config

# SSH Connection pooling for faster additional connections to a machine
ControlMaster auto
ControlPath /tmp/ssh_mux_%h_%p_%r

# This makes subsequent connections go faster
ControlPersist 2h

# Make it so ssh-ing from one server to another passes keys around automagically
ForwardAgent yes

# Get rid of SSH connection delays
GSSAPIAuthentication no

# Stop timing out connections
ServerAliveInterval 300
ServerAliveCountMax 20

# Use less encryption on servers I cant get to off-network (blowfish-cbc is the fastest supported encryption by rubys net::ssh for capistrano)
Host nf* 10.* 172.* 192.168.*
  Ciphers blowfish-cbc