1rwho_selinux(8) SELinux Policy rwho rwho_selinux(8)
2
6 rwho_selinux - Security Enhanced Linux Policy for the rwho processes
7
9 Security-Enhanced Linux secures the rwho processes via flexible manda‐
10 tory access control.
11 The rwho processes execute with the rwho_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 rwho_t
19
23 The rwho_t SELinux type can be entered via the rwho_exec_t file type.
24 The default entrypoint paths for the rwho_t domain are the following:
26 /usr/sbin/rwhod
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 rwho policy is very flexible allowing users to setup their rwho pro‐
37 cesses in as secure a method as possible.
38 The following process types are defined for rwho:
40 rwho_t
42 Note: semanage permissive -a rwho_t can be used to make the process
44 type rwho_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. rwho
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run rwho 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 confined applications to run with kerberos, you
86 must turn on the allow_kerberos boolean. Enabled by default.
87 setsebool -P allow_kerberos 1
89 If you want to allow sysadm to debug or ptrace all processes, you must
93 turn on the allow_ptrace boolean. Disabled by default.
94 setsebool -P allow_ptrace 1
96 If you want to allow system to run with NIS, you must turn on the
100 allow_ypbind boolean. Disabled by default.
101 setsebool -P allow_ypbind 1
103 If you want to enable cluster mode for daemons, you must turn on the
107 daemons_enable_cluster_mode boolean. Disabled by default.
108 setsebool -P daemons_enable_cluster_mode 1
110 If you want to allow all domains to have the kernel load modules, you
114 must turn on the domain_kernel_load_modules boolean. Disabled by
115 default.
116 setsebool -P domain_kernel_load_modules 1
118 If you want to allow all domains to execute in fips_mode, you must turn
122 on the fips_mode boolean. Enabled by default.
123 setsebool -P fips_mode 1
125 If you want to enable reading of urandom for all domains, you must turn
129 on the global_ssp boolean. Disabled by default.
130 setsebool -P global_ssp 1
132 If you want to enable support for upstart as the init program, you must
136 turn on the init_upstart boolean. Enabled by default.
137 setsebool -P init_upstart 1
139 If you want to allow confined applications to use nscd shared memory,
143 you must turn on the nscd_use_shm boolean. Enabled by default.
144 setsebool -P nscd_use_shm 1
146
150 SELinux defines port types to represent TCP and UDP ports.
151 You can see the types associated with a port by using the following
153 command:
154 semanage port -l
156 Policy governs the access confined processes have to these ports.
159 SELinux rwho policy is very flexible allowing users to setup their rwho
160 processes in as secure a method as possible.
161 The following port types are defined for rwho:
163 rwho_port_t
166 Default Defined Ports:
170 udp 513
171
173 The SELinux process type rwho_t can manage files labeled with the fol‐
174 lowing file types. The paths listed are the default paths for these
175 file types. Note the processes UID still need to have DAC permissions.
176 cluster_conf_t
178 /etc/cluster(/.*)?
180 cluster_var_lib_t
182 /var/lib(64)?/openais(/.*)?
184 /var/lib(64)?/pengine(/.*)?
185 /var/lib(64)?/corosync(/.*)?
186 /usr/lib(64)?/heartbeat(/.*)?
187 /var/lib(64)?/heartbeat(/.*)?
188 /var/lib(64)?/pacemaker(/.*)?
189 /var/lib/cluster(/.*)?
190 cluster_var_run_t
192 /var/run/crm(/.*)?
194 /var/run/cman_.*
195 /var/run/rsctmp(/.*)?
196 /var/run/aisexec.*
197 /var/run/heartbeat(/.*)?
198 /var/run/cpglockd.pid
199 /var/run/corosync.pid
200 /var/run/rgmanager.pid
201 /var/run/cluster/rgmanager.sk
202 initrc_tmp_t
204 mnt_t
207 /mnt(/[^/]*)
209 /mnt(/[^/]*)?
210 /rhev(/[^/]*)?
211 /media(/[^/]*)
212 /media(/[^/]*)?
213 /etc/rhgb(/.*)?
214 /media/.hal-.*
215 /net
216 /afs
217 /rhev
218 /misc
219 root_t
221 /
223 /initrd
224 rwho_log_t
226 /var/log/rwhod(/.*)?
228 rwho_spool_t
230 /var/spool/rwho(/.*)?
232 tmp_t
234 /tmp
236 /usr/tmp
237 /var/tmp
238 /tmp-inst
239 /var/tmp-inst
240 /var/tmp/vi.recover
241
244 SELinux requires files to have an extended attribute to define the file
245 type.
246 You can see the context of a file using the -Z option to ls
248 Policy governs the access confined processes have to these files.
250 SELinux rwho policy is very flexible allowing users to setup their rwho
251 processes in as secure a method as possible.
252 STANDARD FILE CONTEXT
254 SELinux defines the file context types for the rwho, if you wanted to
256 store files with these types in a diffent paths, you need to execute
257 the semanage command to sepecify alternate labeling and then use
258 restorecon to put the labels on disk.
259 semanage fcontext -a -t rwho_spool_t '/srv/myrwho_content(/.*)?'
261 restorecon -R -v /srv/myrwho_content
262 Note: SELinux often uses regular expressions to specify labels that
264 match multiple files.
265 The following file types are defined for rwho:
267 rwho_exec_t
271 - Set files with the rwho_exec_t type, if you want to transition an
273 executable to the rwho_t domain.
274 rwho_initrc_exec_t
278 - Set files with the rwho_initrc_exec_t type, if you want to transition
280 an executable to the rwho_initrc_t domain.
281 rwho_log_t
285 - Set files with the rwho_log_t type, if you want to treat the data as
287 rwho log data, usually stored under the /var/log directory.
288 rwho_spool_t
292 - Set files with the rwho_spool_t type, if you want to store the rwho
294 files under the /var/spool directory.
295 Note: File context can be temporarily modified with the chcon command.
299 If you want to permanently change the file context you need to use the
300 semanage fcontext command. This will modify the SELinux labeling data‐
301 base. You will need to use restorecon to apply the labels.
302
305 semanage fcontext can also be used to manipulate default file context
306 mappings.
307 semanage permissive can also be used to manipulate whether or not a
309 process type is permissive.
310 semanage module can also be used to enable/disable/install/remove pol‐
312 icy modules.
313 semanage port can also be used to manipulate the port definitions
315 semanage boolean can also be used to manipulate the booleans
317 system-config-selinux is a GUI tool available to customize SELinux pol‐
320 icy settings.
321
324 This manual page was auto-generated using sepolicy manpage .
325
328 selinux(8), rwho(8), semanage(8), restorecon(8), chcon(1) , setse‐
329 bool(8)
330rwho 15-06-03 rwho_selinux(8)