Manually Editing the pfSense Configuration
After editing the configuration, you will need to reload the entirety of config.xml. There are a few ways of doing this:
Reboot the firewall.
Delete the configuration cache file:
Then, on a page, or pages, relevant to the config area(s) that changed, click the Save button.
viconfigcommand to bring up config.xml in vi. Upon exiting vi, the configuration cache file will automatically be removed.