Security-Enhanced Linux secures the openvpn processes via flexible mandatory access control.
If you want to allow openvpn to read home directories, you must turn on the openvpn_enable_homedirs boolean.
setsebool -P openvpn_enable_homedirs 1
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd serve for the openvpn_t, you must turn on the authlogin_nsswitch_use_ldap boolean.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow confined applications to run with kerberos for the openvpn_t, you must turn on the kerberos_enabled boolean.
setsebool -P kerberos_enabled 1
You can see the context of a file using the -Z option to lsP Policy governs the access confined processes have to these files. SELinux openvpn policy is very flexible allowing users to setup their openvpn processes in as secure a method as possible.
The following file types are defined for openvpn:
openvpn_etc_rw_t
- Set files with the openvpn_etc_rw_t type, if you want to treat the files as openvpn etc read/write content.
openvpn_etc_t
- Set files with the openvpn_etc_t type, if you want to store openvpn files in the /etc directories.
openvpn_exec_t
- Set files with the openvpn_exec_t type, if you want to transition an executable to the openvpn_t domain.
openvpn_initrc_exec_t
- Set files with the openvpn_initrc_exec_t type, if you want to transition an executable to the openvpn_initrc_t domain.
openvpn_tmp_t
- Set files with the openvpn_tmp_t type, if you want to store openvpn temporary files in the /tmp directories.
openvpn_var_log_t
- Set files with the openvpn_var_log_t type, if you want to treat the data as openvpn var log data, usually stored under the /var/log directory.
openvpn_var_run_t
- Set files with the openvpn_var_run_t type, if you want to store the openvpn 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.
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 openvpn policy is very flexible allowing users to setup their openvpn processes in as secure a method as possible.
The following port types are defined for openvpn:
Default Defined Ports: tcp 1194 udp 1194
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux openvpn policy is very flexible allowing users to setup their openvpn processes in as secure a method as possible.
The following process types are defined for openvpn:
openvpn_t
Note: semanage permissive -a PROCESS_TYPE can be used to make a process type permissive. Permissive process types are not denied access by SELi