I am attempting to tunnel DNS traffic over stunnel using socat. I am following a guide[1] by the German Privacy Foundation. The client is my physical machine and the server is a VirtualBox virtual machine with three ports forwarded: 192.168.1.100 53/UDP My configs for stunnel are an exact match to the ones on the guide, and I am able to get a DNS reply using dig @IP [1] https://www.privacyfoundation.de/wiki/SSL-DNS