1prelude_lml_selinux(8) SELinux Policy prelude_lml prelude_lml_selinux(8)
2
6 prelude_lml_selinux - Security Enhanced Linux Policy for the pre‐
7 lude_lml processes
8
10 Security-Enhanced Linux secures the prelude_lml processes via flexible
11 mandatory access control.
12 The prelude_lml processes execute with the prelude_lml_t SELinux type.
14 You can check if you have these processes running by executing the ps
15 command with the -Z qualifier.
16 For example:
18 ps -eZ | grep prelude_lml_t
20
24 The prelude_lml_t SELinux type can be entered via the pre‐
25 lude_lml_exec_t file type.
26 The default entrypoint paths for the prelude_lml_t domain are the fol‐
28 lowing:
29 /usr/bin/prelude-lml
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 prelude_lml policy is very flexible allowing users to setup their pre‐
40 lude_lml processes in as secure a method as possible.
41 The following process types are defined for prelude_lml:
43 prelude_lml_t
45 Note: semanage permissive -a prelude_lml_t can be used to make the
47 process type prelude_lml_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
53 SELinux policy is customizable based on least access required. pre‐
54 lude_lml policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run prelude_lml with the tight‐
56 est access possible.
57 If you want to allow users to resolve user passwd entries directly from
61 ldap rather then using a sssd server, you must turn on the authlo‐
62 gin_nsswitch_use_ldap boolean. Disabled by default.
63 setsebool -P authlogin_nsswitch_use_ldap 1
65 If you want to allow all daemons to write corefiles to /, you must turn
69 on the daemons_dump_core boolean. Disabled by default.
70 setsebool -P daemons_dump_core 1
72 If you want to enable cluster mode for daemons, you must turn on the
76 daemons_enable_cluster_mode boolean. Enabled by default.
77 setsebool -P daemons_enable_cluster_mode 1
79 If you want to allow all daemons to use tcp wrappers, you must turn on
83 the daemons_use_tcp_wrapper boolean. Disabled by default.
84 setsebool -P daemons_use_tcp_wrapper 1
86 If you want to allow all daemons the ability to read/write terminals,
90 you must turn on the daemons_use_tty boolean. Disabled by default.
91 setsebool -P daemons_use_tty 1
93 If you want to deny any process from ptracing or debugging any other
97 processes, you must turn on the deny_ptrace boolean. Enabled by
98 default.
99 setsebool -P deny_ptrace 1
101 If you want to allow any process to mmap any file on system with
105 attribute file_type, you must turn on the domain_can_mmap_files bool‐
106 ean. Enabled by default.
107 setsebool -P domain_can_mmap_files 1
109 If you want to allow all domains write to kmsg_device, while kernel is
113 executed with systemd.log_target=kmsg parameter, you must turn on the
114 domain_can_write_kmsg boolean. Disabled by default.
115 setsebool -P domain_can_write_kmsg 1
117 If you want to allow all domains to use other domains file descriptors,
121 you must turn on the domain_fd_use boolean. Enabled by default.
122 setsebool -P domain_fd_use 1
124 If you want to allow all domains to have the kernel load modules, you
128 must turn on the domain_kernel_load_modules boolean. Disabled by
129 default.
130 setsebool -P domain_kernel_load_modules 1
132 If you want to allow all domains to execute in fips_mode, you must turn
136 on the fips_mode boolean. Enabled by default.
137 setsebool -P fips_mode 1
139 If you want to enable reading of urandom for all domains, you must turn
143 on the global_ssp boolean. Disabled by default.
144 setsebool -P global_ssp 1
146 If you want to allow confined applications to run with kerberos, you
150 must turn on the kerberos_enabled boolean. Enabled by default.
151 setsebool -P kerberos_enabled 1
153 If you want to allow system to run with NIS, you must turn on the
157 nis_enabled boolean. Disabled by default.
158 setsebool -P nis_enabled 1
160 If you want to allow confined applications to use nscd shared memory,
164 you must turn on the nscd_use_shm boolean. Disabled by default.
165 setsebool -P nscd_use_shm 1
167
171 The SELinux process type prelude_lml_t can manage files labeled with
172 the following file types. The paths listed are the default paths for
173 these file types. Note the processes UID still need to have DAC per‐
174 missions.
175 anon_inodefs_t
177 cluster_conf_t
180 /etc/cluster(/.*)?
182 cluster_var_lib_t
184 /var/lib/pcsd(/.*)?
186 /var/lib/cluster(/.*)?
187 /var/lib/openais(/.*)?
188 /var/lib/pengine(/.*)?
189 /var/lib/corosync(/.*)?
190 /usr/lib/heartbeat(/.*)?
191 /var/lib/heartbeat(/.*)?
192 /var/lib/pacemaker(/.*)?
193 cluster_var_run_t
195 /var/run/crm(/.*)?
197 /var/run/cman_.*
198 /var/run/rsctmp(/.*)?
199 /var/run/aisexec.*
200 /var/run/heartbeat(/.*)?
201 /var/run/corosync-qnetd(/.*)?
202 /var/run/corosync-qdevice(/.*)?
203 /var/run/cpglockd.pid
204 /var/run/corosync.pid
205 /var/run/rgmanager.pid
206 /var/run/cluster/rgmanager.sk
207 prelude_lml_tmp_t
209 prelude_lml_var_run_t
212 /var/run/prelude-lml.pid
214 prelude_spool_t
216 /var/spool/prelude(/.*)?
218 /var/spool/prelude-manager(/.*)?
219 prelude_var_lib_t
221 /var/lib/prelude-lml(/.*)?
223 root_t
225 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
227 /
228 /initrd
229
232 SELinux requires files to have an extended attribute to define the file
233 type.
234 You can see the context of a file using the -Z option to ls
236 Policy governs the access confined processes have to these files.
238 SELinux prelude_lml policy is very flexible allowing users to setup
239 their prelude_lml processes in as secure a method as possible.
240 STANDARD FILE CONTEXT
242 SELinux defines the file context types for the prelude_lml, if you
244 wanted to store files with these types in a diffent paths, you need to
245 execute the semanage command to sepecify alternate labeling and then
246 use restorecon to put the labels on disk.
247 semanage fcontext -a -t prelude_lml_var_run_t '/srv/myprelude_lml_con‐
249 tent(/.*)?'
250 restorecon -R -v /srv/myprelude_lml_content
251 Note: SELinux often uses regular expressions to specify labels that
253 match multiple files.
254 The following file types are defined for prelude_lml:
256 prelude_lml_exec_t
260 - Set files with the prelude_lml_exec_t type, if you want to transition
262 an executable to the prelude_lml_t domain.
263 prelude_lml_tmp_t
267 - Set files with the prelude_lml_tmp_t type, if you want to store pre‐
269 lude lml temporary files in the /tmp directories.
270 prelude_lml_var_run_t
274 - Set files with the prelude_lml_var_run_t type, if you want to store
276 the prelude lml 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), prelude_lml(8), semanage(8), restorecon(8), chcon(1),
309 sepolicy(8) , setsebool(8)
310prelude_lml 19-04-25 prelude_lml_selinux(8)