snort_selinux(8)

1snort_selinux(8)             SELinux Policy snort             snort_selinux(8)
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NAME

6       snort_selinux - Security Enhanced Linux Policy for the snort processes
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DESCRIPTION

9       Security-Enhanced Linux secures the snort processes via flexible manda‐
10       tory access control.
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12       The snort processes execute with the  snort_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 snort_t
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ENTRYPOINTS

23       The snort_t SELinux type can be entered via the snort_exec_t file type.
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25       The default entrypoint paths for the snort_t domain are the following:
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27       /usr/bin/snort, /usr/sbin/snort, /usr/sbin/snort-plain
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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       snort policy is very flexible allowing users to setup their snort  pro‐
37       cesses in as secure a method as possible.
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39       The following process types are defined for snort:
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41       snort_t
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43       Note:  semanage  permissive  -a snort_t can be used to make the process
44       type snort_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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BOOLEANS

50       SELinux policy is customizable based on least access  required.   snort
51       policy is extremely flexible and has several booleans that allow you to
52       manipulate the policy and run snort 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 daemons to write corefiles to /, you must turn
65       on the daemons_dump_core boolean. Disabled by default.
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67       setsebool -P daemons_dump_core 1
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71       If  you  want  to enable cluster mode for daemons, you must turn on the
72       daemons_enable_cluster_mode boolean. Enabled by default.
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74       setsebool -P daemons_enable_cluster_mode 1
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78       If you want to allow all daemons to use tcp wrappers, you must turn  on
79       the daemons_use_tcp_wrapper boolean. Disabled by default.
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81       setsebool -P daemons_use_tcp_wrapper 1
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85       If  you  want to allow all daemons the ability to read/write terminals,
86       you must turn on the daemons_use_tty boolean. Disabled by default.
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88       setsebool -P daemons_use_tty 1
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92       If you want to deny any process from ptracing or  debugging  any  other
93       processes,  you  must  turn  on  the  deny_ptrace  boolean.  Enabled by
94       default.
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96       setsebool -P deny_ptrace 1
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100       If you want to allow any process  to  mmap  any  file  on  system  with
101       attribute  file_type,  you must turn on the domain_can_mmap_files bool‐
102       ean. Enabled by default.
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104       setsebool -P domain_can_mmap_files 1
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108       If you want to allow all domains write to kmsg_device, while kernel  is
109       executed  with  systemd.log_target=kmsg parameter, you must turn on the
110       domain_can_write_kmsg boolean. Disabled by default.
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112       setsebool -P domain_can_write_kmsg 1
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116       If you want to allow all domains to use other domains file descriptors,
117       you must turn on the domain_fd_use boolean. Enabled by default.
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119       setsebool -P domain_fd_use 1
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122
123       If  you  want to allow all domains to have the kernel load modules, you
124       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
125       default.
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127       setsebool -P domain_kernel_load_modules 1
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131       If you want to allow all domains to execute in fips_mode, you must turn
132       on the fips_mode boolean. Enabled by default.
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134       setsebool -P fips_mode 1
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138       If you want to enable reading of urandom for all domains, you must turn
139       on the global_ssp boolean. Disabled by default.
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141       setsebool -P global_ssp 1
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145       If  you  want  to allow confined applications to run with kerberos, you
146       must turn on the kerberos_enabled boolean. Enabled by default.
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148       setsebool -P kerberos_enabled 1
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152       If you want to allow system to run with  NIS,  you  must  turn  on  the
153       nis_enabled boolean. Disabled by default.
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155       setsebool -P nis_enabled 1
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159       If  you  want to allow confined applications to use nscd shared memory,
160       you must turn on the nscd_use_shm boolean. Disabled by default.
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162       setsebool -P nscd_use_shm 1
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MANAGED FILES

