DDNS‑Updater

Small Go + Telegram utility to keep selected Porkbun A‑records in sync with your current public IP.

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Features

• 🤖 Update on schedule and on /update Telegram command.
• 🔒 Environment kept in .env (see .env.example).
• 🎯 Targets only sub‑domains you list in SUBDOMAINS; leave empty to handle all.
• 📣 Sends nicely formatted messages for successes & errors.
• 🛠️ Comes with Makefile + systemd service/timer.

Quick start

cp .env.example .env       # edit values
sudo mkdir -p /etc/ddns-updater && sudo mv .env /etc/ddns-updater/.env
make install               # build & enable timer

Check timer status:

systemctl status ddns-updater.timer

Trigger manual update:

/update

Remove completely:

make uninstall