Ipv6 and ubuntu

So if you’re using or plan to use Ubuntu 22.04 with ipv6 … don’t…

The netplan YAML is completely deprecated. Use 24.04 instead, it’s a much better experience.

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I’m starting to understand why …even though ipv6 is great, not everyone is using it for everything all the time.

I recently got tired of having a big server and not enough IP addresses to really utilize that server to the fullest, so I decided to look into alternatives…

I have a proxmox server that I use for web hosting/other thing hosting. Basically whatever you can put on a Linux server, I can host. So up until now I’ve been getting a block of let’s say 13 usable IP addresses, so a /28 is what I have now, and just using a different IP for each VM. When I run out of IPs, I have to buy more, and they generally want justification for it because ipv4 is getting tired. Justification is the easy part, but if you keep needing more and more IPs, you end up paying a lot of money for different subnets. Soooo, enter ipv6 … I got a /64 subnet for $0.00 and I’m like “yay, we’ll just switch all these over, and lose the ipv4 totally” … wrong… ipv6 isn’t compatible with ipv4 number one, so anyone who’s ISP doesn’t support ipv6 (and there are more of them than you think out there) is basically screwed using any of my stuff, and if they’re paying for it, that’s not gonna work…

What a mess…

The solution is going to be a science experiment with reverse proxying and other magic tricks to make it so that I can run multiple services off 1 ipv4 IP address … but what makes it even more fun, is that according to what I’ve read, this only works with web services. So websites are fine, but things that aren’t websites are going to need natting and other tricks to work.

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I can understand you trying ipv6 in your situation, but I think the average home user has no reason to try.
IPv4 behind a NAT virtually makes the home user immune to IP problems… that is why noone tries IPv6.

You are saying that important parts of the internet ( eg some ISP’s) dont yet support IPV6.
That is really a bottom line… the internet depends on everything working together using one standard.
So we dont actually have an internet functioning on IPv6 yet.

Good luck with your workaround

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oh you shoulda seen me the other night trying to get my mastodon server to talk to my postgresql database server over ipv6 … you’d think I was trying to make the damn thing do jumping jacks or something… .

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