Posts tagged “nat”
What a DERP relayed connection means and how to go direct
A DERP relayed connection means no direct path was found. Why a pair lands on a relay, in the order the causes occur, and how to get it back to direct.
Remote desktop without port forwarding or an open 3389
Remote desktop without port forwarding: both ends dial out, hole-punch through NAT, fall back to a relay that sees only ciphertext, and run on TLS 443 alone.
What NAT traversal is, and how two machines pick a path through NAT
What NAT traversal means, the ladder from LAN to hole punching to a TLS 443 floor, why NAT-type guesses fail, and how to see which path a pair is on.
Why remote desktop is slow, and the one check to run first
A sluggish remote desktop is almost always a relayed pair. One command tells you if the session is on LAN, Direct or Relay, then the causes in field order.
SSH into a machine behind NAT without port forwarding or sshd
SSH to a machine behind NAT with no router port forward, no sshd and nothing listening, Windows included. How to turn it on, and why there is no -R.