Because modern ssh has disabled some older less secure encryption protocols, by default you will not be able to connect with the shell server ‘eskimo.com’.  To fix this add the following to your /etc/ssh/ssh_config file:

Host eskimo.com
     KexAlgorithms +diffie-hellman-group1-sha1

     This will enable diffie-hellman-group1-sha1 encryption protocol just for this specific host.