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nonkronk/auto-resolve-wireguard-endpoints.md

Last active April 2, 2023 20:14
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Auto-resolve all Wireguard endpoints (Dynamic DNS / IP address)
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auto-resolve-wireguard-endpoints.md

Auto-resolve all Wireguard endpoints (Dynamic DNS / IP address)

Add a systemd timer to run the script every 30 seconds:

sudo vi /etc/systemd/system/wg-autoresolve.timer
[Unit]
Description=Periodically auto-resolve DNS of all WireGuard endpoints

[Timer]
OnCalendar=*:*:0/30

[Install]
WantedBy=timers.target

Add a systemd service to run the script:

sudo vi /etc/systemd/system/wg-autoresolve.service
[Unit]
Description=Auto-resolve DNS of all WireGuard endpoints
Wants=network-online.target
After=network-online.target

[Service]
Type=oneshot
ExecStart=/bin/sh -c 'for i in /etc/wireguard/*.conf; do /usr/share/doc/wireguard-tools/examples/reresolve-dns/reresolve-dns.sh "$i"; done'

Enable & start the timer:

sudo systemctl enable wg-autoresolve.timer
sudo systemctl start wg-autoresolve.timer
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