
90            /var/tmp/ldap_55
91            /var/tmp/ldap_487
92            /var/tmp/ldapmap1_0
93
94       postfix_qmgr_tmp_t
95
96
97       postfix_spool_t
98
99            /var/spool/postfix.*
100            /var/spool/postfix/defer(/.*)?
101            /var/spool/postfix/flush(/.*)?
102            /var/spool/postfix/deferred(/.*)?
103            /var/spool/postfix/maildrop(/.*)?
104
105       postfix_var_run_t
106
107            /var/spool/postfix/pid/.*
108
109

FILE CONTEXTS

111       SELinux requires files to have an extended attribute to define the file
112       type.
113
114       You can see the context of a file using the -Z option to ls
115
116       Policy governs the access  confined  processes  have  to  these  files.
117       SELinux  postfix_qmgr  policy  is very flexible allowing users to setup
118       their postfix_qmgr processes in as secure a method as possible.
119
120       STANDARD FILE CONTEXT
121
122       SELinux defines the file context types for  the  postfix_qmgr,  if  you
123       wanted  to store files with these types in a diffent paths, you need to
124       execute the semanage command to sepecify alternate  labeling  and  then
125       use restorecon to put the labels on disk.
126
127       semanage  fcontext  -a  -t postfix_qmgr_tmp_t '/srv/mypostfix_qmgr_con‐
128       tent(/.*)?'
129       restorecon -R -v /srv/mypostfix_qmgr_content
130
131       Note: SELinux often uses regular expressions  to  specify  labels  that
132       match multiple files.
133
134       The following file types are defined for postfix_qmgr:
135
136
137
138       postfix_qmgr_exec_t
139
140       -  Set  files with the postfix_qmgr_exec_t type, if you want to transi‐
141       tion an executable to the postfix_qmgr_t domain.
142
143
144
145       postfix_qmgr_tmp_t
146
147       - Set files with the postfix_qmgr_tmp_t type,  if  you  want  to  store
148       postfix qmgr temporary files in the /tmp directories.
149
150
151
152       Note:  File context can be temporarily modified with the chcon command.
153       If you want to permanently change the file context you need to use  the
154       semanage fcontext command.  This will modify the SELinux labeling data‐
155       base.  You will need to use restorecon to apply the labels.
156
157

COMMANDS

159       semanage fcontext can also be used to manipulate default  file  context
160       mappings.
161
162       semanage  permissive  can  also  be used to manipulate whether or not a
163       process type is permissive.
164
165       semanage module can also be used to enable/disable/install/remove  pol‐
166       icy modules.
167
168       semanage boolean can also be used to manipulate the booleans
169
170
171       system-config-selinux is a GUI tool available to customize SELinux pol‐
172       icy settings.
173
174

AUTHOR

176       This manual page was auto-generated using sepolicy manpage .
177
178