Syncthing as a service

🛠 Syncthing Setup Guide with whoami

1. Check installation
   Make sure Syncthing is installed correctly:

   syncthing --version
   

   This confirms the binary is available.

2. Enable the service at boot and start immediately
   Syncthing ships with a systemd unit file named syncthing@.service.
   You can automatically insert your current username with whoami:

   sudo systemctl enable syncthing@$(whoami).service
   sudo systemctl start syncthing@$(whoami).service
   

3. Verify service status

   systemctl status syncthing@$(whoami).service
   

   Look for “active (running)” in the output.
   If it’s not running, check logs with:

   journalctl -u syncthing@$(whoami).service
   

4. Firewall considerations

   • Syncthing uses 22000/tcp for sync traffic.
   • It also uses 21027/udp for local discovery.

   With ufw:

   sudo ufw allow 22000/tcp
   sudo ufw allow 21027/udp
   

   The commands shown are for ufw. If you use another firewall, adjust accordingly.