nscd_selinux

Section: nscd SELinux Policy documentation (8)
Updated: nscd
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NAME

nscd_selinux - Security Enhanced Linux Policy for the nscd processes

DESCRIPTION

SELinux Linux secures nscd (Name service cache daemon) processes via flexible mandatory access control.

BOOLEANS

SELinux policy is customizable based on least access required. nscd policy is extremely flexible and has several booleans that allow you to manipulate the policy and run nscd with the tightest access possible.

If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean.

setsebool -P nscd_use_shm 1

FILE CONTEXTS

SELinux 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 lsP Policy governs the access confined processes have to these files. SELinux nscd policy is very flexible allowing users to setup their nscd processes in as secure a method as possible.

The following file types are defined for nscd:

nscd_exec_t

- Set files with the nscd_exec_t type, if you want to transition an executable to the nscd_t domain.

nscd_initrc_exec_t

- Set files with the nscd_initrc_exec_t type, if you want to transition an executable to the nscd_initrc_t domain.

nscd_log_t

- Set files with the nscd_log_t type, if you want to treat the data as nscd log data, usually stored under the /var/log directory.

nscd_var_run_t

- Set files with the nscd_var_run_t type, if you want to store the nscd files under the /run directory.

Paths:: /var/run/nscd.pid, /var/run/nscd(/.*)?, /var/db/nscd(/.*)?, /var/run/.nscd_socket, /var/cache/nscd(/.*)?

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.

PROCESS TYPES

SELinux defines process types (domains) for each process running on the system

You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux nscd policy is very flexible allowing users to setup their nscd processes in as secure a method as possible.

The following process types are defined for nscd:

nscd_t

Note: semanage permissive -a PROCESS_TYPE can be used to make a process type permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.

COMMANDS

semanage 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.

AUTHOR

This manual page was autogenerated by genman.py.

This document was created by man2html, using the manual pages.
Time: 05:34:28 GMT, December 24, 2015