DNS server stops responding to lookups

Solution Verified - Updated -

Issue

  • A DNS server configured on Red Hat Enterprise Linux 5 stops responding to DNS queries.
  • A restart required to restore services.
  • The DNS process stops servicing requests with the following messages in the logs

    Aug 11 05:55:02 dns1 out of memory [4918]
    Aug 11 06:00:03 dns1 out of memory [4918]
    Aug 11 06:05:06 dns1 out of memory [4918]
    Aug 11 06:08:18 dns1 out of memory [4918]
    Aug 11 06:11:03 dns1 out of memory [4918]
    

Environment

  • Red Hat Enterprise Linux 5

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