1rwho_selinux(8) SELinux Policy rwho rwho_selinux(8)
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6 rwho_selinux - Security Enhanced Linux Policy for the rwho processes
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9 Security-Enhanced Linux secures the rwho processes via flexible manda‐
10 tory access control.
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12 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.
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16 For example:
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18 ps -eZ | grep rwho_t
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23 The rwho_t SELinux type can be entered via the rwho_exec_t file type.
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25 The default entrypoint paths for the rwho_t domain are the following:
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27 /usr/sbin/rwhod
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30 SELinux defines process types (domains) for each process running on the
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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 rwho policy is very flexible allowing users to setup their rwho pro‐
37 cesses in as secure a method as possible.
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39 The following process types are defined for rwho:
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41 rwho_t
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43 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.
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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.
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56 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.
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60 setsebool -P authlogin_nsswitch_use_ldap 1
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64 If you want to allow all daemons to write corefiles to /, you must turn
65 on the daemons_dump_core boolean. Disabled by default.
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67 setsebool -P daemons_dump_core 1
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71 If you want to enable cluster mode for daemons, you must turn on the
72 daemons_enable_cluster_mode boolean. Enabled by default.
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74 setsebool -P daemons_enable_cluster_mode 1
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78 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.
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81 setsebool -P daemons_use_tcp_wrapper 1
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85 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.
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88 setsebool -P daemons_use_tty 1
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92 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.
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96 setsebool -P deny_ptrace 1
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100 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.
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104 setsebool -P domain_can_mmap_files 1
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108 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.
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112 setsebool -P domain_can_write_kmsg 1
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116 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.
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119 setsebool -P domain_fd_use 1
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123 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
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127 setsebool -P domain_kernel_load_modules 1
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131 If you want to allow all domains to execute in fips_mode, you must turn
132 on the fips_mode boolean. Enabled by default.
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134 setsebool -P fips_mode 1
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138 If you want to enable reading of urandom for all domains, you must turn
139 on the global_ssp boolean. Disabled by default.
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141 setsebool -P global_ssp 1
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145 If you want to allow confined applications to run with kerberos, you
146 must turn on the kerberos_enabled boolean. Enabled by default.
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148 setsebool -P kerberos_enabled 1
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152 If you want to allow system to run with NIS, you must turn on the
153 nis_enabled boolean. Disabled by default.
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155 setsebool -P nis_enabled 1
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159 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.
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162 setsebool -P nscd_use_shm 1
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167 SELinux defines port types to represent TCP and UDP ports.
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169 You can see the types associated with a port by using the following
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172 semanage port -l
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175 Policy governs the access confined processes have to these ports.
176 SELinux rwho policy is very flexible allowing users to setup their rwho
177 processes in as secure a method as possible.
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179 The following port types are defined for rwho:
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182 rwho_port_t
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186 Default Defined Ports:
187 udp 513
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190 The SELinux process type rwho_t can manage files labeled with the fol‐
191 lowing file types. The paths listed are the default paths for these
192 file types. Note the processes UID still need to have DAC permissions.
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194 cluster_conf_t
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196 /etc/cluster(/.*)?
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198 cluster_var_lib_t
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200 /var/lib/pcsd(/.*)?
201 /var/lib/cluster(/.*)?
202 /var/lib/openais(/.*)?
203 /var/lib/pengine(/.*)?
204 /var/lib/corosync(/.*)?
205 /usr/lib/heartbeat(/.*)?
206 /var/lib/heartbeat(/.*)?
207 /var/lib/pacemaker(/.*)?
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209 cluster_var_run_t
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211 /var/run/crm(/.*)?
212 /var/run/cman_.*
213 /var/run/rsctmp(/.*)?
214 /var/run/aisexec.*
215 /var/run/heartbeat(/.*)?
216 /var/run/corosync-qnetd(/.*)?
217 /var/run/corosync-qdevice(/.*)?
218 /var/run/cpglockd.pid
219 /var/run/corosync.pid
220 /var/run/rgmanager.pid
221 /var/run/cluster/rgmanager.sk
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223 root_t
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225 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
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227 /initrd
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229 rwho_spool_t
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231 /var/spool/rwho(/.*)?
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235 SELinux requires files to have an extended attribute to define the file
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238 You can see the context of a file using the -Z option to ls
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240 Policy governs the access confined processes have to these files.
241 SELinux rwho policy is very flexible allowing users to setup their rwho
242 processes in as secure a method as possible.
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244 STANDARD FILE CONTEXT
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246 SELinux defines the file context types for the rwho, if you wanted to
247 store files with these types in a diffent paths, you need to execute
248 the semanage command to sepecify alternate labeling and then use
249 restorecon to put the labels on disk.
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251 semanage fcontext -a -t rwho_spool_t '/srv/myrwho_content(/.*)?'
252 restorecon -R -v /srv/myrwho_content
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254 Note: SELinux often uses regular expressions to specify labels that
255 match multiple files.
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257 The following file types are defined for rwho:
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261 rwho_exec_t
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263 - Set files with the rwho_exec_t type, if you want to transition an
264 executable to the rwho_t domain.
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268 rwho_initrc_exec_t
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270 - Set files with the rwho_initrc_exec_t type, if you want to transition
271 an executable to the rwho_initrc_t domain.
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275 rwho_log_t
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277 - Set files with the rwho_log_t type, if you want to treat the data as
278 rwho log data, usually stored under the /var/log directory.
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282 rwho_spool_t
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284 - Set files with the rwho_spool_t type, if you want to store the rwho
285 files under the /var/spool directory.
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289 Note: File context can be temporarily modified with the chcon command.
290 If you want to permanently change the file context you need to use the
291 semanage fcontext command. This will modify the SELinux labeling data‐
292 base. You will need to use restorecon to apply the labels.
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296 semanage fcontext can also be used to manipulate default file context
297 mappings.
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299 semanage permissive can also be used to manipulate whether or not a
300 process type is permissive.
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302 semanage module can also be used to enable/disable/install/remove pol‐
303 icy modules.
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305 semanage port can also be used to manipulate the port definitions
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307 semanage boolean can also be used to manipulate the booleans
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310 system-config-selinux is a GUI tool available to customize SELinux pol‐
311 icy settings.
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315 This manual page was auto-generated using sepolicy manpage .
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319 selinux(8), rwho(8), semanage(8), restorecon(8), chcon(1), sepolicy(8)
320 , setsebool(8)
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324rwho 19-04-25 rwho_selinux(8)