Raw disk access is a privilege in Linux, usually reserved for root.

You could have root change the permissions on the directory to allow another user or group write access.

goes to Google, on the raw network, and on the VPN.

You can't "go" to a destination on two networks in a single request. It's all packets on a wire, if it comes from two sources, it was two requests.

Unless you mean two different requests. As in while on the VPN everything is tunneled, and while not on the VPN it's not, but this is the opposite of what the OP was asking for. He wants the VPN on for some use cases, and off for others. That's split tunneling.

He'll likely wind up with difficulties around trying to figure out which destinations he doesn't want routed through the VPN, because there's no way to do it by protocol, since routing happens on layer 3, not 4 or 7. He'll likely need to know those address in advance.

Interesting. There's no difference in my dialect.

One NIC is fine

Told my wife and kids they can run whatever they want if they don't involve me. If you want me to help with computer issues then I'm installing Linux.

If you don't want that, you better learn how to computer because you're on your own

Canadian with a shitty mobile keyboard, that's all.

Swipe keyboard. It picks random yours, and I'm exhausted from flying all day so I didn't proof read.

Yes that's called routing.

You don't bind it to a NIC, you specify the destinations you want forwarded to each interface. Your VPN connection is just another interface.

If you're looking for good docs, you may want to Google split tunnel vpn, and also bone up on your networking.

A few static routes should get you what you need

Pfsense is built on this, but it has some free software issues.

OpnSense was a pfsense fork from some of them original creators, that is free software.

Both are fantastic.

I can see this being a breaking change for some strange edge cases and (ab)uses.

https://darknetdiaries.com/transcript/140/

This pod cast is about someone who went through something similar, and ended up prosecuting.

See how negatively it affected their lives and decide if involving the police is best for you. I hope you agree that it is.

You may be preventing future crimes by stopping the behaviour early, even though it can be socially awkward to navigate this with a friend.

Shaka, when the walls fell...