Ethical Hacking

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Network Security Firewalls
[Top] [All Lists]

RE: securing Oracle tnslistener on firewall.

Subject: RE: securing Oracle tnslistener on firewall.
Date: Wed, 7 Dec 2005 08:44:42 -0800
Here's a good article when googled (with key words " Oracle ports
firewall":  
http://www.pauck.de/marco/misc/oracle_and_firewalls.html

Damien Dinh

-----Original Message-----
From: mjohn2000_99@yahoo.com [mailto:mjohn2000_99@yahoo.com] 
Sent: Tuesday, December 06, 2005 8:03 AM
To: firewalls@securityfocus.com
Subject: securing Oracle tnslistener on firewall.

Hello friends,
My oracle people tell me to open up all TCP high ports to allow SQL
communication. I see a security issue there because it would open up
about 60K ports. 

My test shows that the only port used by TNS listener is 1521. But,
oracle people claim that when there is need for many connections, oracle
would spawn more dedicated process for each connection and redirect
connections to random high ports. My research showed that claim is
correct. But, it is a risky thing to open up too many ports. 

Please advise me how I can make the SQL communication secure. If u know
any article explain the security, please point me on that direction.

Thank you....
John

<Prev in Thread] Current Thread [Next in Thread>