NAME¶

fail2ban_client_selinux - Security Enhanced Linux Policy for the fail2ban_client processes

DESCRIPTION¶

Security-Enhanced Linux secures the fail2ban_client processes via flexible mandatory access control.

The fail2ban_client processes execute with the fail2ban_client_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 fail2ban_client_t

ENTRYPOINTS¶

The fail2ban_client_t SELinux type can be entered via the fail2ban_client_exec_t file type.

The default entrypoint paths for the fail2ban_client_t domain are the following:

/usr/bin/fail2ban-client

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 ps

Policy governs the access confined processes have to files. SELinux fail2ban_client policy is very flexible allowing users to setup their fail2ban_client processes in as secure a method as possible.

The following process types are defined for fail2ban_client:

fail2ban_client_t

Note: semanage permissive -a fail2ban_client_t can be used to make the process type fail2ban_client_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.

BOOLEANS¶

SELinux policy is customizable based on least access required. fail2ban_client policy is extremely flexible and has several booleans that allow you to manipulate the policy and run fail2ban_client with the tightest access possible.

If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn on the authlogin_nsswitch_use_ldap boolean. Disabled by default.

setsebool -P authlogin_nsswitch_use_ldap 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 confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by default.

setsebool -P kerberos_enabled 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

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

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 ls

Policy governs the access confined processes have to these files. SELinux fail2ban_client policy is very flexible allowing users to setup their fail2ban_client processes in as secure a method as possible.

The following file types are defined for fail2ban_client:

fail2ban_client_exec_t

- Set files with the fail2ban_client_exec_t type, if you want to transition an executable to the fail2ban_client_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.

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 auto-generated using sepolicy manpage .

SEE ALSO¶

selinux(8), fail2ban_client(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8)