1phc2sys_selinux(8) SELinux Policy phc2sys phc2sys_selinux(8)
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6 phc2sys_selinux - Security Enhanced Linux Policy for the phc2sys pro‐
7 cesses
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10 Security-Enhanced Linux secures the phc2sys processes via flexible
11 mandatory access control.
12 The phc2sys processes execute with the phc2sys_t SELinux type. You can
14 check if you have these processes running by executing the ps command
15 with the -Z qualifier.
16 For example:
18 ps -eZ | grep phc2sys_t
20
24 The phc2sys_t SELinux type can be entered via the phc2sys_exec_t file
25 type.
26 The default entrypoint paths for the phc2sys_t domain are the follow‐
28 ing:
29 /usr/sbin/phc2sys
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 phc2sys policy is very flexible allowing users to setup their phc2sys
40 processes in as secure a method as possible.
41 The following process types are defined for phc2sys:
43 phc2sys_t
45 Note: semanage permissive -a phc2sys_t can be used to make the process
47 type phc2sys_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
50
53 SELinux policy is customizable based on least access required. phc2sys
54 policy is extremely flexible and has several booleans that allow you to
55 manipulate the policy and run phc2sys with the tightest access possi‐
56 ble.
57 If you want to allow all daemons to write corefiles to /, you must turn
61 on the daemons_dump_core boolean. Disabled by default.
62 setsebool -P daemons_dump_core 1
64 If you want to enable cluster mode for daemons, you must turn on the
68 daemons_enable_cluster_mode boolean. Enabled by default.
69 setsebool -P daemons_enable_cluster_mode 1
71 If you want to allow all daemons to use tcp wrappers, you must turn on
75 the daemons_use_tcp_wrapper boolean. Disabled by default.
76 setsebool -P daemons_use_tcp_wrapper 1
78 If you want to allow all daemons the ability to read/write terminals,
82 you must turn on the daemons_use_tty boolean. Disabled by default.
83 setsebool -P daemons_use_tty 1
85 If you want to deny any process from ptracing or debugging any other
89 processes, you must turn on the deny_ptrace boolean. Enabled by
90 default.
91 setsebool -P deny_ptrace 1
93 If you want to allow any process to mmap any file on system with
97 attribute file_type, you must turn on the domain_can_mmap_files bool‐
98 ean. Enabled by default.
99 setsebool -P domain_can_mmap_files 1
101 If you want to allow all domains write to kmsg_device, while kernel is
105 executed with systemd.log_target=kmsg parameter, you must turn on the
106 domain_can_write_kmsg boolean. Disabled by default.
107 setsebool -P domain_can_write_kmsg 1
109 If you want to allow all domains to use other domains file descriptors,
113 you must turn on the domain_fd_use boolean. Enabled by default.
114 setsebool -P domain_fd_use 1
116 If you want to allow all domains to have the kernel load modules, you
120 must turn on the domain_kernel_load_modules boolean. Disabled by
121 default.
122 setsebool -P domain_kernel_load_modules 1
124 If you want to allow all domains to execute in fips_mode, you must turn
128 on the fips_mode boolean. Enabled by default.
129 setsebool -P fips_mode 1
131 If you want to enable reading of urandom for all domains, you must turn
135 on the global_ssp boolean. Disabled by default.
136 setsebool -P global_ssp 1
138
142 The SELinux process type phc2sys_t can manage files labeled with the
143 following file types. The paths listed are the default paths for these
144 file types. Note the processes UID still need to have DAC permissions.
145 chronyd_tmpfs_t
147 cluster_conf_t
150 /etc/cluster(/.*)?
152 cluster_var_lib_t
154 /var/lib/pcsd(/.*)?
156 /var/lib/cluster(/.*)?
157 /var/lib/openais(/.*)?
158 /var/lib/pengine(/.*)?
159 /var/lib/corosync(/.*)?
160 /usr/lib/heartbeat(/.*)?
161 /var/lib/heartbeat(/.*)?
162 /var/lib/pacemaker(/.*)?
163 cluster_var_run_t
165 /var/run/crm(/.*)?
167 /var/run/cman_.*
168 /var/run/rsctmp(/.*)?
169 /var/run/aisexec.*
170 /var/run/heartbeat(/.*)?
171 /var/run/corosync-qnetd(/.*)?
172 /var/run/corosync-qdevice(/.*)?
173 /var/run/cpglockd.pid
174 /var/run/corosync.pid
175 /var/run/rgmanager.pid
176 /var/run/cluster/rgmanager.sk
177 gpsd_tmpfs_t
179 ntpd_tmpfs_t
182 root_t
185 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
187 /
188 /initrd
189 timemaster_tmpfs_t
191 timemaster_var_run_t
194 /var/run/timemaster(/.*)?
196
199 SELinux requires files to have an extended attribute to define the file
200 type.
201 You can see the context of a file using the -Z option to ls
203 Policy governs the access confined processes have to these files.
205 SELinux phc2sys policy is very flexible allowing users to setup their
206 phc2sys processes in as secure a method as possible.
207 STANDARD FILE CONTEXT
209 SELinux defines the file context types for the phc2sys, if you wanted
211 to store files with these types in a diffent paths, you need to execute
212 the semanage command to sepecify alternate labeling and then use
213 restorecon to put the labels on disk.
214 semanage fcontext -a -t phc2sys_unit_file_t '/srv/myphc2sys_con‐
216 tent(/.*)?'
217 restorecon -R -v /srv/myphc2sys_content
218 Note: SELinux often uses regular expressions to specify labels that
220 match multiple files.
221 The following file types are defined for phc2sys:
223 phc2sys_exec_t
227 - Set files with the phc2sys_exec_t type, if you want to transition an
229 executable to the phc2sys_t domain.
230 phc2sys_unit_file_t
234 - Set files with the phc2sys_unit_file_t type, if you want to treat the
236 files as phc2sys unit content.
237 Note: File context can be temporarily modified with the chcon command.
241 If you want to permanently change the file context you need to use the
242 semanage fcontext command. This will modify the SELinux labeling data‐
243 base. You will need to use restorecon to apply the labels.
244
247 semanage fcontext can also be used to manipulate default file context
248 mappings.
249 semanage permissive can also be used to manipulate whether or not a
251 process type is permissive.
252 semanage module can also be used to enable/disable/install/remove pol‐
254 icy modules.
255 semanage boolean can also be used to manipulate the booleans
257 system-config-selinux is a GUI tool available to customize SELinux pol‐
260 icy settings.
261
264 This manual page was auto-generated using sepolicy manpage .
265
268 selinux(8), phc2sys(8), semanage(8), restorecon(8), chcon(1), sepol‐
269 icy(8) , setsebool(8)
270phc2sys 19-04-25 phc2sys_selinux(8)