DNS is actually a server which converts domain names such as apple.com to its corresponding IP addresses, a pattern of numbers which is used to locate servers over the internet. As every system on internet having a unique IP address and the ISP itself having its own DNS server which is by default assigned to your device when surfing the internet, but one can change this by pointing a different DNS server. And here is a little guide that how to set DNS settings on iPhone & iPad.
Why we need to change this settings? as sometimes the DNS server located at ISP are not having quick response which could be the main cause for slow internet browsing on your device. And if sometimes you feel a site is opening on your friend device but not opening on your device, then you should change the DNS settings to resolve this problem.
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Steps To Set DNS Settings On iPhone & iPad
Just follow these steps to change DNS settings on your iOS device:
- Open Settings app, and tap on Wi-Fi option
- Select the specific network from available networks list, and hit nearby “i” button
- Inside the Wi-Fi setting scroll-down and tap on DNS IP
- A keyboard will show up, now you can specify a new DNS IP address. The moment you have set a new IP just hit the Wi-Fi to go-back.
Which IP is preferred for DNS server:
Obviously, you have some idea that which DNS server should be used, here we have some better options for you to set:
Google provides a DNS service for free which guarantees speed and performance. To make use of DNS service of Google, give any one of these IP addresses inside the DNS field of Wi-Fi settings of your device:
Another free DNS offer is the Open DNS service which also guarantees speed and security. Just give any of following IP addresses in DNS field:
Of course you can find lots of other available DNS services, and if you want to find a best option for you, then use a tool such as Namebench.
(Source : iphonehacks)