Update Dynamic DNS record hosted with DNSMadeEasy with current local IP address. This is useful for local web testing on mobile devices on the same WiFi Network

ddns.sh

#!/bin/bash

# Auth/DNS Record Details
USERNAME="USERNAME"
PASSWORD="PASSWORD"
ID="DNS-RECORD-ID"

# Get the IP Address
IP=$(ifconfig | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1')

# Make the API Request
URL="http://www.dnsmadeeasy.com/servlet/updateip?username=${USERNAME}&password=${PASSWORD}&id=${ID}&ip=${IP}";
curl -s "${URL}" > /dev/null

# Clear the local cache
dscacheutil -flushcache