mscan_selinux(8)

1mscan_selinux(8)             SELinux Policy mscan             mscan_selinux(8)
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NAME

6       mscan_selinux - Security Enhanced Linux Policy for the mscan processes
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DESCRIPTION

9       Security-Enhanced Linux secures the mscan processes via flexible manda‐
10       tory access control.
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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.
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16       For example:
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18       ps -eZ | grep mscan_t
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ENTRYPOINTS

23       The mscan_t SELinux type can be entered via the mscan_exec_t file type.
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25       The default entrypoint paths for the mscan_t domain are the following:
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27       /usr/sbin/MailScanner
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PROCESS TYPES

30       SELinux defines process types (domains) for each process running on the
31       system
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33       You can see the context of a process using the -Z option to ps
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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.
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39       The following process types are defined for mscan:
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41       mscan_t
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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.
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48

BOOLEANS

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.
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56       If you want to allow users to resolve user passwd entries directly from
57       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
58       gin_nsswitch_use_ldap boolean. Disabled by default.
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60       setsebool -P authlogin_nsswitch_use_ldap 1
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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.
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67       setsebool -P fips_mode 1
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71       If  you  want  to allow confined applications to run with kerberos, you
72       must turn on the kerberos_enabled boolean. Enabled by default.
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74       setsebool -P kerberos_enabled 1
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78       If you want to allow system to run with  NIS,  you  must  turn  on  the
79       nis_enabled boolean. Disabled by default.
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81       setsebool -P nis_enabled 1
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85       If  you  want to allow confined applications to use nscd shared memory,
86       you must turn on the nscd_use_shm boolean. Enabled by default.
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88       setsebool -P nscd_use_shm 1
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MANAGED FILES

93       The SELinux process type mscan_t can manage files labeled with the fol‐
94       lowing  file  types.   The paths listed are the default paths for these
95       file types.  Note the processes UID still need to have DAC permissions.
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97       antivirus_var_run_t
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99            /var/run/clamd.*
100            /var/run/clamav.*
101            /var/run/amavis(d)?(/.*)?
102            /var/run/amavis(d)?/clamd.pid
103            /var/run/amavisd-snmp-subagent.pid
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105       cluster_conf_t
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107            /etc/cluster(/.*)?
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109       cluster_var_lib_t
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111            /var/lib/pcsd(/.*)?
112            /var/lib/cluster(/.*)?
113            /var/lib/openais(/.*)?
114            /var/lib/pengine(/.*)?
115            /var/lib/corosync(/.*)?
116            /usr/lib/heartbeat(/.*)?
117            /var/lib/heartbeat(/.*)?
118            /var/lib/pacemaker(/.*)?
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120       cluster_var_run_t
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122            /var/run/crm(/.*)?
123            /var/run/cman_.*
124            /var/run/rsctmp(/.*)?
125            /var/run/aisexec.*
126            /var/run/heartbeat(/.*)?
127            /var/run/corosync-qnetd(/.*)?
128            /var/run/corosync-qdevice(/.*)?
129            /var/run/corosync.pid
130            /var/run/cpglockd.pid
131            /var/run/rgmanager.pid
132            /var/run/cluster/rgmanager.sk
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134       mqueue_spool_t
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136            /var/spool/(client)?mqueue(/.*)?
137            /var/spool/mqueue.in(/.*)?
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139       mscan_spool_t
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141            /var/spool/MailScanner(/.*)?
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143       mscan_tmp_t
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146       mscan_var_run_t
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148            /var/run/MailScanner.pid
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150       root_t
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152            /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
153            /
154            /initrd
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FILE CONTEXTS

158       SELinux requires files to have an extended attribute to define the file
159       type.
160
161       You can see the context of a file using the -Z option to ls
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163       Policy  governs  the  access  confined  processes  have to these files.
164       SELinux mscan policy is very flexible allowing  users  to  setup  their
165       mscan processes in as secure a method as possible.
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167       STANDARD FILE CONTEXT
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169       SELinux  defines the file context types for the mscan, if you wanted to
170       store files with these types in a diffent paths, you  need  to  execute
171       the  semanage  command  to  sepecify  alternate  labeling  and then use
172       restorecon to put the labels on disk.
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174       semanage fcontext -a -t mscan_var_run_t '/srv/mymscan_content(/.*)?'
175       restorecon -R -v /srv/mymscan_content
176
177       Note: SELinux often uses regular expressions  to  specify  labels  that
178       match multiple files.
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180       The following file types are defined for mscan:
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184       mscan_etc_t
185
186       - Set files with the mscan_etc_t type, if you want to store mscan files
187       in the /etc directories.
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189
190       Paths:
191            /etc/MailScanner(/.*)?,  /etc/sysconfig/MailScanner,  /etc/syscon‐
192            fig/update_spamassassin
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195       mscan_exec_t
196
197       -  Set  files  with the mscan_exec_t type, if you want to transition an
198       executable to the mscan_t domain.
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202       mscan_initrc_exec_t
203
204       - Set files with the mscan_initrc_exec_t type, if you want  to  transi‐
205       tion an executable to the mscan_initrc_t domain.
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209       mscan_spool_t
210
211       - Set files with the mscan_spool_t type, if you want to store the mscan
212       files under the /var/spool directory.
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216       mscan_tmp_t
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218       - Set files with the mscan_tmp_t type, if you want to store mscan  tem‐
219       porary files in the /tmp directories.
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223       mscan_var_run_t
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225       -  Set  files  with  the mscan_var_run_t type, if you want to store the
226       mscan files under the /run or /var/run directory.
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229
230       Note: File context can be temporarily modified with the chcon  command.
231       If  you want to permanently change the file context you need to use the
232       semanage fcontext command.  This will modify the SELinux labeling data‐
233       base.  You will need to use restorecon to apply the labels.
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COMMANDS

237       semanage  fcontext  can also be used to manipulate default file context
238       mappings.
239
240       semanage permissive can also be used to manipulate  whether  or  not  a
241       process type is permissive.
242
243       semanage  module can also be used to enable/disable/install/remove pol‐
244       icy modules.
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246       semanage boolean can also be used to manipulate the booleans
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248
249       system-config-selinux is a GUI tool available to customize SELinux pol‐
250       icy settings.
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AUTHOR

254       This manual page was auto-generated using sepolicy manpage .
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