[QUICK] Auto Update DNS-O-Matic & Open DNS IP in macOS/Linux

updater.sh

#!/bin/bash

STATUS="Offline"
REQ_STATUS="Online"

#Check if connected to the internet
nc -z 8.8.8.8 53  >/dev/null 2>&1

online=$?
if [ $online -eq 0 ]; then
    STATUS="Online"
else
    STATUS="Offline"
fi

if [ "$STATUS" = "$REQ_STATUS" ]; then

    IP="$(/usr/bin/dig myip.opendns.com +short)"
    echo ${IP}
    REQUEST="$(curl --request POST --url https://Muhaddisshah%40gmail.com:gD%[email protected]/nic/update?hostname=all.dnsomatic.com&myip={$IP}&wildcard=NOCHG&mx=NOCHG&backmx=NOCHG)"
    echo ${REQUEST}

else

    echo "Your internet status is " ${STATUS}

fi

# You can set up automator in macOS and cron job in Linux environment to update the IP address every X minutes
# Note that this will update all services registered with DNS-O-Matic to the new IP address
# DNS-O-Matic API docs: https://www.dnsomatic.com/docs/api