25.2. 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