Host 192.168.*.*
  ProxyCommand ssh -W %h:%p ess
  IdentityFile ~/.ssh/***
  User ***
  ControlMaster auto
  ControlPath ~/.ssh/mac-%r@%h:%p
  ControlPersist 1h

Host ess
  Hostname ssh0.esss.dk
  User ***
  IdentityFile ~/.ssh/***
  ControlMaster auto
  ControlPath ~/.ssh/ansible-%r@%h:%p
  ControlPersist 1h
