SAP webdispatcher for two ERP systems

[chris_mckay2]

Hi There,

I had a question regarding the approach that is needed to connect one webdispatcher system to two different ERP backend systems.

From what I understand the parameter: wdisp/system_X would be used to differentiate between the two different backend systems, but how would I differentiate between two different names.

For example:

My two backend systems are DEV and QAS. If someone enters gotoDEV.company.com in the browser, I would like it to redirect to the webgui on our DEV system, and if someone enters gotoQAS.company.com then it would go to QAS system.

We will be using a signed CA certificate on the server also and if possible I would like to just have one SSL certificate for both. Is this possible?? When the SSL certificate expires I would like to only have to renew the single one for both instances instead of having to renew one for gotoDEV.company.com and one for gotoQAS.company.com.

I have some experience with setting up webdispatchers, but setting it up to go to different systems is new to me, and any assistance would be greatly appreciated.

Kind regards,

Chris

[Former Member · Accepted solution]

Hi Chris,

The excellent wiki by covers everything you need.

Configuring the Web Dispatcher for Multiple Systems - Clarifications and Examples - Application Serv...

Cheers,

Amerjit

[isaias_freitas · Accepted solution]

Thank you for the "excellent wiki", Amerjit .

[chris_mckay2 · Accepted solution]

Hi Amerjit,

Thank you very much for pointing me to this document. Isaias has responded to me in the past and has been extremely helpful, I am sure this document will help in pointing me in the right direction. Thanks again for the very helpful information.

Kind regards,

Chris

[isaias_freitas · Accepted solution]

Always glad to help

[chris_mckay2 · Accepted solution]

Thank you Isaias. I've gone through the document, and as mentioned by Amerjit it is excellent!!

For my scenario I will be accessing two ERP systems, so I believe my settings would be the following: (I will also be accessing through multiple hostnames so two IP addresses will be setup on the webdispatcher)

icm/server_port_0 = PROT=HTTP, Port=80

icm/server_port_1 = PROT=HTTPS, HOST=gotoDEV.company.com, PORT=443, SSLCONFIG=ssl_config_0

icm/server_port_2 = PROT=HTTPS, HOST=gotoQAS.company.com, PORT=443, SSLCONFIG=ssl_config_1

icm/ssl_config_0 = CRED=gotoDEV.pse

icm/ssl_config_1 = CRED=gotoQAS.pse

wdisp/system_0 = SID=DEV, MSHOST=DEV.company.com, MSPORT=8100, SRCSRV=gotoDEV.company.com:*

wdisp/system_1 = SID=QAS, MSHOST=QAS.company.com, MSPORT=8100, SRCSRV=gotoQAS.company.com:*

icm/HTTP/redirect_0 = PREFIX=/ , FROM=* , FROMPROT=http, PROT=https, FOR=gotoDEV.company.com:*, HOST=gotoDEV.company.com

icm/HTTP/redirect_1 = PREFIX=/ , FROM=* , FROMPROT=http, PROT=https, FOR=gotoQAS.company.com:*, HOST=gotoQAS.company.com

wdisp/add_client_protocol_header = true

[isaias_freitas · Accepted solution]

Hello Chris,

Thanks!

Your setup seems correct!

Cheers!

Isaías