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?
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.
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…
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…
If you can create a port forward in your router and run stuff at your house what’s the point of a relay then? Just expose the ports that Syncthing uses and configure your client to connect to it using your dynamic DNS. No public or private relays are required.
Port forward the following in your router to the local Syncthing host, any client will be able to connect to it directly:
Port 22000/TCP: TCP based sync protocol traffic
Port 22000/UDP: QUIC based sync protocol traffic
Go into the client and edit the home device. Set it to connect using the dynamic DNS directly:
For extra security you may change the Syncthing port, or run the entire thing over a Wireguard VPN like I also do.
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !selfhosted@lemmy.world
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don’t control.
Rules:
Be civil: we’re here to support and learn from one another. Insults won’t be tolerated. Flame wars are frowned upon.
No spam posting.
Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it’s not obvious why your post topic revolves around selfhosting, please include details to make it clear.
Don’t duplicate the full text of your blog or github here. Just post the link for folks to click.
Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).
No trolling.
Resources:
selfh.st Newsletter and index of selfhosted software and apps
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
6 acronyms in this thread; the most compressed thread commented on today has 10 acronyms.
[Thread #595 for this sub, first seen 12th Mar 2024, 08:05] [FAQ] [Full list] [Contact] [Source code]
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.
Personally, I’ve just set my devices to only sync in my LAN, just in case.
I use it over Tailscale only and it works perfectly as an alternative.
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…
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…
Where are you planning to host the relay?
Either way, here’s how to setup a relay and here how to configure clients to use your relay.
At my house, I’m already using a dynamic dns for some game servers because of a dynamic ip.
If you can create a port forward in your router and run stuff at your house what’s the point of a relay then? Just expose the ports that Syncthing uses and configure your client to connect to it using your dynamic DNS. No public or private relays are required.
For extra security you may change the Syncthing port, or run the entire thing over a Wireguard VPN like I also do.
Note that even without the VPN all traffic is TLS protected.