1ptal_selinux(8) SELinux Policy ptal ptal_selinux(8)
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6 ptal_selinux - Security Enhanced Linux Policy for the ptal processes
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9 Security-Enhanced Linux secures the ptal processes via flexible manda‐
10 tory access control.
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12 The ptal processes execute with the ptal_t SELinux type. You can check
13 if you have these processes running by executing the ps command with
14 the -Z qualifier.
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16 For example:
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18 ps -eZ | grep ptal_t
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23 The ptal_t SELinux type can be entered via the ptal_exec_t file type.
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25 The default entrypoint paths for the ptal_t domain are the following:
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27 /usr/sbin/ptal-mlcd, /usr/sbin/ptal-printd, /usr/sbin/ptal-photod
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30 SELinux defines process types (domains) for each process running on the
31 system
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33 You can see the context of a process using the -Z option to ps
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35 Policy governs the access confined processes have to files. SELinux
36 ptal policy is very flexible allowing users to setup their ptal pro‐
37 cesses in as secure a method as possible.
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39 The following process types are defined for ptal:
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41 ptal_t
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43 Note: semanage permissive -a ptal_t can be used to make the process
44 type ptal_t permissive. SELinux does not deny access to permissive
45 process types, but the AVC (SELinux denials) messages are still gener‐
46 ated.
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50 SELinux policy is customizable based on least access required. ptal
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run ptal with the tightest access possible.
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56 If you want to allow all daemons to write corefiles to /, you must turn
57 on the daemons_dump_core boolean. Disabled by default.
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59 setsebool -P daemons_dump_core 1
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63 If you want to enable cluster mode for daemons, you must turn on the
64 daemons_enable_cluster_mode boolean. Enabled by default.
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66 setsebool -P daemons_enable_cluster_mode 1
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70 If you want to allow all daemons to use tcp wrappers, you must turn on
71 the daemons_use_tcp_wrapper boolean. Disabled by default.
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73 setsebool -P daemons_use_tcp_wrapper 1
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77 If you want to allow all daemons the ability to read/write terminals,
78 you must turn on the daemons_use_tty boolean. Disabled by default.
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80 setsebool -P daemons_use_tty 1
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84 If you want to deny any process from ptracing or debugging any other
85 processes, you must turn on the deny_ptrace boolean. Enabled by
86 default.
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88 setsebool -P deny_ptrace 1
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92 If you want to allow any process to mmap any file on system with
93 attribute file_type, you must turn on the domain_can_mmap_files bool‐
94 ean. Enabled by default.
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96 setsebool -P domain_can_mmap_files 1
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100 If you want to allow all domains write to kmsg_device, while kernel is
101 executed with systemd.log_target=kmsg parameter, you must turn on the
102 domain_can_write_kmsg boolean. Disabled by default.
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104 setsebool -P domain_can_write_kmsg 1
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108 If you want to allow all domains to use other domains file descriptors,
109 you must turn on the domain_fd_use boolean. Enabled by default.
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111 setsebool -P domain_fd_use 1
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115 If you want to allow all domains to have the kernel load modules, you
116 must turn on the domain_kernel_load_modules boolean. Disabled by
117 default.
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119 setsebool -P domain_kernel_load_modules 1
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123 If you want to allow all domains to execute in fips_mode, you must turn
124 on the fips_mode boolean. Enabled by default.
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126 setsebool -P fips_mode 1
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130 If you want to enable reading of urandom for all domains, you must turn
131 on the global_ssp boolean. Disabled by default.
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133 setsebool -P global_ssp 1
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138 SELinux defines port types to represent TCP and UDP ports.
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140 You can see the types associated with a port by using the following
141 command:
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143 semanage port -l
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146 Policy governs the access confined processes have to these ports.
147 SELinux ptal policy is very flexible allowing users to setup their ptal
148 processes in as secure a method as possible.
