Richard "RichiH" Hartmann

I need your help for a short announcement during the closing of #FOSDEM :

What services which you rely on are IPv4-only?

I have a bit of a surprise for next year...

Feb 1 at 2:22pmWeb
Show threadÖzgürFeb 1
@RichiH github.com … sadly it’s still relied upon.
Show threadMarcus MüllerFeb 1
@itsozgur @RichiH yeah that one regularly bites me on IPv6-only-connected systems regularly
Show threadFellFeb 1
@RichiH The only one I can think of is GitHub.
Show threadkidneyFeb 1
@RichiH My Wireguard tunnel is explicitly on IPv4 so I can roam through LTE and different Wifis.
Show threadAlexander Olofsson | AnanaceFeb 1
@RichiH RedHat subscription manager...
Show threadzhenechFeb 1

@RichiH @ace not anymore!

https://access.redhat.com/articles/cdn_modernization

Red Hat Content Delivery Network (CDN) & Entitlement Network Modernization - Red Hat Customer Portal

On January 14, 2026 Red Hat made a number of changes to our CDN and Entitlement network. If you maintain systems running Red Hat Enterprise Linux 7.3 or earlier you may be required to make manual changes to connect with our networks.

Red Hat Customer Portal
Show threadAlexander Olofsson | AnanaceFeb 1
@zhenech That's actually amazing news, we were starting discussions internally about piecing together some kind of franken-Katello in order to work around the lack of IPv6
Show threadmirabilosFeb 1
@RichiH oh-oh…
Show threadRichard "RichiH" HartmannFeb 1
@mirabilos :)
Show threadLennartFeb 1
@RichiH „Rely“ is a strong word, but Reddit still doesn’t properly support IPv6. Neither does BlueSky.
Show threadRichard "RichiH" HartmannFeb 1
@lenni reddit has a bunch of AAAA though? I don't actually know either way, mind
Show threadLennartFeb 1
@RichiH They do, but from my last v6 only attempts, it didn’t work regardless
Show threadMiyuru SankalpaFeb 2

@lenni

Reddit has been running an A/B experiment for a while now. They only return AAAA records for a small percentage of DNS queries.

@RichiH

Show threadMarkus FeilnerFeb 1
@RichiH we only find out when we are in ipv6 only networks which are very rare
Show threadRichard "RichiH" HartmannFeb 1

@mfeilner wait until after @bagder 's talk... ;)

(i see you sitting at the front left. Hi!)

Show threadJérôme PetazzoniFeb 7

@RichiH

GitHub.

(I've run ipv6-only K8s clusters and each time something broke - images, Helm Charts, kubectl plugins, ... Each time it pointed to GitHub.)