1mscan_selinux(8) SELinux Policy mscan mscan_selinux(8)
2
3
4
6 mscan_selinux - Security Enhanced Linux Policy for the mscan processes
7
9 Security-Enhanced Linux secures the mscan processes via flexible manda‐
10 tory access control.
11
12 The mscan processes execute with the mscan_t SELinux type. You can
13 check if you have these processes running by executing the ps command
14 with the -Z qualifier.
15
16 For example:
17
18 ps -eZ | grep mscan_t
19
20
21
23 The mscan_t SELinux type can be entered via the mscan_exec_t file type.
24
25 The default entrypoint paths for the mscan_t domain are the following:
26
27 /usr/sbin/MailScanner
28
30 SELinux defines process types (domains) for each process running on the
31 system
32
33 You can see the context of a process using the -Z option to ps
34
35 Policy governs the access confined processes have to files. SELinux
36 mscan policy is very flexible allowing users to setup their mscan pro‐
37 cesses in as secure a method as possible.
38
39 The following process types are defined for mscan:
40
41 mscan_t
42
43 Note: semanage permissive -a mscan_t can be used to make the process
44 type mscan_t permissive. SELinux does not deny access to permissive
45 process types, but the AVC (SELinux denials) messages are still gener‐
46 ated.
47
48
50 SELinux policy is customizable based on least access required. mscan
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run mscan with the tightest access possible.
53
54
55
56 If you want to dontaudit all daemons scheduling requests (setsched,
57 sys_nice), you must turn on the daemons_dontaudit_scheduling boolean.
58 Enabled by default.
59
60 setsebool -P daemons_dontaudit_scheduling 1
61
62
63
64 If you want to allow all domains to execute in fips_mode, you must turn
65 on the fips_mode boolean. Enabled by default.
66
67 setsebool -P fips_mode 1
68
69
70
71 If you want to allow system to run with NIS, you must turn on the
72 nis_enabled boolean. Disabled by default.
73
74 setsebool -P nis_enabled 1
75
76
77
79 The SELinux process type mscan_t can manage files labeled with the fol‐
80 lowing file types. The paths listed are the default paths for these
81 file types. Note the processes UID still need to have DAC permissions.
82
83 antivirus_var_run_t
84
85 /var/run/clamd.*
86 /var/run/clamav.*
87 /var/run/amavis(d)?(/.*)?
88 /var/run/amavis(d)?/clamd.pid
89 /var/run/amavisd-snmp-subagent.pid
90
91 cluster_conf_t
92
93 /etc/cluster(/.*)?
94
95 cluster_var_lib_t
96
97 /var/lib/pcsd(/.*)?
98 /var/lib/cluster(/.*)?
99 /var/lib/openais(/.*)?
100 /var/lib/pengine(/.*)?
101 /var/lib/corosync(/.*)?
102 /usr/lib/heartbeat(/.*)?
103 /var/lib/heartbeat(/.*)?
104 /var/lib/pacemaker(/.*)?
105
106 cluster_var_run_t
107
108 /var/run/crm(/.*)?
109 /var/run/cman_.*
110 /var/run/rsctmp(/.*)?
111 /var/run/aisexec.*
112 /var/run/heartbeat(/.*)?
113 /var/run/pcsd-ruby.socket
114 /var/run/corosync-qnetd(/.*)?
115 /var/run/corosync-qdevice(/.*)?
116 /var/run/corosync.pid
117 /var/run/cpglockd.pid
118 /var/run/rgmanager.pid
119 /var/run/cluster/rgmanager.sk
120
121 krb5_host_rcache_t
122
123 /var/tmp/krb5_0.rcache2
124 /var/cache/krb5rcache(/.*)?
125 /var/tmp/nfs_0
126 /var/tmp/DNS_25
127 /var/tmp/host_0
128 /var/tmp/imap_0
129 /var/tmp/HTTP_23
130 /var/tmp/HTTP_48
131 /var/tmp/ldap_55
132 /var/tmp/ldap_487
133 /var/tmp/ldapmap1_0
134
135 mqueue_spool_t
136
137 /var/spool/(client)?mqueue(/.*)?
138 /var/spool/mqueue.in(/.*)?
139
140 mscan_spool_t
141
142 /var/spool/MailScanner(/.*)?
143
144 mscan_tmp_t
145
146
147 mscan_var_run_t
148
149 /var/run/MailScanner.pid
150
151 root_t
152
153 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
154 /
155 /initrd
156
157
159 SELinux requires files to have an extended attribute to define the file
160 type.
161
162 You can see the context of a file using the -Z option to ls
163
164 Policy governs the access confined processes have to these files.
165 SELinux mscan policy is very flexible allowing users to setup their
166 mscan processes in as secure a method as possible.
167
168 STANDARD FILE CONTEXT
169
170 SELinux defines the file context types for the mscan, if you wanted to
171 store files with these types in a different paths, you need to execute
172 the semanage command to specify alternate labeling and then use re‐
173 storecon to put the labels on disk.
174
175 semanage fcontext -a -t mscan_exec_t '/srv/mscan/content(/.*)?'
176 restorecon -R -v /srv/mymscan_content
177
178 Note: SELinux often uses regular expressions to specify labels that
179 match multiple files.
180
181 The following file types are defined for mscan:
182
183
184
185 mscan_etc_t
186
187 - Set files with the mscan_etc_t type, if you want to store mscan files
188 in the /etc directories.
189
190
191 Paths:
192 /etc/MailScanner(/.*)?, /etc/sysconfig/MailScanner, /etc/syscon‐
193 fig/update_spamassassin
194
195
196 mscan_exec_t
197
198 - Set files with the mscan_exec_t type, if you want to transition an
199 executable to the mscan_t domain.
200
201
202
203 mscan_initrc_exec_t
204
205 - Set files with the mscan_initrc_exec_t type, if you want to transi‐
206 tion an executable to the mscan_initrc_t domain.
207
208
209
210 mscan_spool_t
211
212 - Set files with the mscan_spool_t type, if you want to store the mscan
213 files under the /var/spool directory.
214
215
216
217 mscan_tmp_t
218
219 - Set files with the mscan_tmp_t type, if you want to store mscan tem‐
220 porary files in the /tmp directories.
221
222
223
224 mscan_var_run_t
225
226 - Set files with the mscan_var_run_t type, if you want to store the
227 mscan files under the /run or /var/run directory.
228
229
230
231 Note: File context can be temporarily modified with the chcon command.
232 If you want to permanently change the file context you need to use the
233 semanage fcontext command. This will modify the SELinux labeling data‐
234 base. You will need to use restorecon to apply the labels.
235
236
238 semanage fcontext can also be used to manipulate default file context
239 mappings.
240
241 semanage permissive can also be used to manipulate whether or not a
242 process type is permissive.
243
244 semanage module can also be used to enable/disable/install/remove pol‐
245 icy modules.
246
247 semanage boolean can also be used to manipulate the booleans
248
249
250 system-config-selinux is a GUI tool available to customize SELinux pol‐
251 icy settings.
252
253
255 This manual page was auto-generated using sepolicy manpage .
256
257
259 selinux(8), mscan(8), semanage(8), restorecon(8), chcon(1), sepol‐
260 icy(8), setsebool(8)
261
262
263
264mscan 23-10-20 mscan_selinux(8)