Comment Re:DNS and ICMP Tunnels (Score 1) 318
This would not work. All the firewalls that I've encountered are configured to only allow UDP port 53. If you just have ssh listen on port 53 it will still be blocked because ssh uses TCP.
To do it properly, you really need to have the correct client and server that will make real DNS or ICMP packets that contain your data as a payload.
To do it properly, you really need to have the correct client and server that will make real DNS or ICMP packets that contain your data as a payload.