1osad_selinux(8) SELinux Policy osad osad_selinux(8)
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6 osad_selinux - Security Enhanced Linux Policy for the osad processes
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9 Security-Enhanced Linux secures the osad processes via flexible manda‐
10 tory access control.
11 The osad processes execute with the osad_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 osad_t
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23 The osad_t SELinux type can be entered via the osad_exec_t file type.
24 The default entrypoint paths for the osad_t domain are the following:
26 /usr/sbin/osad
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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 osad policy is very flexible allowing users to setup their osad pro‐
37 cesses in as secure a method as possible.
38 The following process types are defined for osad:
40 osad_t
42 Note: semanage permissive -a osad_t can be used to make the process
44 type osad_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. osad
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run osad 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 to write corefiles to /, you must turn
65 on the daemons_dump_core boolean. Disabled by default.
66 setsebool -P daemons_dump_core 1
68 If you want to enable cluster mode for daemons, you must turn on the
72 daemons_enable_cluster_mode boolean. Enabled by default.
73 setsebool -P daemons_enable_cluster_mode 1
75 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.
80 setsebool -P daemons_use_tcp_wrapper 1
82 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.
87 setsebool -P daemons_use_tty 1
89 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.
95 setsebool -P deny_ptrace 1
97 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.
103 setsebool -P domain_can_mmap_files 1
105 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.
111 setsebool -P domain_can_write_kmsg 1
113 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.
118 setsebool -P domain_fd_use 1
120 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.
126 setsebool -P domain_kernel_load_modules 1
128 If you want to allow all domains to execute in fips_mode, you must turn
132 on the fips_mode boolean. Enabled by default.
133 setsebool -P fips_mode 1
135 If you want to enable reading of urandom for all domains, you must turn
139 on the global_ssp boolean. Disabled by default.
140 setsebool -P global_ssp 1
142 If you want to allow confined applications to run with kerberos, you
146 must turn on the kerberos_enabled boolean. Enabled by default.
147 setsebool -P kerberos_enabled 1
149 If you want to allow system to run with NIS, you must turn on the
153 nis_enabled boolean. Disabled by default.
154 setsebool -P nis_enabled 1
156 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.
161 setsebool -P nscd_use_shm 1
163
167 The SELinux process type osad_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.
170 cluster_conf_t
172 /etc/cluster(/.*)?
174 cluster_var_lib_t
176 /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(/.*)?
185 cluster_var_run_t
187 /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
199 osad_log_t
201 /var/log/osad.*
203 osad_var_run_t
205 /var/run/osad.*
207 rhnsd_conf_t
209 /etc/sysconfig/rhn(/.*)?
211 root_t
213 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
215 /
216 /initrd
217
220 SELinux requires files to have an extended attribute to define the file
221 type.
222 You can see the context of a file using the -Z option to ls
224 Policy governs the access confined processes have to these files.
226 SELinux osad policy is very flexible allowing users to setup their osad
227 processes in as secure a method as possible.
228 STANDARD FILE CONTEXT
230 SELinux defines the file context types for the osad, if you wanted to
232 store files with these types in a diffent paths, you need to execute
233 the semanage command to sepecify alternate labeling and then use
234 restorecon to put the labels on disk.
235 semanage fcontext -a -t osad_var_run_t '/srv/myosad_content(/.*)?'
237 restorecon -R -v /srv/myosad_content
238 Note: SELinux often uses regular expressions to specify labels that
240 match multiple files.
241 The following file types are defined for osad:
243 osad_exec_t
247 - Set files with the osad_exec_t type, if you want to transition an
249 executable to the osad_t domain.
250 osad_initrc_exec_t
254 - Set files with the osad_initrc_exec_t type, if you want to transition
256 an executable to the osad_initrc_t domain.
257 osad_log_t
261 - Set files with the osad_log_t type, if you want to treat the data as
263 osad log data, usually stored under the /var/log directory.
264 osad_var_run_t
268 - Set files with the osad_var_run_t type, if you want to store the osad
270 files under the /run or /var/run directory.
271 Note: File context can be temporarily modified with the chcon command.
275 If you want to permanently change the file context you need to use the
276 semanage fcontext command. This will modify the SELinux labeling data‐
277 base. You will need to use restorecon to apply the labels.
278
281 semanage fcontext can also be used to manipulate default file context
282 mappings.
283 semanage permissive can also be used to manipulate whether or not a
285 process type is permissive.
286 semanage module can also be used to enable/disable/install/remove pol‐
288 icy modules.
289 semanage boolean can also be used to manipulate the booleans
291 system-config-selinux is a GUI tool available to customize SELinux pol‐
294 icy settings.
295
298 This manual page was auto-generated using sepolicy manpage .
299
302 selinux(8), osad(8), semanage(8), restorecon(8), chcon(1), sepolicy(8)
303 , setsebool(8)
304osad 19-04-25 osad_selinux(8)