tia-proxies-keepalive.sh

#!/bin/bash
GLOBAL_PARAMETERS='-N -o ControlMaster=no -o ControlPath=none'
BIND_IP=127.0.0.1
REOPEN_SLEEP=5


######
# FUNCTIONS
#
function supervise_proxy()
{
    host=$1; shift
    user=$1; shift
    port=$1; shift

    while true; do
        echo "Starting SOCKS5 proxy... ${host} @ ${BIND_IP}:$port"
        ssh ${user}@${host} -D ${BIND_IP}:$port ${GLOBAL_PARAMETERS} $@
        echo "Proxy ${host} closed. RC=$?"
        sleep ${REOPEN_SLEEP}
    done
    return $?
}

function ctrl_c ()
{
    if [ ! "${pids}" == '' ]; then
        kill ${pids}
        echo
    fi
    echo -e '\nABORTED'
    exit 2
}


######
# INIT
#
export pids=

# Set CTRL+C handle
trap ctrl_c INT


######
# PROXYES
#
# Template for proxies (required both of 2 lines):
#supervise_proxy hostname username local_port [other_ssh_parameters] &
#pids="${pids} $!"

supervise_proxy foo.bar.com superuser 25222 &
pids="${pids} $!"

supervise_proxy foo2.bar.com superman  25223 -i ~/my_private_key.pem &
pids="${pids} $!"


######
# WAITING FOR TERMINATE
#
while true;
do
    sleep 60
done

exit 0