Red Hat Training

A Red Hat training course is available for Red Hat Enterprise Linux

24.2. Types

The main permission control method used in SELinux targeted policy to provide advanced process isolation is Type Enforcement. All files and processes are labeled with a type: types define a SELinux domain for processes and a SELinux type for files. SELinux policy rules define how types access each other, whether it be a domain accessing a type, or a domain accessing another domain. Access is only allowed if a specific SELinux policy rule exists that allows it.
The following types are used with DHCP:
dhcp_etc_t
This type is mainly used for files in the /etc directory, including configuration files.
dhcpd_var_run_t
This type is used for the PID file for dhcpd, in the /var/run/ directory.
dhcpd_exec_t
This type is used for transition of DHCP executable files to the dhcpd_t domain.
dhcpd_initrc_exec_t
This type is used for transition of DHCP executable files to the dhcpd_initrc_t domain.

Note

To see the full list of files and their types for dhcpd, enter the following command:
~]$ grep dhcp /etc/selinux/targeted/contexts/files/file_contexts