Workstation -> server1 -> server2

access from workstation to server2 via server1

If DNS not avaiable please create DNS Locally in Workstation, Server1 and Server2

echo " Server1" >> /etc/hosts
echo " Server2" >> /etc/hosts

modify file config ssh :

Host server1
       IdentityFile ~/.ssh/id_rsa
       user senops
Host server2
       ProxyCommand ssh -q server1 nc server2 22
       user userserver2

How Play?

ssh server2