Sunday, 5 May 2019

What is DNS Leak? How to Prevent It?

Early in this year, I have talked about using Public DNS servers and DNS Hijacking in which I explained the whole lot about them. these daysi am right here with any other topic related to DNS that’s DNS Leak. suretoday’s subject matter is DNS Leak wherein you will get to understand what it is,and how to prevent it using various techniques.

What is a DNS Leak?

When you use a VPN, it makes a connection between your computer and its server, and then the VPN server connects you to the website that you queried for. on the other handwhilst you are notusing any VPN, and also you kind a website address inside the browser, then hit input, your IP server at once connects you to that unique internet sitebut with VPN, your connection is filtered through their server and the connection is especiallyencrypted. This way, your ISP or authorities can only see that your computer is hooked up to a VPN server, however they can’t see wherein the VPN connects you. meaning no one can track which web sites you have got been surfingthat’s whatVPN for. however, a state of affairs where the VPN is bypassed is called a DNS Leak. In simple words, if your browsing can be tracked even you are using a VPN; it is called a DNS Leak.
This is a kind of dangerous situation because as a user you don’t even realize that your VPN is bypassed, and all of the time you keep thinking that you are anonymously surfing the netbut the fact is that your logs are being tracked.
you would still be able to unblock the blocked websites in your vicinity because you are the use of the VPN, but your anonymity is left unprotected which at once approach that your location and browsing are being logged by means of your ISP.
So, the query here is a way to ensure that there may be no DNS leak on your VPN?
For this, you need to find out how to test if a VPN has DNS leak or not.

How to Perform DNS Leak Test for your VPN?

There is a simple online tool, that has the answer to it. you need to perform the stairs below:
initiallywithout connecting to the VPN, access as soon as it is loaded, you will be able to see your computer’s IP address and location. This is obvious since you are not using a VPN server.
Now, connect to a VPN.
Again, type in your browser, and once it loads, see that there need to be every other IP address and placeyou can click on “prolonged test” to look extra detailsmeaning VPN has protected your place and masked the IP cope with.
As you can see in the above screenshot that now the brand new location. And, moreover the unique IP address is showingthat means there can be no problem.
but, even you’re the use of a VPN, and whilst you open the dnsleaktest internet site, and it still shows your actual IP addressand areathere may be a DNS Leak.
i’ve used Hola Chrome Extension which offers loose VPN, and then examined the DNS leak. when loaded the dnsleaktest internet site, it confirmed me the special IP and regionhowever once I clicked on “prolonged take a look at”, it showed me my real IP, place, and ISP infomeaning it does have DNS Leak. it’s miles faking your area and IP, however it doesn’t provide anonymity because your surfing and other things are being tracked by your ISP because of DNS Leak in this VPN.
The same element, I attempted the usage of NordVPN, and it didn’t display my actual elementmeaning there may be no DNS Leak right here. So, in case you need or need to use a VPN, go together with NordVPN. The same element, I tried the usage of Shellfire VPN and found it to be exact, and no DNS/IP Leak is there. ExpressVPN is likewise at the listing that doesn’t have any DNS leak hasslefurthermore,  you need to configure it correctly. So, you can choose any of these. Moreover, there might be many other VPNs that don’t have DNS Leak issue, but since I have access to these VPNs, I have tested these only at the moment.
This is how you can find whether your VPN has DNS Leak or Not.

How to Prevent DNS Leak While Using VPN?

  1. Change DNS Server

Though this is not a complete fix for DNS Leak but changing DNS server makes sure that your ISP is not monitoring your browsing and net utilizationin case you are the use of VPN serviceyou can ask them their DNS server, and they will happily provide you that which you could replace in your net settings. moreoverin case you don’t get any DNS server from your VPN provideryou can use public DNS servers which includes Google Public DNS, OpenDNS, etcwhen you have were given the DNS servers either out of your VPN company or any loose public DNS server, however, not sure how to update it, you can read the guide by clicking here to know updating DNS servers.
  1. Use VPN that has no DNS Leak

Until you use a VPN server, it is tough to know whether it has DNS leak or not. thereforeearlier than shopping for any VPN servicemake sure to talk with them, and talk about the DNS leak. you mayalso ask for 1-2 days demo so that you can check if the VPN carrier is right and worth of spending money. Once you are assured, you can go ahead, buy the service.
Mullavad VPN service has a dedicated option that enables you to stop DNS leak which is an introduced advantage.
you could use these sorts of VPN offerings to make sure they may be now not leaking your DNS. This  can be the best solution to prevent DNS Leak.
  1. IPv6 Compatibility

IPv4 is used generally, and every VPN has support for it, but it is gradually changed through IPv6 that’s the contemporary model of IP addresses. Any surfing requests despatched to or from your pcover IPv6 will bypass the VPN if it doesn’t guide IPv6. And, in that case, DNS leak will appearif your VPN has the support for IPv6, then this received’t cause any difficultyconsequentlyeven as deciding on a VPN with IPv6 aid is a sensible selectionhowever, there are some VPNs that block IPv6 traffic to save you from DNS Leak, but it’s top to get the only that processes IPv6 traffic without any leaks.
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