A step by step HOWTO covering Squid3 transparent proxying on an OpenVPN server. Also covers PKI setup for OpenVPN. Before my last extended period travelling and using public networks, I decided to set up a new low spec virtual machine on one of my hosted servers. I trust my datacenter and their uplinks more than I trust the free WiFi and public networks I travel through, and so while all my internet traffic is being routed over an encrypted tunnel to my dedicated server, I’m a lot happier. I threw Squid3 into the mix, as it caches common assets and the sites I visit. This speeds up my web access and page load time.