If you get “no matching key exchange method found. Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1”

Do the following. Oh and Cisco and all you other lame asses UPDATE YOUR SSH ALGOS!!!

nano ~/.ssh/config

Host *
    KexAlgorithms +diffie-hellman-group14-sha1
    HostKeyAlgorithms +ssh-rsa

Then save and connect!!