Why does my RHEL5 based RH Proxy issue malformed DNS queries after upgrading it to RH Proxy 5.6?

Solution Unverified - Updated -

Issue

  • After upgrading a RHEL5 based Red Hat Proxy server to Red Hat Proxy 5.6 we observe malformed DNS queries in the form of A lookups with proxy.fqdn:443 as the queried A record, that is, DNS queries that include the HTTPS port 443 in the query.

Environment

  • Red Hat Enterprise Linux 5.
  • Red Hat Proxy 5.6.

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