courier_tcpd_seliSELinux Policy documentation for couricourier_tcpd_selinux(8)

NAME courier_tcpd_selinux - Security Enhanced Linux Policy for the courier_tcpd processes

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

The courier_tcpd processes execute with the courier_tcpd_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 courier_tcpd_t

ENTRYPOINTS The courier_tcpd_t SELinux type can be entered via the "courier_tcpd_exec_t" file type. The default entrypoint paths for the courier_tcpd_t domain are the following:"

/usr/lib(64)?/courier/couriertcpd, /usr/sbin/couriertcpd

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 courier_tcpd policy is very flexible allowing users to setup their courier_tcpd processes in as secure a method as possible.

The following process types are defined for courier_tcpd:

courier_tcpd_t

Note: semanage permissive -a courier_tcpd_t

can be used to make the process type courier_tcpd_t permissive. Permis- sive process types are not denied access by SELinux. AVC messages will still be generated.

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 courier_tcpd policy is very flexible allowing users to setup their courier_tcpd processes in as secure a method as possible.

The following file types are defined for courier_tcpd:

courier_tcpd_exec_t

- Set files with the courier_tcpd_exec_t type, if you want to transi- tion an executable to the courier_tcpd_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.

MANAGED FILES The SELinux process type courier_tcpd_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 per- missions.

courier_var_lib_t

/var/lib/courier(/.*)?

courier_var_run_t

/var/run/courier(/.*)?

initrc_tmp_t

mnt_t

/mnt(/[^/]*) /mnt(/[^/]*)? /rhev(/[^/]*)? /media(/[^/]*) /media(/[^/]*)? /etc/rhgb(/.*)? /media/.hal-.* /net /afs /misc /rhev

root_t

/ /initrd

tmp_t

/tmp /usr/tmp /var/tmp /var/tmp/vi.recover

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 pol- icy modules.

system-config-selinux is a GUI tool available to customize SELinux pol- icy settings.

AUTHOR This manual page was auto-generated using sepolicy manpage by mgrepl.

SEE ALSO selinux(8), courier_tcpd(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , courier_authdaemon_selinux(8), courier_pcp_selinux(8), courier_pop_selinux(8), courier_sqwebmail_selinux(8)

courier_tcpd 13-01-04 courier_tcpd_selinux(8)