Include ~/.ssh/host_specific_config
+Include ~/.ssh/config.d/*.conf
# Debian general configuration
Host *.debian.org
IdentityFile ~/.ssh/identity_debian
UserKnownHostsFile ~/.ssh/known_hosts_debian
+ VerifyHostKeyDNS yes
# donarmstrong.com general configuration
Host *.donarmstrong.com
User don
Host *
ControlMaster auto
ControlPath ~/tmp/%h_%p_%r
+ ControlPersist 120