nrpe_selinux - Online Linux Manual PageSection : 8
Updated : 21-04-01
Source : nrpe
Note : SELinux Policy nrpe
NAMEnrpe_selinux − Security Enhanced Linux Policy for the nrpe processes
DESCRIPTIONSecurity-Enhanced Linux secures the nrpe processes via flexible mandatory access control. The nrpe processes execute with the nrpe_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 nrpe_t
ENTRYPOINTSThe nrpe_t SELinux type can be entered via the nrpe_exec_t file type. The default entrypoint paths for the nrpe_t domain are the following: /usr/bin/nrpe, /usr/sbin/nrpe
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 nrpe policy is very flexible allowing users to setup their nrpe processes in as secure a method as possible. The following process types are defined for nrpe: nrpe_tNote: semanage permissive -a nrpe_t can be used to make the process type nrpe_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. nrpe policy is extremely flexible and has several booleans that allow you to manipulate the policy and run nrpe 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 nagios/nrpe to call sudo from NRPE utils scripts, you must turn on the nagios_run_sudo boolean. Disabled by default. setsebool -P nagios_run_sudo 1
If you want to determine whether Nagios, NRPE can access nfs file systems, you must turn on the nagios_use_nfs boolean. Disabled by default. setsebool -P nagios_use_nfs 1
MANAGED FILESThe SELinux process type nrpe_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
faillog_t /var/log/btmp.*
/var/log/faillog.*
/var/log/tallylog.*
/var/run/faillock(/.*)?
lastlog_t /var/log/lastlog.*
nfs_t
nrpe_var_run_t
root_t /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd
security_t /selinux
sudo_db_t /var/db/sudo(/.*)?
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 nrpe policy is very flexible allowing users to setup their nrpe processes in as secure a method as possible. STANDARD FILE CONTEXT SELinux defines the file context types for the nrpe, 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 nrpe_var_run_t '/srv/mynrpe_content(/.*)?'
restorecon -R -v /srv/mynrpe_content Note: SELinux often uses regular expressions to specify labels that match multiple files. The following file types are defined for nrpe: nrpe_etc_t- Set files with the nrpe_etc_t type, if you want to store nrpe files in the /etc directories. nrpe_exec_t- Set files with the nrpe_exec_t type, if you want to transition an executable to the nrpe_t domain.
Paths: /usr/bin/nrpe, /usr/sbin/nrpe nrpe_var_run_t- Set files with the nrpe_var_run_t type, if you want to store the nrpe 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), nrpe(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8) 0
Johanes Gumabo
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