admin_crontab_selinux.8 - Online Linux Manual Page

admin_crontab_selinux - Online Linux Manual PageSection : 8
Updated : 21-04-01
Source : admin_crontab
Note : SELinux Policy admin_crontab

NAMEadmin_crontab_selinux − Security Enhanced Linux Policy for the admin_crontab processes

DESCRIPTIONSecurity-Enhanced Linux secures the admin_crontab processes via flexible mandatory access control. The admin_crontab processes execute with the admin_crontab_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 admin_crontab_t

ENTRYPOINTSThe admin_crontab_t SELinux type can be entered via the crontab_exec_t file type. The default entrypoint paths for the admin_crontab_t domain are the following: /usr/bin/(f)?crontab, /usr/bin/at, /usr/sbin/fcronsighup, /usr/libexec/fcronsighup

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 admin_crontab policy is very flexible allowing users to setup their admin_crontab processes in as secure a method as possible. The following process types are defined for admin_crontab: admin_crontab_tNote: semanage permissive -a admin_crontab_t can be used to make the process type admin_crontab_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. admin_crontab policy is extremely flexible and has several booleans that allow you to manipulate the policy and run admin_crontab with the tightest access possible. If you want to enable extra rules in the cron domain to support fcron, you must turn on the fcron_crond boolean. Disabled by default. setsebool -P fcron_crond 1 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 admin_crontab_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.
faillog_t /var/log/btmp.*
/var/log/faillog.*
/var/log/tallylog.*
/var/run/faillock(/.*)?

security_t /selinux

var_auth_t /var/ace(/.*)?
/var/rsa(/.*)?
/var/lib/abl(/.*)?
/var/lib/rsa(/.*)?
/var/lib/pam_ssh(/.*)?
/var/lib/pam_shield(/.*)?
/var/opt/quest/vas/vasd(/.*)?
/var/lib/google-authenticator(/.*)?

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), admin_crontab(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8) 0

Johanes Gumabo

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