On 2026-09-22 15:33:05 +0200, Marco Moock wrote: > Am 22.09.26 um 05:30 schrieb Max Nikulin: > > The issue is that nscd caches for an hour results with some IPv6 > > addresses and no IPv4 ones due to SERVFAIL in response to the A query. > > As a result various tools can not connect the host due to lack of global > > IPv6 routing. > > Not an IPv6 issue and not an nscd issue. > If nscd caches the positive (e.g. answer with A/AAAA record) or negative > (server replies that the requested record does not exist) answer, it is > operation correctly. The failing DNS servers need to be handled at > libnss_dns.
Or perhaps nscd just misuses libnss_dns. Without documentation of how nscd uses this library exactly, who knows? That's why I currently consider that the bug is in nscd. If the nscd developers say that it is a misbehavior of libnss_dns and explain how it is used, then fine, the bug could be moved to this component. -- 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)
