pfSense

		// Use fetch to grab data since these may be large files, we don't want to process them through PHP if we can help it.

		mwexec("/usr/bin/fetch -T 5 -q -o " . escapeshellarg($urltable_filename . ".tmp") . " " . escapeshellarg($url));

		// Remove comments. Might need some grep-fu to only allow lines that look like IPs/subnets

		conf_mount_ro();

		if (filesize($urltable_filename)) {

			return true;