If you do not trust Tailscale as a company, here is an open source re-implementation of the server called headscale. Some/all clients are open source as well. So, you can review all components yourself or pay for a professional third-party review. Otherwise, if you take a binary blob from any origin, including Tailscale, and have it run with privileges on your server, there are few limits on what this blob can do. Yes, backdoors are technically possible, but probably bad for Tailscale's business if that ever came to light.
this post was submitted on 12 Oct 2024
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Privacy
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I’ve never heard of professional third-party review of open source code. That’s a service people offer?
I've heard of it, but I didn't think it was financially viable for an individual to pay for though.
I've always wanted to do this however do I understand it correctly that I need to host headscale on a vps server that is not in my tailnet/home network?
It can be on your home network, but it needs to be reachable via HTTPS through the internet. So yeah, a vps is probably the best option.
I dont think so. It would just require some ports open.
From what I understand tailscale is basically wire guard but made convenient. And how they do that is by managing you wire guard keys for you. So I would have assumed they could use the keys to access your network. HOWever while trying to look into this just now I found out tailnet lock exist and it says "When tailnet lock is enabled, even if Tailscale infrastructure is malicious or hacked, attackers can’t send or receive traffic on your tailnet."
If you're concerned about privacy I don't know why you'd use Tailscale over Wireguard directly. The latter is slightly more fiddly to configure, but you only do it once and there's no cloud middleman involved, just your devices talking directly to each other.
Yes, fair. I was just attracted by the no-hassle method of Tailscale.
The official service is bound to need a SSO login from bad privacy related providers. They insist in not allowing a simple account creation with just email and password.
You can relatively easily set up a self-hosted OIDC sever like like Keycloak or Kanidm.
for authentication you need an account at one of their supported SSO providers (which is mostly a big tech brand) or at an OpenID service.
the bigger problem is that (I think) the choosen SSO provider will be able to impersonate you, and so they could reconfigure your network or connect to it
The biggest downside, as I understand it, is that it's difficult to convince others to use your tailnet
Just curious: what's the usecase of others joining your tailnet? Filesharing/Private cloud services?
Yeah, that's why I use TailScale at all. I host services for my close friends to enjoy
You can enable Funnel, which doesn't require others to have the TS client.
Had no idea that existed, I wonder what the security is like
Why not a direct VPN/WireGuard link to your home network? Works flawless.
Tailscale is very convenient if your home network is behind a CGNAT.
Not a response, but I used to use taikscale with my own headscale server without problems but for some reason it just started to fail (I didn't even updated tailscake nor headscake at all) and the speeds with direct connection were some unbelievable 0.00Mbps over direct connection.
I searched for another MeshVPN and I found something called NetMaker, you can Selfhosted it too and it works really well. The speed is better than Taikscale too because it uses kernel wireguard instead of user space. They still lack some features like an Android client but I don't care. I just want to connect servers securely. It's pretty new software so it can have some bugs.
Veilid
How about netbird, all open source and self hostable
I use zerotier and afaik they can't access it, hence, I assume it's the same for tailscale
The WireGuard encryptions stops when data reaches their servers and the data is re-encrypted to be sent to the client. So, theoretically, they can look at all the data being passed through.
Read more here about TLS termination and TLS passthrough. https://blog.aiquiral.me/bypass-cgnat