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Oracle network security guidelines

Oracle Tips by
Steve Karam
Oracle ACE, Oracle Certified Master

The topics covered in listener security management are straightforward, but there are special guidelines for proper network security management.  While this isn't terribly advanced, it will definitely act as a good block against basic attacks.

Oracle Network Security guidelines

Here are some other things that will help to protect your database servers on the network:

  • Put your listener on a port other than the well-known 1521.
  • Run your listener as a different user.
  • Remove the EXTPROC entry from your listener configuration.
  • Use TCPS protocol for communications.
  • Use CMAN as an Oracle firewall.
  • Close unnecessary ports on the operating system (rexec, rsh, ftp, etc).

These guidelines are not absolutely necessary, but they do provide you with an extra bit of protection. Once you have password protected your listener and optionally set up valid node checking, you are definitely in a well secured position.

These guidelines will be welcome additions to your security plan (if you don't have one, make one), and will definitely impress auditors.

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Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

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