Resolving the Matter: Configuring DNS with system
A Guide to Managing DNS on Linux with systemd-resolved
Configuring DNS on Linux was once a simple task, but with systemd-resolved, it has become more complex. Understanding how systemd controls DNS resolution is key to customizing your system for improved privacy, security, and reliability.
Systemd-resolved uses a "stub listener" to intercept DNS requests, requiring users to configure DNS through its settings rather than modifying directly. Additionally, split DNS architecture assigns different DNS configurations per network interface, demanding careful setup to ensure queries are routed correctly.
To configure global DNS settings, users must update , specify preferred DNS servers, and apply a route-only domain (~.) to override per-interface settings. Restarting systemd-resolved finalizes the changes, ensuring a seamless and controlled DNS resolution experience.
A deeper dive into per-interface DNS settings and advanced configurations will be covered in a follow-up article.