GUI port to the outside world, you can access it through a SSH tunnel instead. If you have SSH access to the machine running Syncthing but would rather not open the web Port in your local firewall if you have one. To be able to access the web GUI from other computers, you need to change the GUI Listen Address setting from the default 127.0.0.1:8384 to 0.0.0.0:8384. In case you installed Syncthing manually you can follow the instructions to manually add the syncthing preset ![]() ![]() You can then verify that the ports mentioned above are allowed: If you also want to allow external access to the Syncthing web GUI, run:Īllowing external access is not necessary for a typical installation. , you can allow the necessary ports by running: If you’re using ufw on Linux and have installed the Syncthing package Port 21027/UDP (for discovery broadcasts on IPv4 and multicasts on IPv6).Port 22000/TCP (or the actual listening port if you have changed the Sync Protocol Listen Address setting.).If your PC has a local firewall, you will need to open the following ports for incoming In the absence of port forwarding, relaying may work well enough to get devices connectedĪnd synced, but will perform poorly in comparison to a direct connection. Therefore if you set up port forwards for oneĭevice, other devices will be able to connect to it even when they are behind a NAT 22000/TCP).Ĭommunication in Syncthing works both ways. The external forwarded portĪnd the internal destination port has to be the same (i.e. ![]() Or the port set in the Sync Protocol Listen Address setting. If this is not possible or desirable you should set up a port forward for port 22000/TCP, If it succeeds you will see a message in theĬreated UPnP port mapping for external port XXXXX on UPnP device YYYYY. If you have a NAT router which supports UPnP, the easiest way to get a working portįorward is to make sure UPnP setting is enabled on both Syncthing and the router –
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