Network Services

MasterDnsVPN Server Linux Installer

Installs, updates or uninstalls the MasterDnsVPN DNS tunnel server on Linux. To free port 53 it stops and disables other DNS services, changes or stops systemd-resolved and kills any process still using port 53; it also removes port 53 redirect rules, opens port 53 in the firewall, changes kernel and file limits, generates an encryption key and creates a systemd service.

What it does

DNS Tunnel Servers

What you will be asked

You fill these in during setup.

Action Required
Choose whether to install or uninstall MasterDnsVPN. Install also updates an existing installation to the selected version and keeps your current settings if the new version can still use them.
Version OptionalAdvanced settings
Enter the MasterDnsVPN release tag to install, for example v2026.04.12.234117-978faee. Leave empty to install the latest release. Leave it empty when you uninstall.
Tunnel domain Optional
Enter a subdomain for the tunnel, for example vpn.example.com, not the main domain. It must point to this server with an NS record: Setup creates that record and its glue record (vpn-ns.example.com) in your DNS when it can, otherwise add them yourself. It is needed for a new installation; leave it empty when you uninstall. It is written to server_config.toml only when no domain has been set there yet, so leave it empty if you already set one.