I'm trying to compare these 2 solutions when it comes to content blocking :
1 - A pFSense appliance with SQUID and SQUIDGUARD packages configured
2 - A Watchguard FW that uses Websense
So, in order to block something like https://www.facebook.com, using Squidguard aparently I have to perform a MITM attack , or give up on the option of using the Transparent Proxy mode, but the Watchguard manages to block the very same page without losing the Transparent proxy option. Can someone help me understand how does that work, please?