1fetchmail_selinux(8) SELinux Policy fetchmail fetchmail_selinux(8)
2
3
4
6 fetchmail_selinux - Security Enhanced Linux Policy for the fetchmail
7 processes
8
10 Security-Enhanced Linux secures the fetchmail processes via flexible
11 mandatory access control.
12
13 The fetchmail processes execute with the fetchmail_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
16
17 For example:
18
19 ps -eZ | grep fetchmail_t
20
21
22
24 The fetchmail_t SELinux type can be entered via the fetchmail_exec_t
25 file type.
26
27 The default entrypoint paths for the fetchmail_t domain are the follow‐
28 ing:
29
30 /usr/bin/fetchmail
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 fetchmail policy is very flexible allowing users to setup their fetch‐
40 mail processes in as secure a method as possible.
41
42 The following process types are defined for fetchmail:
43
44 fetchmail_t
45
46 Note: semanage permissive -a fetchmail_t can be used to make the
47 process type fetchmail_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. fetch‐
54 mail policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run fetchmail with the tightest access
56 possible.
57
58
59
60 If you want to allow all daemons to write corefiles to /, you must turn
61 on the allow_daemons_dump_core boolean. Disabled by default.
62
63 setsebool -P allow_daemons_dump_core 1
64
65
66
67 If you want to allow all daemons to use tcp wrappers, you must turn on
68 the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
69
70 setsebool -P allow_daemons_use_tcp_wrapper 1
71
72
73
74 If you want to allow all daemons the ability to read/write terminals,
75 you must turn on the allow_daemons_use_tty boolean. Disabled by
76 default.
77
78 setsebool -P allow_daemons_use_tty 1
79
80
81
82 If you want to allow all domains to use other domains file descriptors,
83 you must turn on the allow_domain_fd_use boolean. Enabled by default.
84
85 setsebool -P allow_domain_fd_use 1
86
87
88
89 If you want to allow confined applications to run with kerberos, you
90 must turn on the allow_kerberos boolean. Enabled by default.
91
92 setsebool -P allow_kerberos 1
93
94
95
96 If you want to allow sysadm to debug or ptrace all processes, you must
97 turn on the allow_ptrace boolean. Disabled by default.
98
99 setsebool -P allow_ptrace 1
100
101
102
103 If you want to enable cluster mode for daemons, you must turn on the
104 daemons_enable_cluster_mode boolean. Disabled by default.
105
106 setsebool -P daemons_enable_cluster_mode 1
107
108
109
110 If you want to allow all domains to have the kernel load modules, you
111 must turn on the domain_kernel_load_modules boolean. Disabled by
112 default.
113
114 setsebool -P domain_kernel_load_modules 1
115
116
117
118 If you want to allow all domains to execute in fips_mode, you must turn
119 on the fips_mode boolean. Enabled by default.
120
121 setsebool -P fips_mode 1
122
123
124
125 If you want to enable reading of urandom for all domains, you must turn
126 on the global_ssp boolean. Disabled by default.
127
128 setsebool -P global_ssp 1
129
130
131
132 If you want to enable support for upstart as the init program, you must
133 turn on the init_upstart boolean. Enabled by default.
134
135 setsebool -P init_upstart 1
136
137
138
140 The SELinux process type fetchmail_t can manage files labeled with the
141 following file types. The paths listed are the default paths for these
142 file types. Note the processes UID still need to have DAC permissions.
143
144 cluster_conf_t
145
146 /etc/cluster(/.*)?
147
148 cluster_var_lib_t
149
150 /var/lib(64)?/openais(/.*)?
151 /var/lib(64)?/pengine(/.*)?
152 /var/lib(64)?/corosync(/.*)?
153 /usr/lib(64)?/heartbeat(/.*)?
154 /var/lib(64)?/heartbeat(/.*)?
155 /var/lib(64)?/pacemaker(/.*)?
156 /var/lib/cluster(/.*)?
