• Flush Google's DNS Cache for Your Domain

    Posted in Linux Network Admin Tips, Network Security Tips on Oct 14, 2019

    Literally millions of people subscribe to Google's Public DNS servers of 8.8.8.8 and 8.8.4.4. Suppose you have just made changes to your domain DNS records on your Authoritive DNS Servers and you want to get the propagation to go though quickly. Unless you have set your TTL (Time to Live) down to a low number like 5 minutes, it could take a day or more to propagate.