1mrtg_selinux(8) SELinux Policy mrtg mrtg_selinux(8)
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6 mrtg_selinux - Security Enhanced Linux Policy for the mrtg processes
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9 Security-Enhanced Linux secures the mrtg processes via flexible manda‐
10 tory access control.
11 The mrtg processes execute with the mrtg_t SELinux type. You can check
13 if you have these processes running by executing the ps command with
14 the -Z qualifier.
15 For example:
17 ps -eZ | grep mrtg_t
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23 The mrtg_t SELinux type can be entered via the mrtg_exec_t file type.
24 The default entrypoint paths for the mrtg_t domain are the following:
26 /usr/bin/mrtg
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 mrtg policy is very flexible allowing users to setup their mrtg pro‐
37 cesses in as secure a method as possible.
38 The following process types are defined for mrtg:
40 mrtg_t
42 Note: semanage permissive -a mrtg_t can be used to make the process
44 type mrtg_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. mrtg
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run mrtg with the tightest access possible.
53 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.
59 setsebool -P authlogin_nsswitch_use_ldap 1
61 If you want to allow all daemons the ability to read/write terminals,
65 you must turn on the daemons_use_tty boolean. Disabled by default.
66 setsebool -P daemons_use_tty 1
68 If you want to deny any process from ptracing or debugging any other
72 processes, you must turn on the deny_ptrace boolean. Enabled by
73 default.
74 setsebool -P deny_ptrace 1
76 If you want to allow any process to mmap any file on system with
80 attribute file_type, you must turn on the domain_can_mmap_files bool‐
81 ean. Enabled by default.
82 setsebool -P domain_can_mmap_files 1
84 If you want to allow all domains write to kmsg_device, while kernel is
88 executed with systemd.log_target=kmsg parameter, you must turn on the
89 domain_can_write_kmsg boolean. Disabled by default.
90 setsebool -P domain_can_write_kmsg 1
92 If you want to allow all domains to use other domains file descriptors,
96 you must turn on the domain_fd_use boolean. Enabled by default.
97 setsebool -P domain_fd_use 1
99 If you want to allow all domains to have the kernel load modules, you
103 must turn on the domain_kernel_load_modules boolean. Disabled by
104 default.
105 setsebool -P domain_kernel_load_modules 1
107 If you want to allow all domains to execute in fips_mode, you must turn
111 on the fips_mode boolean. Enabled by default.
112 setsebool -P fips_mode 1
114 If you want to enable reading of urandom for all domains, you must turn
118 on the global_ssp boolean. Disabled by default.
119 setsebool -P global_ssp 1
121 If you want to allow confined applications to run with kerberos, you
125 must turn on the kerberos_enabled boolean. Enabled by default.
126 setsebool -P kerberos_enabled 1
128 If you want to allow system to run with NIS, you must turn on the
132 nis_enabled boolean. Disabled by default.
133 setsebool -P nis_enabled 1
135 If you want to allow confined applications to use nscd shared memory,
139 you must turn on the nscd_use_shm boolean. Disabled by default.
140 setsebool -P nscd_use_shm 1
142
146 The SELinux process type mrtg_t can manage files labeled with the fol‐
147 lowing file types. The paths listed are the default paths for these
148 file types. Note the processes UID still need to have DAC permissions.
149 httpd_sys_content_t
151 /srv/([^/]*/)?www(/.*)?
153 /var/www(/.*)?
154 /etc/htdig(/.*)?
155 /srv/gallery2(/.*)?
156 /var/lib/trac(/.*)?
157 /var/lib/htdig(/.*)?
158 /var/www/icons(/.*)?
159 /usr/share/glpi(/.*)?
160 /usr/share/htdig(/.*)?
161 /usr/share/drupal.*
162 /usr/share/z-push(/.*)?
163 /var/www/svn/conf(/.*)?
164 /usr/share/icecast(/.*)?
165 /var/lib/cacti/rra(/.*)?
166 /usr/share/ntop/html(/.*)?
167 /usr/share/nginx/html(/.*)?
