.sshconfig

Host *
	ServerAliveInterval 30
	ServerAliveCountMax 2
	ControlPath ~/.ssh/master-%r@%h:%p
	ControlMaster auto

fastssh.sh

#!/bin/bash

SSH_OPTIONS=" -MNf"

export AUTOSSH_GATETIME=0
export AUTOSSH_PORT=0

function makefast {
        HOST=$1
        shift
        ADDITIONAL_ARGS=$@

        CMD="autossh -M 0 -f -- $HOST $SSH_OPTIONS $ADDITIONAL_ARGS"
        `$CMD`
}

makefast bamboo@bamboo
makefast gerrit
makefast jira