1numad_selinux(8) SELinux Policy numad numad_selinux(8)
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6 numad_selinux - Security Enhanced Linux Policy for the numad processes
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9 Security-Enhanced Linux secures the numad processes via flexible manda‐
10 tory access control.
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12 The numad processes execute with the numad_t SELinux type. You can
13 check if you have these processes running by executing the ps command
14 with the -Z qualifier.
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16 For example:
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18 ps -eZ | grep numad_t
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23 The numad_t SELinux type can be entered via the numad_exec_t file type.
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25 The default entrypoint paths for the numad_t domain are the following:
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27 /usr/bin/numad
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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 numad policy is very flexible allowing users to setup their numad pro‐
37 cesses in as secure a method as possible.
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39 The following process types are defined for numad:
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41 numad_t
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43 Note: semanage permissive -a numad_t can be used to make the process
44 type numad_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. numad
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run numad 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 The SELinux process type numad_t can manage files labeled with the fol‐
139 lowing file types. The paths listed are the default paths for these
140 file types. Note the processes UID still need to have DAC permissions.
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142 cgroup_t
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144 /sys/fs/cgroup
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146 cluster_conf_t
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148 /etc/cluster(/.*)?
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150 cluster_var_lib_t
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152 /var/lib/pcsd(/.*)?
153 /var/lib/cluster(/.*)?
154 /var/lib/openais(/.*)?
155 /var/lib/pengine(/.*)?
156 /var/lib/corosync(/.*)?
157 /usr/lib/heartbeat(/.*)?
158 /var/lib/heartbeat(/.*)?
159 /var/lib/pacemaker(/.*)?
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161 cluster_var_run_t
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163 /var/run/crm(/.*)?
164 /var/run/cman_.*
165 /var/run/rsctmp(/.*)?
166 /var/run/aisexec.*
167 /var/run/heartbeat(/.*)?
168 /var/run/corosync-qnetd(/.*)?
169 /var/run/corosync-qdevice(/.*)?
170 /var/run/cpglockd.pid
171 /var/run/corosync.pid
172 /var/run/rgmanager.pid
173 /var/run/cluster/rgmanager.sk
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175 numad_var_log_t
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177 /var/log/numad.log.*
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179 numad_var_run_t
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181 /var/run/numad.pid
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183 root_t
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185 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
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187 /initrd
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189 sysfs_t
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191 /sys(/.*)?
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195 SELinux requires files to have an extended attribute to define the file
196 type.
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198 You can see the context of a file using the -Z option to ls
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200 Policy governs the access confined processes have to these files.
201 SELinux numad policy is very flexible allowing users to setup their
202 numad processes in as secure a method as possible.
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204 STANDARD FILE CONTEXT
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206 SELinux defines the file context types for the numad, if you wanted to
207 store files with these types in a diffent paths, you need to execute
208 the semanage command to sepecify alternate labeling and then use
209 restorecon to put the labels on disk.
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211 semanage fcontext -a -t numad_var_run_t '/srv/mynumad_content(/.*)?'
212 restorecon -R -v /srv/mynumad_content
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214 Note: SELinux often uses regular expressions to specify labels that
215 match multiple files.
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217 The following file types are defined for numad:
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221 numad_exec_t
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223 - Set files with the numad_exec_t type, if you want to transition an
224 executable to the numad_t domain.
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228 numad_unit_file_t
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230 - Set files with the numad_unit_file_t type, if you want to treat the
231 files as numad unit content.
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235 numad_var_log_t
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237 - Set files with the numad_var_log_t type, if you want to treat the
238 data as numad var log data, usually stored under the /var/log direc‐
239 tory.
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243 numad_var_run_t
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245 - Set files with the numad_var_run_t type, if you want to store the
246 numad files under the /run or /var/run directory.
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250 Note: File context can be temporarily modified with the chcon command.
251 If you want to permanently change the file context you need to use the
252 semanage fcontext command. This will modify the SELinux labeling data‐
253 base. You will need to use restorecon to apply the labels.
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257 semanage fcontext can also be used to manipulate default file context
258 mappings.
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260 semanage permissive can also be used to manipulate whether or not a
261 process type is permissive.
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263 semanage module can also be used to enable/disable/install/remove pol‐
264 icy modules.
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266 semanage boolean can also be used to manipulate the booleans
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269 system-config-selinux is a GUI tool available to customize SELinux pol‐
270 icy settings.
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274 This manual page was auto-generated using sepolicy manpage .
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278 selinux(8), numad(8), semanage(8), restorecon(8), chcon(1), sepolicy(8)
279 , setsebool(8)
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283numad 19-04-25 numad_selinux(8)