In the newest versions of
sshd the default available ciphers changed. If You are generating a lot of transfer through ssh You’ll probably want to speed id up by using a less resource consuming cipher.
ssh -XC -c blowfish-cbc,arcfour user@remote_host ssh_dispatch_run_fatal: no matching cipher found
The fastest ciphers like blowfish or arcfour aren’t enabled by default now. You have to add them to the