I think you both are talking past each other. You said “But if nobody else is using those same endpoints.” but @MigratingtoLemmy@lemmy.world said “There’s plenty of people who are going to be renting VPSes and will have their traffic originate from the same IP range as mine”. Reading this thread, it seems like you both have different network setups in mind.

Yeah, it does come down to threat model and preference. If you only need to route specific apps, Gluetun sounds like a great solution.

I’m no network security expert, so I mainly followed Mullvad VPN for my implementation. I looked at the nftables rules that official Mullvad linux client uses, and also their document here: https://github.com/mullvad/mullvadvpn-app/blob/main/docs/security.md.

Though if you have any alternatives for vanilla wireguard users like me, I’ll gladly switch. I know somebody mentioned Gluetun but I thought that was for docker only. Do you know of any others?

Using untrusted networks is quite common, like coffee shop wifi or airport wifi.

So it’s really that simple…I can see why there are security issues 😅

I added clarification that the HTTPS part is assuming that the attacker has already performed the DHCP attack. Thanks for the note!

The DHCP race is one part I didn’t go into detail about since I’m not very familiar with the details, but what you wrote makes sense. One potential danger is a hacker at a coffee shop, where the shop owner is unlikely to be monitoring the network, and there are going to be many new connections coming in all the time. It’s still an unlikely scenario, but it also isn’t a particularly difficult attack.

Great write-up, I’ve been looking for something like this. I’ve heard of vopono and eznetns before but not namespaced-openvpn, and this is the first post I’ve seen where somebody details how they use a tool like this, so thanks! I’ll have to try setting it up some time.

That sounds very cool, I’ve been interesting in network namespaces but it’s hard to find information on how to use them. How did you do it?

From a privacy standpoint I don’t think it would make a big difference over not using a VPN at all. It will take a bit of time but your new IP will become associated with your identity. From the perspective of Facebook and Google, it will just look like you moved and are living inside a datacenter now.

If exposing hostnames and IP addresses is dangerous

It’s not necessarily dangerous, but it’s a major privacy issue. Hiding your browsing history from other people (except for the VPN provider) is one of the main reasons why people get a commercial VPN in the first place. And this vulnerability mainly concerns those users.