« Using Forms + Reports 10g Builders with Release 12 | Main | 10.2.0.3 Database Certified on Windows Server 2003 for Apps 11i »

Troubleshooting DMZ Setups for Apps

It's possible to expose selected Oracle E-Business Suite applications such as iStore or iRecruitment to users outside of your corporate intranet.  As part of our security best practices recommendations, we recommend the use of reverse proxies in demilitarized zones (DMZ) for these types of deployments.

DMZ Reverse Proxy:

While simple in concept, the actual execution is sometimes a little trickier.  These projects are often complicated by the separation between different groups that manage network operations, enterprise security, and the E-Business Suite environments themselves.  Coordinating all three organizational groups can be a project in itself.  Even small missteps can result in some of the following issues:
  • Misconfigured firewalls and other networking components
  • Incorrectly configured reverse proxies
  • Incomplete or incorrect E-Business Suite setups
  • Inconsistencies between testbeds and production setups
One Step at a Time

Debugging environments with lots of complex moving parts can be frustrating.  The best strategy is to take a systematic approach and test the critical components in sequence.  To help you with that, our hardworking Oracle Support team has assembled some of the best tips for debugging these types of configurations here:
They've also published a companion document with a crisp walkthrough:
These documents are written specifically with Release 11i in mind but the principles and techniques apply equally to Release 12, too.  Great stuff and highly recommended if you're working on implementing a DMZ in your Apps environment.

Related

Comments (7)

kalpit:

Hi Steven,

Thanx for pointing to DocID: 438744.1. Its really very well written and practically useful Document. I would also like to thank Dan Collier (Author of Document)

Thanks,
Kalpit

Steven Chan:

Hi, Kalpit,

Thanks for the feedback on this Note.  I've passed on your comments to Dan; I know he'll be very pleased to hear that you found it useful.

Regards,
Steven

Naqi:

Steven,
I've followed Dan's Note: 438744.1, in addition to the dmz document for 11i. However I find that in the two seperate cases I have setup the jserv for the external entry point is always broken. What this means is that logins to 11i cannot happen. When I say this, I mean an access the login page: http://hostname.domain:port/oa_servlets/AppsLogin, results in a 404 page not found error. Investigating the various log files shows that the jserv that should be handling this request never starts up to begin with. I have an SR open 6559343.992. I was hoping if you could have a look at it, or perhaps if Dan could be contacted. My email address is naqimirza@yahoo.com.
Thanks

Steven Chan:

Naqi,

I won't have the opportunity to look at this in-depth today, unfortunately.  However, I've asked the Service Engineer assigned to your SR to coordinate with Dan as part of the investigation process.

If this is urgent, I would recommend calling Oracle Support and speaking with an Oracle Duty Manager to request escalation.

Good luck with this one.

Regards,
Steven 

Naqi:

Steven,
Just wanted to thank you for this, still in the process of trying to get this to work. However it looks like we are now hopefully making some headway. You may want to read it and see, I like to think its become an interesting read. To save yourself from reading the entire SR (and then halfway pondering over why you did in the first place). Take a read starting from the posts dated : '23-OCT-07 12:57:18 GMT' onwards.
Anyway thanks again.

Steven Chan:

Naqi,

Glad to hear that Dan helped you work through that.  We're very lucky to have him as part of our team -- he does great work in this area and is one of our recognized experts worldwide. 

Best of luck with the rest of your implementation.

Regards,
Steven 

Naqi:

Steven,
Just an update to let you know that the issue I was facing has now been resolved. A special thanks to Dan too, who really helped in identifying that the parameter s_webhost was incorrectly set to our reverse proxy server name - it should have been set to the internal node. With that done, we now have successful access to the e business suite via the internal and external url. Many thanks once again.

Post a comment

(If you haven't left a comment here before, you may need to be approved by the site owner before your comment will appear. Until then, it won't appear on the entry. Thanks for waiting.)

About This Entry

This page contains a single entry from the blog posted on September 5, 2007 3:12 PM.

The previous post in this blog was Using Forms + Reports 10g Builders with Release 12.

The next post in this blog is 10.2.0.3 Database Certified on Windows Server 2003 for Apps 11i.

Many more can be found on the main index page or by looking through the archives.

Archives

Subscribe to Updates

Powered by
Movable Type and Oracle