nscd cache reload does not occur at correct intervals for hostnames that have a CNAME record

Solution Verified - Updated -


  • nscd ignores the TTL value associated with a CNAME record in a DNS query and uses the TTL value associated with the first A record instead.
  • This results in incorrect cache refresh intervals for the hostname entry


  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • glibc
  • nscd

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