Description of problem: The nscd only caches for a few minutes, although /etc/nscd.conf says positive-time-to-live hosts 3600 Version-Release number of selected component (if applicable): nscd-2.8.90-12.x86_64 How reproducible: Steps to Reproduce: 1. run tcpdump -n in the background 2. run date(1) to timestamp 3. run "host ipv6.google.com" 4. check output of step 1, it has DNS requiest for AAAA ipv6.google.com 5. re-run steps 1-3, see that there is no DNS traffic -- this is good 6. wait 20 minutes 7. repeat steps 1-3 8. observe that there's DNS traffic again Actual results: Short lifetime of cache Expected results: Configured lifetime Additional info: Setting bug component to glibc because nscd has no its own component. The replied TTL from Google is rather goofy, only 35s for AAAA: ipv6.google.com. 6340 IN CNAME ipv6.l.google.com. ipv6.l.google.com. 35 IN AAAA 2001:4860:0:2001::68 However, nscd caches for more than 35 seconds, so I think it obeys wrong part of nscd.conf or something.
Created attachment 316788 [details] nscd.conf
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle. Changing version to '10'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
nscd respects the TTL of the DNS reply. This overwrites the value in the nscd.conf file which is only used when no TTL information is available. The entry gets automatically reloaded a number of times and therefore will be again in the cache. This might be why you think the entry is cached longer than the specified number of seconds. Run nscd in the foreground by adding -d -d -d to the command line to observe the behavior. Unless you see in the debug messages that the entry is cached significantly longer than the number of seconds specified in the TTL close the BZ since there is no problem.
This message is a reminder that Fedora 10 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 10. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '10'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 10's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 10 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Fedora 10 changed to end-of-life (EOL) status on 2009-12-17. Fedora 10 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.