systemd_networkd_selinux.8 - Online Linux Manual Page

systemd_networkd_selinux - Online Linux Manual PageSection : 8
Updated : 21-04-01
Source : systemd_networkd
Note : SELinux Policy systemd_networkd

NAMEsystemd_networkd_selinux − Security Enhanced Linux Policy for the systemd_networkd processes

DESCRIPTIONSecurity-Enhanced Linux secures the systemd_networkd processes via flexible mandatory access control. The systemd_networkd processes execute with the systemd_networkd_t SELinux type. You can check if you have these processes running by executing the ps command with the −Z qualifier. For example: ps -eZ | grep systemd_networkd_t

ENTRYPOINTSThe systemd_networkd_t SELinux type can be entered via the systemd_networkd_exec_t file type. The default entrypoint paths for the systemd_networkd_t domain are the following: /usr/lib/systemd/systemd-networkd

PROCESS TYPESSELinux defines process types (domains) for each process running on the system You can see the context of a process using the −Z option to ps Policy governs the access confined processes have to files. SELinux systemd_networkd policy is very flexible allowing users to setup their systemd_networkd processes in as secure a method as possible. The following process types are defined for systemd_networkd: systemd_networkd_tNote: semanage permissive -a systemd_networkd_t can be used to make the process type systemd_networkd_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.

BOOLEANSSELinux policy is customizable based on least access required. systemd_networkd policy is extremely flexible and has several booleans that allow you to manipulate the policy and run systemd_networkd with the tightest access possible. If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default. setsebool -P fips_mode 1 If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default. setsebool -P nis_enabled 1

MANAGED FILESThe SELinux process type systemd_networkd_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions.
cluster_conf_t /etc/cluster(/.*)?

cluster_var_lib_t /var/lib/pcsd(/.*)?
/var/lib/cluster(/.*)?
/var/lib/openais(/.*)?
/var/lib/pengine(/.*)?
/var/lib/corosync(/.*)?
/usr/lib/heartbeat(/.*)?
/var/lib/heartbeat(/.*)?
/var/lib/pacemaker(/.*)?

cluster_var_run_t /var/run/crm(/.*)?
/var/run/cman_.*
/var/run/rsctmp(/.*)?
/var/run/aisexec.*
/var/run/heartbeat(/.*)?
/var/run/pcsd-ruby.socket
/var/run/corosync-qnetd(/.*)?
/var/run/corosync-qdevice(/.*)?
/var/run/corosync.pid
/var/run/cpglockd.pid
/var/run/rgmanager.pid
/var/run/cluster/rgmanager.sk

root_t /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd

systemd_networkd_var_run_t /var/run/systemd/netif(/.*)?

FILE CONTEXTSSELinux requires files to have an extended attribute to define the file type. You can see the context of a file using the −Z option to ls Policy governs the access confined processes have to these files. SELinux systemd_networkd policy is very flexible allowing users to setup their systemd_networkd processes in as secure a method as possible. STANDARD FILE CONTEXT SELinux defines the file context types for the systemd_networkd, if you wanted to store files with these types in a diffent paths, you need to execute the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk. semanage fcontext -a -t systemd_networkd_var_run_t '/srv/mysystemd_networkd_content(/.*)?'
restorecon -R -v /srv/mysystemd_networkd_content Note: SELinux often uses regular expressions to specify labels that match multiple files. The following file types are defined for systemd_networkd: systemd_networkd_exec_t- Set files with the systemd_networkd_exec_t type, if you want to transition an executable to the systemd_networkd_t domain. systemd_networkd_unit_file_t- Set files with the systemd_networkd_unit_file_t type, if you want to treat the files as systemd networkd unit content. systemd_networkd_var_run_t- Set files with the systemd_networkd_var_run_t type, if you want to store the systemd networkd files under the /run or /var/run directory. Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.

COMMANDSsemanage fcontext can also be used to manipulate default file context mappings. semanage permissive can also be used to manipulate whether or not a process type is permissive. semanage module can also be used to enable/disable/install/remove policy modules. semanage boolean can also be used to manipulate the booleans system-config-selinux is a GUI tool available to customize SELinux policy settings.

AUTHORThis manual page was auto-generated using sepolicy manpage".

SEE ALSOselinux(8), systemd_networkd(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8) 0

Johanes Gumabo

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