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Web Dispatcher as the Full reverse proxy

-0001-11-30   Views:2

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Hi all, Has anyone configured SAP Web Dispatcher(WD) as the full reverse proxy for THE portal? We need to open our portal on to the internet and we thinking to put WD inside the DMZ and have it forward the requests to the portal server. Which is expl

Hi all,
Has anyone configured SAP Web Dispatcher(WD) as the full reverse proxy for THE portal? We need to open our portal on to the internet and we thinking to put WD inside the DMZ and have it forward the requests to the portal server. Which is explained well in a blog on SDN. According to that Blog, WD works ONLY as a redirecting server (or may be a load balancer). When it redirects a request to an internal server, the ip(or domain name) of the server is shown in the address bar. Ex: http://extrenal.com is being redirected to http://internal:50000/irj/index.html thus exposing the internal name or IP.
I thought Reverse proxy when works, it hides the internal ips and and forwards the requests. So my question here is How to configure WD so it won't show the internal Portal IP(or domain name).
Any ideas?
I know it could be done using IIS, Apache or Squid.
Best,
N.

The replay answer
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Hi again,
Yes, most probably, you will have to configure specially the corporate reverse proxy.
That is what is explained in the WIKI and the help.sap.com documentation. Did you read it ? If not, do it, it's a must !
This is not very simple because SAP web applications, generate a lot of dynamic URLs  and must "know" that reverse proxies are used.
Understand that it is a project and not not just a 5 minutes configuration...
For example when using Apache as a reverse proxy, you need at least to set :
ProxyPreserveHost on and ProxyPassReverse
You need to decide if you want to rewrite URLS.
You need to manage URL mangling if you use BSP applications in the SAP backend.
In short, you need to know what is the corporate reverse proxy and you need to do a specific SAP configuration both on the corporate reverse proxy and the SAP web dispatcher.
This configuration depends from your specific needs.
Regards,
Olivier

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