notes:linux_troubleshooting

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notes:linux_troubleshooting [2025/07/23 10:02] – patrick.kahrnotes:linux_troubleshooting [2025/07/23 10:03] (current) – patrick.kahr
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 After checking that ''/etc/resolv.conf'' indeed contains the correct DNS settings provided by the DHCP server, we suspected it is some kind of caching.  After checking that ''/etc/resolv.conf'' indeed contains the correct DNS settings provided by the DHCP server, we suspected it is some kind of caching. 
  
-It turns out that openSuse Leap does DNS caching using ''nscd'' by default. Other people have already reported issues with it: https://www.reddit.com/r/openSUSE/comments/s0oq4e/wierd_dns_caching_issue/+It turns out that openSuse Leap does DNS caching using ''nscd'' by default.  
 + 
 +Other people have already reported issues with it: https://www.reddit.com/r/openSUSE/comments/s0oq4e/wierd_dns_caching_issue/ 
 + 
 The problem was resolved by disabling DNS caching: The problem was resolved by disabling DNS caching:
  
   -   Set ''enable-cache hosts no'' in ''/etc/nscd.conf''   -   Set ''enable-cache hosts no'' in ''/etc/nscd.conf''
   -   Relaunch the nscd daemon ''sudo systemctl restart nscd''   -   Relaunch the nscd daemon ''sudo systemctl restart nscd''
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  • by patrick.kahr