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My IPV6 only server is unable to federate properly with lemmy.world (lemmy.world)

submitted 1 year ago by fbmac2@lemmy.world to c/lemmy@lemmy.ml

9 comments fedilink hide all child comments

publicação cruzada de: https://lemmy.world/post/5837469

Since I moved my server to ipv6 only federation broke. I'm guessing this server is acessible trough the cloudflare proxy, but the underlying server is unable to connect to mine

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[–] chris@l.roofo.cc 7 points 1 year ago (2 children)

That is very possible. IPv6 only is still problematic. There are still loads of servers without or with broken IPv6 connectivity. You could put cloudflare on front of your server and get an IPv4 address that way.

[–] fbmac2@lemmy.world 8 points 1 year ago (1 children)

Cloudflare is a few clicks away, but I don't wanna use IPV4, I want the world to move forward

[–] muddybulldog@mylemmy.win 4 points 1 year ago (1 children)

Disabling IPv4 isn’t going to do anything to move IPv6 forward. You’re just shutting those who remain limited to IPv4 through no fault of their own.

[–] fbmac2@lemmy.world 3 points 1 year ago

After some sleep, I have to concede you this point, I enabled Cloudflare no my side. I've read a lot of criticism of Cloudflare here on Lemmy itself, but it seems to be the lesser evil.

[–] BitingChaos@lemmy.world 4 points 1 year ago (1 children)

IPv6 only is still problematic.

Well, you see, it's only been around 20 years or so. We need another 20-40 years of "IPv6 is coming" reminders before people really take a look at it.

[–] chris@l.roofo.cc 3 points 1 year ago

I don't like it either but the facts are the facts. Transitioning between technologies is always hard, especially if it isn't necessary. Nat works too well.

[–] fubo@lemmy.world 6 points 1 year ago (1 children)

This surprises me since Cloudflare has AAAA records listed for lemmy.world. Do you know your way around tcpdump? If so, it might be interesting to see what's happening with traffic to those addresses. My desktop doesn't have v6 right now (sigh) or I'd be testing that myself ...

[–] fbmac2@lemmy.world 5 points 1 year ago* (last edited 1 year ago)

They can accept incoming connections from IPV6 trough Cloudflare's proxy, but the underlying server isn't ipv6 capable:

2023-09-27T19:17:23.955421Z DEBUG activitypub_federation::activity_queue: Activity https://lemmy.fbmac.net/activities/undo/506ed9a4-bfee-472f-8249-f802639eec8d was rejected by https://lemmy.world/inbox, aborting: Request error: error sending request for url (https://lemmy.fbmac.net/u/fbmac): error trying to connect: tcp connect error: Address not available (os error 99)

lemmy.ml seems to have the same problem

[–] Dirk@lemmy.ml 1 points 1 year ago

ipv6 only

You successfully identified your problem.