157
158 cluster_var_run_t
159
160 /var/run/crm(/.*)?
161 /var/run/cman_.*
162 /var/run/rsctmp(/.*)?
163 /var/run/aisexec.*
164 /var/run/heartbeat(/.*)?
165 /var/run/cpglockd.pid
166 /var/run/corosync.pid
167 /var/run/rgmanager.pid
168 /var/run/cluster/rgmanager.sk
169
170 fetchmail_uidl_cache_t
171
172 /var/mail/.fetchmail-UIDL-cache
173
174 fetchmail_var_run_t
175
176 /var/run/fetchmail/.*
177
178 initrc_tmp_t
179
180
181 mnt_t
182
183 /mnt(/[^/]*)
184 /mnt(/[^/]*)?
185 /rhev(/[^/]*)?
186 /media(/[^/]*)
187 /media(/[^/]*)?
188 /etc/rhgb(/.*)?
189 /media/.hal-.*
190 /net
191 /afs
192 /rhev
193 /misc
194
195 root_t
196
197 /
198 /initrd
199
200 sendmail_log_t
201
202 /var/log/mail(/.*)?
203 /var/log/sendmail.st.*
204
205 tmp_t
206
207 /tmp
208 /usr/tmp
209 /var/tmp
210 /tmp-inst
211 /var/tmp-inst
212 /var/tmp/vi.recover
213
214
216 SELinux requires files to have an extended attribute to define the file
217 type.
218
219 You can see the context of a file using the -Z option to ls
220
221 Policy governs the access confined processes have to these files.
222 SELinux fetchmail policy is very flexible allowing users to setup their
223 fetchmail processes in as secure a method as possible.
224
225 STANDARD FILE CONTEXT
226
227 SELinux defines the file context types for the fetchmail, if you wanted
228 to store files with these types in a diffent paths, you need to execute
229 the semanage command to sepecify alternate labeling and then use
230 restorecon to put the labels on disk.
231
232 semanage fcontext -a -t fetchmail_var_run_t '/srv/myfetchmail_con‐
233 tent(/.*)?'
234 restorecon -R -v /srv/myfetchmail_content
235
236 Note: SELinux often uses regular expressions to specify labels that
237 match multiple files.
238
239 The following file types are defined for fetchmail:
240
241
242
243 fetchmail_etc_t
244
245 - Set files with the fetchmail_etc_t type, if you want to store fetch‐
246 mail files in the /etc directories.
247
248
249
250 fetchmail_exec_t
251
252 - Set files with the fetchmail_exec_t type, if you want to transition
253 an executable to the fetchmail_t domain.
254
255
256
257 fetchmail_uidl_cache_t
258
259 - Set files with the fetchmail_uidl_cache_t type, if you want to store
260 the files under the /var/cache directory.
261
262
263
264 fetchmail_var_run_t
265
266 - Set files with the fetchmail_var_run_t type, if you want to store the
267 fetchmail files under the /run or /var/run directory.
268
269
270
271 Note: File context can be temporarily modified with the chcon command.
272 If you want to permanently change the file context you need to use the
273 semanage fcontext command. This will modify the SELinux labeling data‐
274 base. You will need to use restorecon to apply the labels.
275
276
278 semanage fcontext can also be used to manipulate default file context
279 mappings.
280
281 semanage permissive can also be used to manipulate whether or not a
282 process type is permissive.
283
284 semanage module can also be used to enable/disable/install/remove pol‐
285 icy modules.
286
287 semanage boolean can also be used to manipulate the booleans
288
289
290 system-config-selinux is a GUI tool available to customize SELinux pol‐
291 icy settings.
292
293
295 This manual page was auto-generated using sepolicy manpage .
296
297
299 selinux(8), fetchmail(8), semanage(8), restorecon(8), chcon(1) , setse‐
300 bool(8)
301
302
303
304fetchmail 15-06-03 fetchmail_selinux(8)