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150 The following port types are defined for ptal:
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153 ptal_port_t
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157 Default Defined Ports:
158 tcp 5703
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161 The SELinux process type ptal_t can manage files labeled with the fol‐
162 lowing file types. The paths listed are the default paths for these
163 file types. Note the processes UID still need to have DAC permissions.
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165 cluster_conf_t
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167 /etc/cluster(/.*)?
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169 cluster_var_lib_t
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171 /var/lib/pcsd(/.*)?
172 /var/lib/cluster(/.*)?
173 /var/lib/openais(/.*)?
174 /var/lib/pengine(/.*)?
175 /var/lib/corosync(/.*)?
176 /usr/lib/heartbeat(/.*)?
177 /var/lib/heartbeat(/.*)?
178 /var/lib/pacemaker(/.*)?
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180 cluster_var_run_t
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182 /var/run/crm(/.*)?
183 /var/run/cman_.*
184 /var/run/rsctmp(/.*)?
185 /var/run/aisexec.*
186 /var/run/heartbeat(/.*)?
187 /var/run/corosync-qnetd(/.*)?
188 /var/run/corosync-qdevice(/.*)?
189 /var/run/cpglockd.pid
190 /var/run/corosync.pid
191 /var/run/rgmanager.pid
192 /var/run/cluster/rgmanager.sk
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194 ptal_var_run_t
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196 /var/run/ptal-mlcd(/.*)?
197 /var/run/ptal-printd(/.*)?
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199 root_t
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201 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
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203 /initrd
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207 SELinux requires files to have an extended attribute to define the file
208 type.
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210 You can see the context of a file using the -Z option to ls
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212 Policy governs the access confined processes have to these files.
213 SELinux ptal policy is very flexible allowing users to setup their ptal
214 processes in as secure a method as possible.
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216 STANDARD FILE CONTEXT
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218 SELinux defines the file context types for the ptal, if you wanted to
219 store files with these types in a diffent paths, you need to execute
220 the semanage command to sepecify alternate labeling and then use
221 restorecon to put the labels on disk.
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223 semanage fcontext -a -t ptal_var_run_t '/srv/myptal_content(/.*)?'
224 restorecon -R -v /srv/myptal_content
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226 Note: SELinux often uses regular expressions to specify labels that
227 match multiple files.
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229 The following file types are defined for ptal:
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233 ptal_etc_t
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235 - Set files with the ptal_etc_t type, if you want to store ptal files
236 in the /etc directories.
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240 ptal_exec_t
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242 - Set files with the ptal_exec_t type, if you want to transition an
243 executable to the ptal_t domain.
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246 Paths:
247 /usr/sbin/ptal-mlcd, /usr/sbin/ptal-printd, /usr/sbin/ptal-photod
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250 ptal_var_run_t
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252 - Set files with the ptal_var_run_t type, if you want to store the ptal
253 files under the /run or /var/run directory.
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256 Paths:
257 /var/run/ptal-mlcd(/.*)?, /var/run/ptal-printd(/.*)?
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260 Note: File context can be temporarily modified with the chcon command.
261 If you want to permanently change the file context you need to use the
262 semanage fcontext command. This will modify the SELinux labeling data‐
263 base. You will need to use restorecon to apply the labels.
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267 semanage fcontext can also be used to manipulate default file context
268 mappings.
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270 semanage permissive can also be used to manipulate whether or not a
271 process type is permissive.
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273 semanage module can also be used to enable/disable/install/remove pol‐
274 icy modules.
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276 semanage port can also be used to manipulate the port definitions
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278 semanage boolean can also be used to manipulate the booleans
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281 system-config-selinux is a GUI tool available to customize SELinux pol‐
282 icy settings.
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286 This manual page was auto-generated using sepolicy manpage .
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290 selinux(8), ptal(8), semanage(8), restorecon(8), chcon(1), sepolicy(8)
291 , setsebool(8)
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295ptal 19-04-25 ptal_selinux(8)