postfix_postqueue_selinux(8)

1postfix_postqueue_selinuSxE(L8i)nux Policy postfix_postqpuoesutefix_postqueue_selinux(8)
2
3
4

NAME

6       postfix_postqueue_selinux  -  Security  Enhanced  Linux  Policy for the
7       postfix_postqueue processes
8

DESCRIPTION

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

ENTRYPOINTS

24       The  postfix_postqueue_t  SELinux  type  can  be  entered via the post‐
25       fix_postqueue_exec_t file type.
26
27       The default entrypoint paths for the postfix_postqueue_t domain are the
28       following:
29
30       /usr/sbin/postqueue
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_postqueue policy is very flexible allowing users to setup their
40       postfix_postqueue processes in as secure a method as possible.
41
42       The following process types are defined for postfix_postqueue:
43
44       postfix_postqueue_t
45
46       Note: semanage permissive -a postfix_postqueue_t can be  used  to  make
47       the  process type postfix_postqueue_t permissive. SELinux does not deny
48       access to permissive process types, but the AVC (SELinux denials)  mes‐
49       sages are still generated.
50
51

BOOLEANS

53       SELinux  policy  is customizable based on least access required.  post‐
54       fix_postqueue policy is extremely flexible  and  has  several  booleans
55       that  allow you to manipulate the policy and run postfix_postqueue with
56       the tightest access possible.
57
58
59
60       If you want to allow users to resolve user passwd entries directly from
61       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
62       gin_nsswitch_use_ldap boolean. Disabled by default.
63
64       setsebool -P authlogin_nsswitch_use_ldap 1
65
66
67
68       If you want to deny any process from ptracing or  debugging  any  other
69       processes,  you  must  turn  on  the  deny_ptrace  boolean.  Enabled by
70       default.
71
72       setsebool -P deny_ptrace 1
73
74
75
76       If you want to allow any process  to  mmap  any  file  on  system  with
77       attribute  file_type,  you must turn on the domain_can_mmap_files bool‐
78       ean. Enabled by default.
79
80       setsebool -P domain_can_mmap_files 1
81
82
83
84       If you want to allow all domains write to kmsg_device, while kernel  is
85       executed  with  systemd.log_target=kmsg parameter, you must turn on the
86       domain_can_write_kmsg boolean. Disabled by default.
87
88       setsebool -P domain_can_write_kmsg 1
89
90
91
92       If you want to allow all domains to use other domains file descriptors,
93       you must turn on the domain_fd_use boolean. Enabled by default.
94
95       setsebool -P domain_fd_use 1
96
97
98
99       If  you  want to allow all domains to have the kernel load modules, you
100       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
101       default.
102
103       setsebool -P domain_kernel_load_modules 1
104
105
106
107       If you want to allow all domains to execute in fips_mode, you must turn
108       on the fips_mode boolean. Enabled by default.
109
110       setsebool -P fips_mode 1
111
112
113
114       If you want to determine whether Gitosis can send mail, you  must  turn
115       on the gitosis_can_sendmail boolean. Disabled by default.
116
117       setsebool -P gitosis_can_sendmail 1
118
119
120
121       If you want to enable reading of urandom for all domains, you must turn
122       on the global_ssp boolean. Disabled by default.
123
124       setsebool -P global_ssp 1
125
126
127
128       If you want to allow http daemon to send mail, you  must  turn  on  the
129       httpd_can_sendmail boolean. Disabled by default.
130
131       setsebool -P httpd_can_sendmail 1
132
133
134
135       If  you  want  to allow confined applications to run with kerberos, you
136       must turn on the kerberos_enabled boolean. Enabled by default.
137
138       setsebool -P kerberos_enabled 1
139
140
141
142       If you want to allow system to run with  NIS,  you  must  turn  on  the
143       nis_enabled boolean. Disabled by default.
144
145       setsebool -P nis_enabled 1
146
147
148
149       If  you  want to allow confined applications to use nscd shared memory,
150       you must turn on the nscd_use_shm boolean. Disabled by default.
151
152       setsebool -P nscd_use_shm 1
153
154
155
156       If you want to allow Redis to run redis-sentinal notification  scripts,
157       you must turn on the redis_enable_notify boolean. Disabled by default.
158
159       setsebool -P redis_enable_notify 1
160
161
162

MANAGED FILES

164       The  SELinux  process type postfix_postqueue_t can manage files labeled
165       with the following file types.  The paths listed are the default  paths
166       for  these  file  types.  Note the processes UID still need to have DAC
167       permissions.
168
169       anon_inodefs_t
170
171
172       arpwatch_tmp_t
173
174
175       postfix_var_run_t
176
177            /var/spool/postfix/pid/.*
178
179

FILE CONTEXTS

181       SELinux requires files to have an extended attribute to define the file
182       type.
183
184       You can see the context of a file using the -Z option to ls
185
186       Policy  governs  the  access  confined  processes  have to these files.
187       SELinux postfix_postqueue policy is very  flexible  allowing  users  to
188       setup their postfix_postqueue processes in as secure a method as possi‐
189       ble.
190
191       The following file types are defined for postfix_postqueue:
192
193
194
195       postfix_postqueue_exec_t
196
197       - Set files with the postfix_postqueue_exec_t  type,  if  you  want  to
198       transition an executable to the postfix_postqueue_t domain.
199
200
201
202       Note:  File context can be temporarily modified with the chcon command.
203       If you want to permanently change the file context you need to use  the
204       semanage fcontext command.  This will modify the SELinux labeling data‐
205       base.  You will need to use restorecon to apply the labels.
206
207

COMMANDS

209       semanage fcontext can also be used to manipulate default  file  context
210       mappings.
211
212       semanage  permissive  can  also  be used to manipulate whether or not a
213       process type is permissive.
214
215       semanage module can also be used to enable/disable/install/remove  pol‐
216       icy modules.
217
218       semanage boolean can also be used to manipulate the booleans
219
220
221       system-config-selinux is a GUI tool available to customize SELinux pol‐
222       icy settings.
223
224

AUTHOR

226       This manual page was auto-generated using sepolicy manpage .
227
228