168 /usr/share/doc/ghc/html(/.*)?
169 /usr/share/openca/htdocs(/.*)?
170 /usr/share/selinux-policy[^/]*/html(/.*)?
171 mrtg_lock_t
173 /var/lock/mrtg(/.*)?
175 /var/lock/mrtg-rrd(/.*)?
176 /etc/mrtg/mrtg.ok
177 /var/lock/subsys/mrtg
178 mrtg_var_lib_t
180 /var/lib/mrtg(/.*)?
182 mrtg_var_run_t
184 /var/run/mrtg.pid
186
189 SELinux requires files to have an extended attribute to define the file
190 type.
191 You can see the context of a file using the -Z option to ls
193 Policy governs the access confined processes have to these files.
195 SELinux mrtg policy is very flexible allowing users to setup their mrtg
196 processes in as secure a method as possible.
197 EQUIVALENCE DIRECTORIES
199 mrtg policy stores data with multiple different file context types
202 under the /var/lock/mrtg directory. If you would like to store the
203 data in a different directory you can use the semanage command to cre‐
204 ate an equivalence mapping. If you wanted to store this data under the
205 /srv dirctory you would execute the following command:
206 semanage fcontext -a -e /var/lock/mrtg /srv/mrtg
208 restorecon -R -v /srv/mrtg
209 STANDARD FILE CONTEXT
211 SELinux defines the file context types for the mrtg, if you wanted to
213 store files with these types in a diffent paths, you need to execute
214 the semanage command to sepecify alternate labeling and then use
215 restorecon to put the labels on disk.
216 semanage fcontext -a -t mrtg_var_run_t '/srv/mymrtg_content(/.*)?'
218 restorecon -R -v /srv/mymrtg_content
219 Note: SELinux often uses regular expressions to specify labels that
221 match multiple files.
222 The following file types are defined for mrtg:
224 mrtg_etc_t
228 - Set files with the mrtg_etc_t type, if you want to store mrtg files
230 in the /etc directories.
231 mrtg_exec_t
235 - Set files with the mrtg_exec_t type, if you want to transition an
237 executable to the mrtg_t domain.
238 mrtg_initrc_exec_t
242 - Set files with the mrtg_initrc_exec_t type, if you want to transition
244 an executable to the mrtg_initrc_t domain.
245 mrtg_lock_t
249 - Set files with the mrtg_lock_t type, if you want to treat the files
251 as mrtg lock data, stored under the /var/lock directory
252 Paths:
255 /var/lock/mrtg(/.*)?, /var/lock/mrtg-rrd(/.*)?, /etc/mrtg/mrtg.ok,
256 /var/lock/subsys/mrtg
257 mrtg_log_t
260 - Set files with the mrtg_log_t type, if you want to treat the data as
262 mrtg log data, usually stored under the /var/log directory.
263 mrtg_var_lib_t
267 - Set files with the mrtg_var_lib_t type, if you want to store the mrtg
269 files under the /var/lib directory.
270 mrtg_var_run_t
274 - Set files with the mrtg_var_run_t type, if you want to store the mrtg
276 files under the /run or /var/run directory.
277 Note: File context can be temporarily modified with the chcon command.
281 If you want to permanently change the file context you need to use the
282 semanage fcontext command. This will modify the SELinux labeling data‐
283 base. You will need to use restorecon to apply the labels.
284
287 semanage fcontext can also be used to manipulate default file context
288 mappings.
289 semanage permissive can also be used to manipulate whether or not a
291 process type is permissive.
292 semanage module can also be used to enable/disable/install/remove pol‐
294 icy modules.
295 semanage boolean can also be used to manipulate the booleans
297 system-config-selinux is a GUI tool available to customize SELinux pol‐
300 icy settings.
301
304 This manual page was auto-generated using sepolicy manpage .
305
308 selinux(8), mrtg(8), semanage(8), restorecon(8), chcon(1), sepolicy(8)
309 , setsebool(8)
310mrtg 19-04-25 mrtg_selinux(8)