1postfix_map_selinux(8) SELinux Policy postfix_map postfix_map_selinux(8)
2
3
4
6 postfix_map_selinux - Security Enhanced Linux Policy for the post‐
7 fix_map processes
8
10 Security-Enhanced Linux secures the postfix_map processes via flexible
11 mandatory access control.
12
13 The postfix_map processes execute with the postfix_map_t SELinux type.
14 You can check if you have these processes running by executing the ps
15 command with the -Z qualifier.
16
17 For example:
18
19 ps -eZ | grep postfix_map_t
20
21
22
24 The postfix_map_t SELinux type can be entered via the post‐
25 fix_map_exec_t file type.
26
27 The default entrypoint paths for the postfix_map_t domain are the fol‐
28 lowing:
29
30 /usr/sbin/postmap
31
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_map policy is very flexible allowing users to setup their post‐
40 fix_map processes in as secure a method as possible.
41
42 The following process types are defined for postfix_map:
43
44 postfix_map_t
45
46 Note: semanage permissive -a postfix_map_t can be used to make the
47 process type postfix_map_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
51
53 SELinux policy is customizable based on least access required. post‐
54 fix_map policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run postfix_map with the tight‐
56 est 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
68 The SELinux process type postfix_map_t can manage files labeled with
69 the following file types. The paths listed are the default paths for
70 these file types. Note the processes UID still need to have DAC per‐
71 missions.
72
73 mailman_data_t
74
75 /etc/mailman.*
76 /var/lib/mailman(/.*)?
77 /var/spool/mailman.*
78
79 postfix_etc_t
80
81 /etc/postfix.*
82
83
85 SELinux requires files to have an extended attribute to define the file
86 type.
87
88 You can see the context of a file using the -Z option to ls
89
90 Policy governs the access confined processes have to these files.
91 SELinux postfix_map policy is very flexible allowing users to setup
92 their postfix_map processes in as secure a method as possible.
93
94 STANDARD FILE CONTEXT
95
96 SELinux defines the file context types for the postfix_map, if you
97 wanted to store files with these types in a diffent paths, you need to
98 execute the semanage command to sepecify alternate labeling and then
99 use restorecon to put the labels on disk.
100
101 semanage fcontext -a -t postfix_map_tmp_t '/srv/mypostfix_map_con‐
102 tent(/.*)?'
103 restorecon -R -v /srv/mypostfix_map_content
104
105 Note: SELinux often uses regular expressions to specify labels that
106 match multiple files.
107
108 The following file types are defined for postfix_map:
109
110
111
112 postfix_map_exec_t
113
114 - Set files with the postfix_map_exec_t type, if you want to transition
115 an executable to the postfix_map_t domain.
116
117
118
119 postfix_map_tmp_t
120
121 - Set files with the postfix_map_tmp_t type, if you want to store post‐
122 fix map temporary files in the /tmp directories.
123
124
125
126 Note: File context can be temporarily modified with the chcon command.
127 If you want to permanently change the file context you need to use the
128 semanage fcontext command. This will modify the SELinux labeling data‐
129 base. You will need to use restorecon to apply the labels.
130
131
133 semanage fcontext can also be used to manipulate default file context
134 mappings.
135
136 semanage permissive can also be used to manipulate whether or not a
137 process type is permissive.
138
139 semanage module can also be used to enable/disable/install/remove pol‐
140 icy modules.
141
142 semanage boolean can also be used to manipulate the booleans
143
144
145 system-config-selinux is a GUI tool available to customize SELinux pol‐
146 icy settings.
147
148
150 This manual page was auto-generated using sepolicy manpage .
151
152
154 selinux(8), postfix_map(8), semanage(8), restorecon(8), chcon(1),
155 sepolicy(8), setsebool(8)
156
157
158
159postfix_map 20-05-05 postfix_map_selinux(8)