VPN and proxies: how to check for DNS/WebRTC leaks and properly configure DNS?

Ensuring complete network anonymity requires not only enabling the connection itself, but also thoroughly checking for potential leaks of confidential data, such as DNS requests and WebRTC technology. Administrative practice shows that regular software updates and creating configuration backups have a much higher priority than complex, fine-tuned interface configurations. Always automate the backup creation process and be sure to enable two-factor authentication on all connected accounts.

DNS leaks occur when your browser continues to send domain name requests to your ISP's servers despite an active secure connection, completely exposing your real browsing history. In turn, browser WebRTC technology can directly transmit your true local and public IP addresses via peer-to-peer connections, bypassing any intermediaries.