On 2026-09-16 11:39:22 +0200, Marco Moock wrote: > Am 16.09.26 um 05:10 schrieb Vincent Lefevre: > > Then what do you suggest? > > Investigating the DNS server issue.
How do I investigate? But in any case, this is not my job. And since the problematic DNS servers are no longer used by the machines I have access to, I no longer care anyway. > > > As you refuse to show the output of "ip a", it is not possible > > > to help here. > > > > Perhaps you should read the whole thread. I gave it last week: > > The content might changed as you said that router advertisements are being > received by your machine. This occurs rarely. And this would have been detected if this were the cause here. > > > nscd is not installed by default in Debian. Please show us the > > > configuration. > > > enable-cache hosts yes > > positive-time-to-live hosts 3600 > > negative-time-to-live hosts 20 > > Ok, that looks fine. > But be aware that if the faulty DNS server gives you back an error, > it will be cached for 20 seconds. No, this is cached for much more than 20 seconds. -- 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)
