A DNS leak is a security flaw that allows a user’s internet traffic to be routed through their internet service provider’s DNS server instead of the VPN’s DNS server. This can expose the user’s online activity and potentially put their privacy and security at risk.
DNS leaks occur when a user connects to a VPN but their device automatically defaults to the ISP’s DNS server instead of the VPN’s. This can happen due to a variety of reasons, such as a misconfigured VPN client or outdated VPN software.
When a DNS leak occurs, the user’s internet traffic is no longer encrypted and can be easily monitored by their ISP or other third parties. This can lead to personal information, such as browsing history and online activity, being exposed.
To prevent DNS leaks, users should ensure that their VPN software is up to date and properly configured. They can also use a DNS leak test to check for any potential leaks and take action to fix them.
Another way to prevent DNS leaks is by using a DNS resolver, such as OpenDNS or Google Public DNS, which can provide additional security and privacy protection.
It is important for users to be aware of DNS leaks and take steps to prevent them in order to maintain their online privacy and security. By being proactive and taking the necessary precautions, users can protect themselves from potential threats and ensure that their online activity remains private.