167       The SELinux process type snort_t can manage files labeled with the fol‐
168       lowing  file  types.   The paths listed are the default paths for these
169       file types.  Note the processes UID still need to have DAC permissions.
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171       cluster_conf_t
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173            /etc/cluster(/.*)?
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175       cluster_var_lib_t
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177            /var/lib/pcsd(/.*)?
178            /var/lib/cluster(/.*)?
179            /var/lib/openais(/.*)?
180            /var/lib/pengine(/.*)?
181            /var/lib/corosync(/.*)?
182            /usr/lib/heartbeat(/.*)?
183            /var/lib/heartbeat(/.*)?
184            /var/lib/pacemaker(/.*)?
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186       cluster_var_run_t
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188            /var/run/crm(/.*)?
189            /var/run/cman_.*
190            /var/run/rsctmp(/.*)?
191            /var/run/aisexec.*
192            /var/run/heartbeat(/.*)?
193            /var/run/corosync-qnetd(/.*)?
194            /var/run/corosync-qdevice(/.*)?
195            /var/run/cpglockd.pid
196            /var/run/corosync.pid
197            /var/run/rgmanager.pid
198            /var/run/cluster/rgmanager.sk
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200       prelude_spool_t
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202            /var/spool/prelude(/.*)?
203            /var/spool/prelude-manager(/.*)?
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205       root_t
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207            /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
208            /
209            /initrd
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211       snort_log_t
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213            /var/log/snort(/.*)?
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215       snort_tmp_t
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218       snort_var_run_t
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220            /var/run/snort.*
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FILE CONTEXTS

224       SELinux requires files to have an extended attribute to define the file
225       type.
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227       You can see the context of a file using the -Z option to ls
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229       Policy  governs  the  access  confined  processes  have to these files.
230       SELinux snort policy is very flexible allowing  users  to  setup  their
231       snort processes in as secure a method as possible.
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233       STANDARD FILE CONTEXT
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235       SELinux  defines the file context types for the snort, if you wanted to
236       store files with these types in a diffent paths, you  need  to  execute
237       the  semanage  command  to  sepecify  alternate  labeling  and then use
238       restorecon to put the labels on disk.
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240       semanage fcontext -a -t snort_var_run_t '/srv/mysnort_content(/.*)?'
241       restorecon -R -v /srv/mysnort_content
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243       Note: SELinux often uses regular expressions  to  specify  labels  that
244       match multiple files.
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246       The following file types are defined for snort:
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250       snort_etc_t
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252       - Set files with the snort_etc_t type, if you want to store snort files
253       in the /etc directories.
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257       snort_exec_t
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259       - Set files with the snort_exec_t type, if you want  to  transition  an
260       executable to the snort_t domain.
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263       Paths:
264            /usr/bin/snort, /usr/sbin/snort, /usr/sbin/snort-plain
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266
267       snort_initrc_exec_t
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269       -  Set  files with the snort_initrc_exec_t type, if you want to transi‐
270       tion an executable to the snort_initrc_t domain.
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274       snort_log_t
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276       - Set files with the snort_log_t type, if you want to treat the data as
277       snort log data, usually stored under the /var/log directory.
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281       snort_tmp_t
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283       -  Set files with the snort_tmp_t type, if you want to store snort tem‐
284       porary files in the /tmp directories.
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288       snort_var_run_t
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290       - Set files with the snort_var_run_t type, if you  want  to  store  the
291       snort files under the /run or /var/run directory.
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295       Note:  File context can be temporarily modified with the chcon command.
296       If you want to permanently change the file context you need to use  the
297       semanage fcontext command.  This will modify the SELinux labeling data‐
298       base.  You will need to use restorecon to apply the labels.
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COMMANDS

302       semanage fcontext can also be used to manipulate default  file  context
303       mappings.
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305       semanage  permissive  can  also  be used to manipulate whether or not a
306       process type is permissive.
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308       semanage module can also be used to enable/disable/install/remove  pol‐
309       icy modules.
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311       semanage boolean can also be used to manipulate the booleans
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313
314       system-config-selinux is a GUI tool available to customize SELinux pol‐
315       icy settings.
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AUTHOR

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