Self hosted syncthing relay with keepass, how secure is it?

Submitted ⁨⁨8⁩ ⁨months⁩ ago⁩ by ⁨kugmo@sh.itjust.works⁩ to ⁨selfhosted@lemmy.world⁩

I already have my keepassxc and syncthing setup on my phone and computers and it’s great, I’d like to go a step further and have my password database sync when I’m not on my home network. From my understanding I can use relays set up by other users and they are encrypted, but if I do not trust syncing personal (encrypted) data to someone else’s server how easy is it to set up a relay that only I use? I won’t be using Bitwarden because in theory if I can pull this off I can also use syncthing to sync other files as well. Is setting up a personal relay a lot of work or a potential security risk for my home network?

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TCB13@lemmy.world ⁨8⁩ ⁨months⁩ ago

Is setting up a personal relay a lot of work or a potential security risk for my home network?

Where are you planning to host the relay?

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- kugmo@sh.itjust.works ⁨8⁩ ⁨months⁩ ago
  At my house, I’m already using a dynamic dns for some game servers because of a dynamic ip.
  
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  - TCB13@lemmy.world ⁨8⁩ ⁨months⁩ ago
    If you can run port forward and run stuff at your house what’s the point of running a relay? You can just expose the ports that Syncthing uses and then configure your client to connect using your dynamic DNS and disable public relays.
    
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ShortN0te@lemmy.ml ⁨8⁩ ⁨months⁩ ago
So you do not trust the syncthing encryption when it goes through someones server but when it goes through someones (your ISP and the ISP of the end device) router/server?

I am not really understanding the thread model here.

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anzo@programming.dev ⁨8⁩ ⁨months⁩ ago
Syncthing is p2p. The servers only see your devices IP addresses and let them connect to share data themselves. That’s why it’s a relay. But AFAIK files only goes from, and to, your syncthing clients; without passing through the relays. At most, the relay may see some metadata as filenames. I have been syncing passwords like this since long ago. Never jumped to Bitwarden because I didn’t had the need… May do so anyway because of OTP and Passkeys…

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- anzo@programming.dev ⁨8⁩ ⁨months⁩ ago
  Oh, and the syncthing encryption that you may enable for the folders is for these devices/ clients. This may be useful is you were to use a third part machine, like a VPS, as a 24/ 7 node for your files. That’s different from a relay, may be desirable if you want to sync ASAP and avoid conflicts. In any case, conflicts are rare… you would need to open the DB and add entries at the same time, or some quirky scenario…
  
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PlexSheep@feddit.de ⁨8⁩ ⁨months⁩ ago
Personally, I’ve just set my devices to only sync in my LAN, just in case.

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- refreeze@lemmy.world ⁨8⁩ ⁨months⁩ ago
  I use it over Tailscale only and it works perfectly as an alternative.
  
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Decronym@lemmy.decronym.xyz ⁨8⁩ ⁨months⁩ ago

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:

Fewer Letters	More Letters
DNS	Domain Name Service/System
IP	Internet Protocol
SSL	Secure Sockets Layer, for transparent encryption
TCP	Transmission Control Protocol, most often over IP
TLS	Transport Layer Security, supersedes SSL
UDP	User Datagram Protocol, for real-time communications
VPN	Virtual Private Network

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