Include /etc/ssh/ssh_config.d/*.conf

Host *
  ControlPath			~/.ssh/%u@%l->%r@%h:%p
  SendEnv			LANG LC_*
  VerifyHostKeyDNS		yes
  VisualHostKey			yes

Host *.slackware.uk.internal *.slackware.uk.net
  GSSAPIAuthentication		yes
  GSSAPIDelegateCredentials	yes
  Port				25422