DNS is an acronym for Domain Name Server. Each time when a website is visited into the system’s browser, the gadget delivers that domain name to a DNS server that interprets domain name into an IP address. Then it forwards back that data to your browser so it can connect to the IP address.
Each ISP has its DNS servers, and they amend those servers recurrently for new domain names and addresses. A DNS leak is a crisis with the network configuration that leads to loss of confidentiality by sending DNS inquiries over insecure links as an alternative of employing the VPN connection. DNS queries are demands made by the user to transform the server names into IP addresses. Email users, games and browsers, and all other applications types communicate on the web using IP addresses. Thus the DNS requests are fundamental for Internet communication.
How does it work?
When a VPN is connected, it is significant that all your traffic goes via the tunnel. A DNS request can disclose your actions if they “leak” outside the secured tunnel. Imagine a crossroad where the one way is the encrypted tunnel formed over a virtual network adapter, and all the traffic gets encrypted via it. The other means is the physical network adapter, where there is no encryption of communication. When there is a DNS leak, the DNS query bearing the accessed site name will be sent through the unprotected “road” reaching the ISP hence revealing the names of the accessed hosts.
DNS leak test: simple & swift
On top of VPN connection malfunctions, the other noteworthy risks to your anonymity when employing a trusted VPN service provider is DNS leaks. This might end in your ISP being capable to ‘see’ and keep an eye on your online activity although you assume that a concealed VPN tunnel securely shields you. If you require plugging a DNS leak, or you simply want to discontinue the probability of one occurring, there are numerous approaches you can take.
It is significant to verify your VPN performance via the DNS leak test frequently. It is the most suitable way of validating the susceptibility so that it can be fixed. A DNS test tool allows you to check the competence of a VPN. Various websites provide online DNS leak tests, most of them offer free services. First, you have to make sure that you are connected to your VPN, and then you can run the test. You should not be able to see any information directing to your internet service provider.
The procedure of inspecting DNS leak is, in fact, simple and swift. You need to follow these simple steps:
Step 1: Connect the VPN and click on the “Execute Test” button.
Step 2: The site will show the DNS results.
From the observed results, you can effortlessly figure out the DNS leaks. If your list has your authentic ISP hostname, country or real IP address, then your VPN is leaking DNS requests. DNS leakage can be evaded by setting adjustments to your operating systems, browsers and gadgets. It is most likely that DNS requests are positioned up to the ISP DNS server; thus it transforms it to the more secure DNS server.
DNS leak fix: secure VPN service
There are a couple of things that can be done to stop DNS leak from occurring such as assigning your PC a static IP. However, the most secure and simple solution is the usage of a VPN service with integral DNS leak protection. While connecting to your Virtual Private Network, you automatically connect to its DNS server instead of the DNS of your ISP. That way, you get protected as the ISP is not aware of the sites you are visiting or which domains you are accessing.
But what happens if your VPN does not have a DNS leak protection? In such situations, you can manually create a public DNS such as OpenDNS or Public Google DNS within your VPN connection or Internet connection.
DNS leaks constitute significant distress as they threaten confidentiality even in the existence of privacy tools like Virtual Private Network. Therefore, it is essential to avert DNS leak through smart VPN choices and other setting modifications. Primarily, you should habitually run DNS leak test to keep away from any risk and unwanted circumstances.