syncthing/etc/firewall-ufw

Uncomplicated FireWall application preset

Installation

Please note: When you installed syncthing using the official deb package, you can skip the copying.

Copy the file syncthing to your ufw applications directory usually located at /etc/ufw/applications.d/ (root permissions required).

In a terminal run

sudo ufw app update syncthing
sudo ufw app update syncthing-gui

to load the presets. To allow the syncthing ports, run

sudo ufw allow syncthing

If you want to access the web gui from anywhere (not only from localhost), you can also allow the gui port. This is step is not necessary for a "normal" installation!

sudo ufw allow syncthing-gui

Verification

You can verify the opened ports by running

sudo ufw status verbose