My question is simple, I want to sync files between a qube and my Android device. How can I set up Syncthing securely? I just want Local Discovery. NAT Traversal, Global Discovery and Relaying will be disabled. Can someone help? Thank you.

This can be achieved by setting the IP address of your android phone in the device on the qube, there won’t be any need for discovery as the remote address is known. The android device will be able to connect back then. Works fine for me © :slight_smile:

Have you looked at the community guides @helplease ? [image] Copy files between smartphone and app-vm via USB or LAN/Internet (syncthing) Community Guides how you can copy files between smartphone and app-vm for review and add best set configuration security …

Unfortunately first guide is… more like leaflet that don’t give you answer. At least for LAN/Internet syncthing. It’s “you install syncthing on phone, install syncthing in qube and it works” - no it’s not. For now “global discovery” only works. My network is router->switch->lan qube os laptop and…

if you don’t want local discovery and faster speed, you need the non qubes os client to have a static ip, and set that static ip into the remote within syncthing running in qubes

Oh, but I want local discovery only which doesn’t work.

this does not work as the local network of a qube is by default sys-firewall You may want to run a local relay on your LAN, it would work.

Is sharing files through local network is more secure (not talking about privacy) than through internet? I use OpenWrt router and I checked box about isolating clients/preventing client-to-client communication, because my LAN may have some not so secure devices. I believe I wouldn’t be able to use…

Syncthing on Qubes

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Atrate August 2, 2026, 2:36pm 9

I’ve modified Solene’s nat.sh script in order to support simple broadcast packets which allows you to get syncthing’s local discovery working, as such (in dom0):

nat.sh <syncthing qube name> 21027 udp -b