Dynamic DNS Update Client for Linux Keep your current IP address in sync with your No-IP host or domain Default behavior is to check every 5 minutes. NOTE: This script requires network access Usage: noip-duc -g myhostname.ddns.net -u username -p password If you’re using DDNS Keys use all.ddnskey.com and DDNS Key Username/Password. noip-duc -g all.ddnskey.com --username --password