What is the meanings of the message "using specific query-source port suppresses port randomization and can be insecure."?

Solution Unverified - Updated -

Issue

  • What is the meanings of the below message?

    named[xxxx]: /etc/named.conf:xx: using specific query-source port suppresses port randomization and can be insecure.
    

Environment

  • Red Hat Enterprise Linux
  • BIND

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