VPN DNS Discovery

VPN DNS Discovery

Automatic Detection

discover_vpn_dns() {
    # 1. NetworkManager proton0 interface
    nmcli dev show proton0 | grep "IP4.DNS"

    # 2. WireGuard allowed IPs
    wg show wg0 | grep "allowed ips"

    # 3. protonvpn CLI
    protonvpn status | grep -oP 'DNS:\s*\K[0-9.]+'
}

Supported VPNs

VPN	Detection Method
ProtonVPN	protonvpn status / NetworkManager proton0
NordVPN	WireGuard config / nordvpn status
Tailscale	tailscale status --json (Magic DNS)
WireGuard	wg show allowed IPs

Manual Override

VPN_DNS=10.2.0.1 agentic-dns status
VPN_DNS=10.2.0.1 agentic-dns query example.com