multiple webdispatcher behind a apache reverse proxy with landingpage

[bjoern_tralls]

Hello all,

i hope i post this question in the correct category.

i got a problem to get a landingpage work with more than one sap system. We use an apache reverseproxy in our DMZ. On this machine is a website, our landingpage. From this site i am able to redirect the user to our internal SAP Solution-Manager. Until here everything works fine.

Now i want to connect the reverse proxy with another SAP System too. Both systems work with the same relative URL called /sap/bc/... . The reverse proxy can't make a difference between these machines because both use the same relative string. For me it is not possible to it translate correctly.

My prefered solution is to manipulate the generated URL from the sap-machines in the following form.

Server1 -> /1/sap/bc/...

Server2 -> /2/sap/bc/...

Until yet I d'ont found a solution. But I'm sure there is a solution like the sap.com webserver show.

Any suggestions?

Regards,

[Former Member]

Hi,

Do you find a solution ?

Thank you,

Philippe

[michael_mulvey]

Hi Bjoern,

Please refer to the following link at this is what you need to consider. There is also a link to Apache section at the end

http://wiki.sdn.sap.com/wiki/display/BSP/Using+Proxies

Hope this helps

Michael

[bjoern_tralls]

Hi,

Thanks for your answer Oliver. Maybe I have to explain my problem in detail.

I know the Rewrite function and i am able to use it. That's not my problem.

I got two Solution-Manager SAP-Systems an one Reverseproxy.

Both Webdispatcher from SAP-Systems shall be reached through the Reverseproxy.

It's no problem to reach every SAP-System in the first step. I am able to mask the URL under one domainname.

p. ex. www.domain.com

ProxyPass /SAPSID1 http://server1/sap/bc/.

ProxyPassReverse /SAPSID1 http://server1/sap/bc/.

ProxyPass /SAPSID2 /SAPSID1 http://server2/sap/bc/.

ProxyPassReverse /SAPSID2 http://server2/sap/bc/.

Now i am able to use the URL www.domain.com/SAPSID1 and www.domain.com/SAPSID2 to reach each SAP-system.

But...

I got from each system a not clean Loginpage (headertranslation works correct) but the tool http-watch show me the webcontent (i think java css) starts some requests with "/sap/bc".

Both systems generate the same relativ URL ("/sap/bc") so i cannot make a difference between them with Reverseproxy.

So...

Is there a possibility generate customized relativ URL's on SAP-system?

org: /sap/bc/...

cust: /SAPSID1/sap/bc/...

Now i hope you understand the problem.

Regards

[Former Member]

Hi Bjoern,

>Is there a possibility generate customized relativ URL's on SAP-system?

I don't think so. But it is perfectly possible to manage the same URLs from different SAP systems with Apache as a reverse proxy. You have to use ProxyPassReverse directives between for each Location.

Something like

<Location /SAPSID1>

Order allow,deny

Allow from all

ProxyPassReverse http://server1:80

</Location>

<Location /SAPSID2>

Order allow,deny

Allow from all

ProxyPassReverse http://server2:80

</Location>

It can be tricky but it is definitively possible.

Regards,

Olivier

[Former Member]

Hello,

>Server1 -> /1/sap/bc/...

>Server2 -> /2/sap/bc/...

You can perfectly use this technique with an Apache reverse proxy.

You just have to use rewrite rules of this kind

RewriteRule ^/1/sap/bc/(.*) http://server1/sap/bc/$1 [P]

RewriteRule ^/2/sap/bc/(.*) http://server2/sap/bc/$1 [P]

Check the SDN wiki on reverse proxies, it is very interesting !

Regards,

Olivier