postfix_postqueue_selinux - Online Linux Manual PageSection : 8
Updated : 21-04-01
Source : postfix_postqueue
Note : SELinux Policy postfix_postqueue
NAMEpostfix_postqueue_selinux − Security Enhanced Linux Policy for the postfix_postqueue processes
DESCRIPTIONSecurity-Enhanced Linux secures the postfix_postqueue processes via flexible mandatory access control. The postfix_postqueue processes execute with the postfix_postqueue_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 postfix_postqueue_t
ENTRYPOINTSThe postfix_postqueue_t SELinux type can be entered via the postfix_postqueue_exec_t file type. The default entrypoint paths for the postfix_postqueue_t domain are the following: /usr/sbin/postqueue
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 postfix_postqueue policy is very flexible allowing users to setup their postfix_postqueue processes in as secure a method as possible. The following process types are defined for postfix_postqueue: postfix_postqueue_tNote: semanage permissive -a postfix_postqueue_t can be used to make the process type postfix_postqueue_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. postfix_postqueue policy is extremely flexible and has several booleans that allow you to manipulate the policy and run postfix_postqueue 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 postfix_postqueue_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.
anon_inodefs_t
postfix_var_run_t /var/spool/postfix/pid/.*
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 postfix_postqueue policy is very flexible allowing users to setup their postfix_postqueue processes in as secure a method as possible. The following file types are defined for postfix_postqueue: postfix_postqueue_exec_t- Set files with the postfix_postqueue_exec_t type, if you want to transition an executable to the postfix_postqueue_t domain. 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), postfix_postqueue(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8) 0
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