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this post was submitted on 20 Oct 2024
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Yeah, there’s a baseline of network stack understanding that you gotta have in order to use some of the tools, even Theo es that are supposed to make it easier.
What don’t you get? Maybe I can point you in the right direction.
Thank you :)
The reply from @jet@hackertalks.com below lead me to the man page for ip netns here:
https://manpages.ubuntu.com/manpages/trusty/man8/ip-netns.8.html
As far as I understand it, I could run programs like this:
ip netns exec vpn ~/qbittorrent/start.sh
ip netns exec clear ~/minecraft/start.sh
but I can't figure out how to get the VPN to only run under the namespace. When I run it now, it reroutes all connections through it. I've got an OpenVPN connection that I've set one of my network connections to connect to automatically, but it doesn't seem to make a difference. As soon as I connect the VPN, everything goes through it.
I'm still reading though, so hopefully I'll figure it out :)
I think the defaults on your tunnel apply themselves to all interfaces(or whatever the active one(s) are.
If you wanna troubleshoot this from the ground up you’d start with looking at your routing table.
If you run into problems using the process enumerated in the link you posted a couple of replies down, you can start to troubleshoot it by looking at the routing table with iptables -L
Sorry, I forgot to reply sooner >.<
I've been trying to get my head around this and also looking into Docker containers with Gluetun, as that looks a bit easier to start with. I think for the moment I'm going to go down the Docker route, and at least get the bulk of the programs separated, and give myself some breathing space to learn a bit more.
Docker isn't ideal, as not everything has a Docker version, but the main programs that I originally mentioned do, and it will let me open the Minecraft servers to the kids in the extended family, especially as it's getting colder and darker here.
I just want to say thank you to you, @jet@hackertalks.com, @lungdart@lemmy.ca, and everyone else who's helped :)
I'm not giving up on this, I'm just going a bit more towards the basics and learning to walk before I try to run. This switching from Windows malarkey is hard work! ;)
https://www.wireguard.com/netns/
Here is a good how to for wireguard. Most commercial VPNs let you connect directly with wireguard.
Basically crate the interface in your clearnet namespace and then move it to your vpn namespace
Thanks for replying :)
I think I'm getting it, but my brain is definitely pickled at this point :D
I've also found this post and a Stack Exchange thread to go with it, and it's sinking in slowly
https://schnouki.net/post/2014/openvpn-for-a-single-application-on-linux/
I need to go to bed for the night though, I've just realised that it's gone 3 am :o