#!/bin/bash
# /usr/bin/nohup /root/tcp-watchdog.bash </dev/null &>/dev/null & 

counter=0
while true; do
    if ping -c 1 -W 5 1.1.1.1 > /dev/null 2>&1; then
        counter=0
    else
        ((counter++))
        if [ "$counter" -gt 60 ]; then
            logger 'tcp-watchdog: failed for 30 minutes, rebooting...'
            reboot
        fi
    fi
    sleep 30
done