On 2026-09-08 11:41:27 +0200, Nicolas George wrote: > Vincent Lefevre (HE12026-09-08): > > But on the problematic machine citron, getaddrinfo with AF_UNSPEC > > returns only the IPv6 address. With IPv4, it returns the IPv4 address, > > though. > > So next step is to examine the DNS requests made by the resolver to see > if the issue is that it does not request IPv4 or that it does not get it > as a reply.
I could see with "dig" (so not using the resolver) that DNS requests sometimes fail with a SERVFAIL error (not just on joooj.vinc17.net, but on arbitrary hostnames, and this seems to be random). There are 2 nameservers in /etc/resolv.conf, and both are affected. -- Vincent Lefèvre <[email protected]> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)
