WireGuard vs System DNS: Stop Resolver Conflicts

When systemd-resolved, NetworkManager, or router DNS fights WireGuard DNS=, privacy loses. The conflict WireGuard brings the tunnel up, but another service rewrites resolv.conf or DoH settings seconds later. Leak tests flicker between VPN and ISP DNS. Linux Prefer wg-quick with DNS= and a resolvconf integration that owns DNS while the interface is up. Avoid hardcoding ISP DNS in NetworkManager connection files. Windows & macOS Official WireGuard apps apply DNS while active. Third-party wrappers may not. Always verify with ipconfig/scutil after connect. Mobile Android Private DNS (DoT) can override. iOS On-Demand rules can race with Wi‑Fi DNS. Toggle Private DNS off or to automatic when testing VPN DNS. Fix workflow Connect → check DNS → browse → recheck DNS. If it flips, find the service rewriting resolvers and disable it for the VPN session. Protect yourself with AstraGuard VPN AstraGuard VPN helps keep DNS inside the tunnel with strong encryption, kill switch options, and simple setup on desktop and mobile. Create an account , pick a plan on packages , then verify on privacy tools .