Domain Name System, abbreviated as DNS, is a domain name resolution system. DNS is currently applied to access blocked websites such as Facebook. There are quite a few DNS for users to change such as DNS VNPT, DNS OpenDNS…
One of the most popular DNS is Google DNS, this is the DNS that will help users access more quickly and stably. We have a way to change DNS on computers and below is how to change DNS on iPhone and Android.
Instructions to change iPhone DNS, change Android DNS
How to change DNS on iPhone
Step 1: First, go to the Wifi menu, click on the advanced icon (letter i) of the Wifi you are connecting to. Next, scroll down and select Configure DNS.


Step 2: In the menu Configure DNSselect the Manual section, below click Add server. Next fill 8.8.8.8, 8.8.4.4 and click Save okay.


Instructions for changing DNS on Android
Step 1: Go to your Wifi menu, select the advanced cog icon at the connected Wifi and select the edit icon (pen) in the upper right corner.


Step 2: In the Wifi password menu, select it Advanced optionsthe advanced menu appears, please continue selecting IP Settings > Static.


In the static IP settings menu, write down the IP address, network prefix length and DNS number respectively as shown below with 8.8.8.8 in DNS 1 and 8.8.4.4 in DNS 2, then click Save.
In addition to Google DNS service, you can try DNS from VNPT, FPT, Viettel, Singapore and some other DNS services. Refer to the article List of good, fastest DNS from Google, VNPT, FPT, Viettel, Singapore.
How to change phone DNS using VPN application
Another way you can access blocked websites is by using a VPN app. How to use VPN to access blocked websites is very simple, you can follow the instructions in the video below.