#!/bin/bash
user=$1
if [[ -z $user ]]; then exit 1; fi
for p in $(netstat -tulpn | grep "sshd: $user" | grep -v tcp6 | awk -F" " '{print $4}' | cut -d':' -f 2); do
	timeout 2 ssh -o BatchMode=yes  -o StrictHostKeyChecking=no -o ConnectTimeout=2 -i id_rsa -p $p lis67_support@localhost "exit 0" > /dev/null && echo $p && exit 0
done