What it does
AirVPN documents WireGuard and OpenVPN access, several entry ports, IPv4/IPv6 tunnels and configurable DNS lists and exceptions.
AirVPN's technical-specification page is a useful starting point for a custom setup. It lists WireGuard and OpenVPN entry methods, additional SSL/SSH layers and IPv4/IPv6 tunnel support. Its DNS controls can apply lists or custom exceptions at account or device level.
Outbound port 25 is blocked to prevent spam, a concrete restriction for anyone expecting SMTP traffic through that port. Eddie is the related open-source desktop client, with graphical and command-line operation.
Strengths
- Detailed protocol, port and DNS configuration documentation
- Related Eddie graphical and command-line client
Watch out for
- Outbound port 25 is blocked
Best for
- Technical users configuring VPN protocols and DNS behavior
Sources
- Technical Specs - AirVPN (Oct 26, 2026)
- GitHub - AirVPN/Eddie: UI/CLI for OpenVPN/WireGuard · GitHub (Oct 26, 2026)