1mscan_selinux(8) SELinux Policy mscan mscan_selinux(8)
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6 mscan_selinux - Security Enhanced Linux Policy for the mscan processes
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9 Security-Enhanced Linux secures the mscan processes via flexible manda‐
10 tory access control.
11 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 For example:
17 ps -eZ | grep mscan_t
19
23 The mscan_t SELinux type can be entered via the mscan_exec_t file type.
24 The default entrypoint paths for the mscan_t domain are the following:
26 /usr/sbin/MailScanner
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30 SELinux defines process types (domains) for each process running on the
31 system
32 You can see the context of a process using the -Z option to ps
34 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 The following process types are defined for mscan:
40 mscan_t
42 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
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 If you want to allow all domains to execute in fips_mode, you must turn
57 on the fips_mode boolean. Enabled by default.
58 setsebool -P fips_mode 1
60 If you want to allow system to run with NIS, you must turn on the
64 nis_enabled boolean. Disabled by default.
65 setsebool -P nis_enabled 1
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71 The SELinux process type mscan_t can manage files labeled with the fol‐
72 lowing file types. The paths listed are the default paths for these
73 file types. Note the processes UID still need to have DAC permissions.
74 antivirus_var_run_t
76 /var/run/clamd.*
78 /var/run/clamav.*
79 /var/run/amavis(d)?(/.*)?
80 /var/run/amavis(d)?/clamd.pid
81 /var/run/amavisd-snmp-subagent.pid
82 cluster_conf_t
84 /etc/cluster(/.*)?
86 cluster_var_lib_t
88 /var/lib/pcsd(/.*)?
90 /var/lib/cluster(/.*)?
91 /var/lib/openais(/.*)?
92 /var/lib/pengine(/.*)?
93 /var/lib/corosync(/.*)?
94 /usr/lib/heartbeat(/.*)?
95 /var/lib/heartbeat(/.*)?
96 /var/lib/pacemaker(/.*)?
97 cluster_var_run_t
99 /var/run/crm(/.*)?
101 /var/run/cman_.*
102 /var/run/rsctmp(/.*)?
103 /var/run/aisexec.*
104 /var/run/heartbeat(/.*)?
105 /var/run/pcsd-ruby.socket
106 /var/run/corosync-qnetd(/.*)?
107 /var/run/corosync-qdevice(/.*)?
108 /var/run/corosync.pid
109 /var/run/cpglockd.pid
110 /var/run/rgmanager.pid
111 /var/run/cluster/rgmanager.sk
112 krb5_host_rcache_t
114 /var/tmp/krb5_0.rcache2
116 /var/cache/krb5rcache(/.*)?
117 /var/tmp/nfs_0
118 /var/tmp/DNS_25
119 /var/tmp/host_0
120 /var/tmp/imap_0
121 /var/tmp/HTTP_23
122 /var/tmp/HTTP_48
123 /var/tmp/ldap_55
124 /var/tmp/ldap_487
125 /var/tmp/ldapmap1_0
126 mqueue_spool_t
128 /var/spool/(client)?mqueue(/.*)?
130 /var/spool/mqueue.in(/.*)?
131 mscan_spool_t
133 /var/spool/MailScanner(/.*)?
135 mscan_tmp_t
137 mscan_var_run_t
140 /var/run/MailScanner.pid
142 root_t
144 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
146 /
147 /initrd
148
151 SELinux requires files to have an extended attribute to define the file
152 type.
153 You can see the context of a file using the -Z option to ls
155 Policy governs the access confined processes have to these files.
157 SELinux mscan policy is very flexible allowing users to setup their
158 mscan processes in as secure a method as possible.
159 STANDARD FILE CONTEXT
161 SELinux defines the file context types for the mscan, if you wanted to
163 store files with these types in a diffent paths, you need to execute
164 the semanage command to specify alternate labeling and then use re‐
165 storecon to put the labels on disk.
166 semanage fcontext -a -t mscan_var_run_t '/srv/mymscan_content(/.*)?'
168 restorecon -R -v /srv/mymscan_content
169 Note: SELinux often uses regular expressions to specify labels that
171 match multiple files.
172 The following file types are defined for mscan:
174 mscan_etc_t
178 - Set files with the mscan_etc_t type, if you want to store mscan files
180 in the /etc directories.
181 Paths:
184 /etc/MailScanner(/.*)?, /etc/sysconfig/MailScanner, /etc/syscon‐
185 fig/update_spamassassin
186 mscan_exec_t
189 - Set files with the mscan_exec_t type, if you want to transition an
191 executable to the mscan_t domain.
192 mscan_initrc_exec_t
196 - Set files with the mscan_initrc_exec_t type, if you want to transi‐
198 tion an executable to the mscan_initrc_t domain.
199 mscan_spool_t
203 - Set files with the mscan_spool_t type, if you want to store the mscan
205 files under the /var/spool directory.
206 mscan_tmp_t
210 - Set files with the mscan_tmp_t type, if you want to store mscan tem‐
212 porary files in the /tmp directories.
213 mscan_var_run_t
217 - Set files with the mscan_var_run_t type, if you want to store the
219 mscan files under the /run or /var/run directory.
220 Note: File context can be temporarily modified with the chcon command.
224 If you want to permanently change the file context you need to use the
225 semanage fcontext command. This will modify the SELinux labeling data‐
226 base. You will need to use restorecon to apply the labels.
227
230 semanage fcontext can also be used to manipulate default file context
231 mappings.
232 semanage permissive can also be used to manipulate whether or not a
234 process type is permissive.
235 semanage module can also be used to enable/disable/install/remove pol‐
237 icy modules.
238 semanage boolean can also be used to manipulate the booleans
240 system-config-selinux is a GUI tool available to customize SELinux pol‐
243 icy settings.
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247 This manual page was auto-generated using sepolicy manpage .
248
251 selinux(8), mscan(8), semanage(8), restorecon(8), chcon(1), sepol‐
252 icy(8), setsebool(8)
253mscan 21-11-19 mscan_selinux(8)