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Former Member
Nov 12, 2009 at 12:18 PM

UWL Task does not open over Internet - WebDispatcher as reverse web proxy



I have SAP NW 7.0 system with following Usage Types:

AS Java Application Server Java

EP Core Enterprise Portal Core Components

EP Enterprise Portal

XSS Self Services

BP ERP Business Packages (Portal Content)

Requirement was to make ESS available over Internet.

So I installed SAP WebDispatcher on DMZ host and configure it to forward incoming request using Public URL to the SAP NW system.

As ESS fetches data from back end system (ECC), SSO had to be configured between SAP NW and ECC system which also works fine.

Now Everything on ESS portal over Internet works absolutely fine apart from one particular WebDynpro link - UWL task which is opened in a new pop-up window but it makes call using internal SAP NW hostname and not Public URL.

As per my understanding and analysis, this is the problem as SAP WebDispatcher is not configured as full fledged reverse web proxy. But after going through all the available online resources I have come to the conclusion as WebDispatcher is bound to fail in such scenario and some third part reverse web proxy product is required. Somewhhere I also found that WebDispatcher with SPNego can be used as full fleded reverse web proxy but could not find anything further.

Please confirm my understanding/conclusion or suggest if still there is any workaround/solution to my problem.

Thanks & Regards,

Kashyap Shah

SAP Technology Consultant