1snort_selinux(8) SELinux Policy snort snort_selinux(8)
2
6 snort_selinux - Security Enhanced Linux Policy for the snort processes
7
9 Security-Enhanced Linux secures the snort processes via flexible manda‐
10 tory access control.
11 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.
15 For example:
17 ps -eZ | grep snort_t
19
23 The snort_t SELinux type can be entered via the snort_exec_t file type.
24 The default entrypoint paths for the snort_t domain are the following:
26 /usr/s?bin/snort, /usr/sbin/snort-plain
28
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 snort policy is very flexible allowing users to setup their snort pro‐
37 cesses in as secure a method as possible.
38 The following process types are defined for snort:
40 snort_t
42 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.
47
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.
53 If you want to allow all daemons to write corefiles to /, you must turn
57 on the allow_daemons_dump_core boolean. Disabled by default.
58 setsebool -P allow_daemons_dump_core 1
60 If you want to allow all daemons to use tcp wrappers, you must turn on
64 the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
65 setsebool -P allow_daemons_use_tcp_wrapper 1
67 If you want to allow all daemons the ability to read/write terminals,
71 you must turn on the allow_daemons_use_tty boolean. Disabled by
72 default.
73 setsebool -P allow_daemons_use_tty 1
75 If you want to allow all domains to use other domains file descriptors,
79 you must turn on the allow_domain_fd_use boolean. Enabled by default.
80 setsebool -P allow_domain_fd_use 1
82 If you want to allow sysadm to debug or ptrace all processes, you must
86 turn on the allow_ptrace boolean. Disabled by default.
87 setsebool -P allow_ptrace 1
89 If you want to enable cluster mode for daemons, you must turn on the
93 daemons_enable_cluster_mode boolean. Disabled by default.
94 setsebool -P daemons_enable_cluster_mode 1
96 If you want to allow all domains to have the kernel load modules, you
100 must turn on the domain_kernel_load_modules boolean. Disabled by
101 default.
102 setsebool -P domain_kernel_load_modules 1
104 If you want to allow all domains to execute in fips_mode, you must turn
108 on the fips_mode boolean. Enabled by default.
109 setsebool -P fips_mode 1
111 If you want to enable reading of urandom for all domains, you must turn
115 on the global_ssp boolean. Disabled by default.
116 setsebool -P global_ssp 1
118 If you want to enable support for upstart as the init program, you must
122 turn on the init_upstart boolean. Enabled by default.
123 setsebool -P init_upstart 1
125
129 The SELinux process type snort_t can manage files labeled with the fol‐
130 lowing file types. The paths listed are the default paths for these
131 file types. Note the processes UID still need to have DAC permissions.
132 cluster_conf_t
134 /etc/cluster(/.*)?
136 cluster_var_lib_t
138 /var/lib(64)?/openais(/.*)?
140 /var/lib(64)?/pengine(/.*)?
141 /var/lib(64)?/corosync(/.*)?
142 /usr/lib(64)?/heartbeat(/.*)?
143 /var/lib(64)?/heartbeat(/.*)?
144 /var/lib(64)?/pacemaker(/.*)?
145 /var/lib/cluster(/.*)?
146 cluster_var_run_t
148 /var/run/crm(/.*)?
150 /var/run/cman_.*
151 /var/run/rsctmp(/.*)?
152 /var/run/aisexec.*
153 /var/run/heartbeat(/.*)?
154 /var/run/cpglockd.pid
155 /var/run/corosync.pid
156 /var/run/rgmanager.pid
157 /var/run/cluster/rgmanager.sk
158 initrc_tmp_t
160 mnt_t
163 /mnt(/[^/]*)
165 /mnt(/[^/]*)?
166 /rhev(/[^/]*)?
167 /media(/[^/]*)
168 /media(/[^/]*)?
169 /etc/rhgb(/.*)?
170 /media/.hal-.*
171 /net
172 /afs
173 /rhev
174 /misc
175 prelude_spool_t
177 /var/spool/prelude(/.*)?
179 /var/spool/prelude-manager(/.*)?
180 root_t
182 /
184 /initrd
185 snort_log_t
187 /var/log/snort(/.*)?
189 snort_tmp_t
191 snort_var_run_t
194 /var/run/snort.*
196 tmp_t
198 /tmp
200 /usr/tmp
201 /var/tmp
202 /tmp-inst
203 /var/tmp-inst
204 /var/tmp/vi.recover
205
208 SELinux requires files to have an extended attribute to define the file
209 type.
210 You can see the context of a file using the -Z option to ls
212 Policy governs the access confined processes have to these files.
214 SELinux snort policy is very flexible allowing users to setup their
215 snort processes in as secure a method as possible.
216 STANDARD FILE CONTEXT
218 SELinux defines the file context types for the snort, if you wanted to
220 store files with these types in a diffent paths, you need to execute
221 the semanage command to sepecify alternate labeling and then use
222 restorecon to put the labels on disk.
223 semanage fcontext -a -t snort_var_run_t '/srv/mysnort_content(/.*)?'
225 restorecon -R -v /srv/mysnort_content
226 Note: SELinux often uses regular expressions to specify labels that
228 match multiple files.
229 The following file types are defined for snort:
231 snort_etc_t
235 - Set files with the snort_etc_t type, if you want to store snort files
237 in the /etc directories.
238 snort_exec_t
242 - Set files with the snort_exec_t type, if you want to transition an
244 executable to the snort_t domain.
245 Paths:
248 /usr/s?bin/snort, /usr/sbin/snort-plain
249 snort_initrc_exec_t
252 - Set files with the snort_initrc_exec_t type, if you want to transi‐
254 tion an executable to the snort_initrc_t domain.
255 snort_log_t
259 - Set files with the snort_log_t type, if you want to treat the data as
261 snort log data, usually stored under the /var/log directory.
262 snort_tmp_t
266 - Set files with the snort_tmp_t type, if you want to store snort tem‐
268 porary files in the /tmp directories.
269 snort_var_run_t
273 - Set files with the snort_var_run_t type, if you want to store the
275 snort files under the /run or /var/run directory.
276 Note: File context can be temporarily modified with the chcon command.
280 If you want to permanently change the file context you need to use the
281 semanage fcontext command. This will modify the SELinux labeling data‐
282 base. You will need to use restorecon to apply the labels.
283
286 semanage fcontext can also be used to manipulate default file context
287 mappings.
288 semanage permissive can also be used to manipulate whether or not a
290 process type is permissive.
291 semanage module can also be used to enable/disable/install/remove pol‐
293 icy modules.
294 semanage boolean can also be used to manipulate the booleans
296 system-config-selinux is a GUI tool available to customize SELinux pol‐
299 icy settings.
300
303 This manual page was auto-generated using sepolicy manpage .
304
307 selinux(8), snort(8), semanage(8), restorecon(8), chcon(1) , setse‐
308 bool(8)
309snort 15-06-03 snort_selinux(8)