ctdbd_selinux(8) SELinux Policy documentation for ctdbd ctdbd_selinux(8)

NAME ctdbd_selinux - Security Enhanced Linux Policy for the ctdbd processes

DESCRIPTION Security-Enhanced Linux secures the ctdbd processes via flexible manda- tory access control.

The ctdbd processes execute with the ctdbd_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 ctdbd_t

ENTRYPOINTS The ctdbd_t SELinux type can be entered via the "mtrr_device_t,unla- beled_t,proc_type,sysctl_type,filesystem_type,file_type,ctdbd_exec_t" file types. The default entrypoint paths for the ctdbd_t domain are the following:"

/dev/cpu/mtrr, all files on the system, /usr/sbin/ctdbd

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 ctdbd policy is very flexible allowing users to setup their ctdbd pro- cesses in as secure a method as possible.

The following process types are defined for ctdbd:

ctdbd_t

Note: semanage permissive -a ctdbd_t

can be used to make the process type ctdbd_t permissive. Permissive 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 ctdbd policy is very flexible allowing users to setup their ctdbd processes in as secure a method as possible.

The following file types are defined for ctdbd:

ctdbd_exec_t

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

ctdbd_initrc_exec_t

- Set files with the ctdbd_initrc_exec_t type, if you want to transi- tion an executable to the ctdbd_initrc_t domain.

ctdbd_log_t

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

ctdbd_spool_t

- Set files with the ctdbd_spool_t type, if you want to store the ctdbd files under the /var/spool directory.

ctdbd_tmp_t

- Set files with the ctdbd_tmp_t type, if you want to store ctdbd tem- porary files in the /tmp directories.

ctdbd_var_lib_t

- Set files with the ctdbd_var_lib_t type, if you want to store the ctdbd files under the /var/lib directory.

ctdbd_var_run_t

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

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.

PORT TYPES SELinux defines port types to represent TCP and UDP ports.

You can see the types associated with a port by using the following command:

semanage port -l

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

The following port types are defined for ctdbd:

ctdb_port_t

Default Defined Ports: tcp 4379 udp 4379

MANAGED FILES The SELinux process type ctdbd_t can manage files labeled with the fol- lowing file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions.

file_type

all files on the system

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.

semanage port can also be used to manipulate the port definitions

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), ctdbd(8), semanage(8), restorecon(8), chcon(1), sepolicy(8)

ctdbd 13-01-04 ctdbd_selinux(8)