SSH connection to old servers
When you are on a newer Linux distribution and try to connect to older server, you might run into a problem and get message like:
ssh [email protected] Unable to negotiate with xxx.xx.xxx.xxx port 22: no matching key exchange method found. Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
Something your SSH client and SSH daemon on the server can not agree on.
In your user’s folder (on client machine) create file called ~/.ssh/config
Put the following settings and adjust them as necessary:
Host server-alias HostName full-server-name.com User your_username Port 22 PubkeyAcceptedKeyTypes +ssh-rsa HostKeyAlgorithms ssh-rsa KexAlgorithms diffie-hellman-group1-sha1 # If you have custom SSH key, you might want to specify it too Host * IdentityFile ~/Sites/privatekey.pem
Now try to simply run
Hope it helps!