systemd-networkd resolves an endpoint name once, when it creates the
device. A peer behind a dynamic DNS name that changes its address was
never found again until the next restart.
A timer (router.wireguardEndpointRefresh, default 1min, null for off)
runs wg set for the peers with a name whose last handshake is older than
135 seconds, as wireguard-tools' reresolve-dns does. Working tunnels are
left alone.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AeFqV9dZrK6nipHkPfyM4F
nilsandClaude Sonnet 5.5
5572172904