How can I access the webGUI from the WAN?
From PFSenseDocs
This is disabled by default for security reasons.
To enable this, first switch to HTTPS if you haven't already (System -> General Setup, change webGUI protocol). Note you may need to change the port number used by the webGUI if you port forward HTTPS on your WAN IP to an internal machine.
Then add a firewall rule on your WAN allowing the appropriate source(s) ("any" is highly discouraged for security reasons) to the destination WAN IP and port your webGUI is using.
