DNS is a short for Domain Name System. They are responsible for translating domain names to their binary values which are the internet’s language to know who/where to send the information. This service is responsible for all your internet activity, without it you will not be able to browse to websites. Understanding the importance of it, all ISPs, servers, systems provides DNS to their clients which helps them access websites. At the same time, DNS is also provided by Google known as public dns, since it’s Google the chances of their DNS going down are minimum and if you do decide to switch your DNS to Google; you will usually have a faster response time from websites.
If a DNS is down, you will see errors such as “DNS_PROBE_FINISHED_NXDOMAIN” on Google Chrome. Other browsers may also indicate similar error messages related to DNS.
The aim of this guide is to show you how you can use Google’s or other PUBLIC DNS Servers which never goes down and is faster then the ISP’s own DNS Servers.
How to Change the DNS Settings on A MAC OS X
To change the DNS Settings, click the Apple icon on the top left and choose System Preferences.
From the left pane, choose your Active Network Connection and then click the Advanced Tab.
Then, click the + icon and add these two dns servers listed below
Then click OK. Once done, you will have your DNS updated. Any sites you now surf will be queried via the Google DNS.