I have an oracle database (11g-r2) on my (windows) computer for development, and I am trying to forbid any outside connections. Is there a way to do this?

  • 1
    firewall? stop the listener? May 18, 2015 at 7:26
  • bind listener to localhost( only
    – ibre5041
    May 18, 2015 at 12:02
  • Thanks. And how I do it please. I forgot to say that I am working on a windows installation. Editing the question.
    – Teocali
    May 18, 2015 at 13:12

2 Answers 2


The solution is really dependant on your environment. There are numerous options, from hardware firewalls, to software firewalls, to sqlnet.ora parameters. The first two are beyond the scope of this site.

The quickest, probably, is sqlnet.ora.

Have a look at the tcp.invited_nodes parameter: https://docs.oracle.com/cd/E11882_01/network.112/e10835/sqlnet.htm#NETRF237

This goes hand in hand with the tcp.validnode_checking parameter: https://docs.oracle.com/cd/E11882_01/network.112/e10835/sqlnet.htm#NETRF238


Bind the listener to localhost only:


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.