Webdispatcher - Is this possible ?

[Former Member]

Hi ,

Is it possible to have two web dispatcher's that answer to the same hostname, situate one in the DMZ and one in the intranet. Your internal DNS should route internal requests to the IP of the internal Web Dispatcher while your external DNS should route users to the external IP. In this way you have a single URL (protocol://host:port) for the portal but two different physical entry points.

We wanted to make out portal ( in the intranet ) talking to external and internal users .

Also I would like to know if anybody ever had this kind of setupo and their experience

Thanks

Aneez

[Former Member]

Dagfinn ,

Is there any documentation around how to achieve this ?

Thanks

Aneez

[Former Member]

Hi Aneez, Jayant,

As Dagfinn suggested, you need to place the webdispatcher in DMZ.

There are 2 scenarios as i can see:

1)This works only if you distinguish portal users(as intranet and internet) based on roles only.

Try this weblog:

2)

we have 2 types of scenarios here too:

a) users logging from internet

b) users logging from intranet

>>>>>>> 1) user from internet will access the portal as follows:

https://sap1.name1.com:443/irj/portal(where 443 -- https port of the webdispatcher)

>>>>>>> 2) user from intranet will access the portal as follows:

http://sapportal.domainname.net:50000/irj/portal

You can try Dynamic System Resolution (http://help.sap.com/saphelp_nw04/helpdata/en/21/dfd241cb76c417e10000000a155106/frameset.htm) for this.

The idea is to make the resolution of the system dynamic. That means we define two system objects (one for remote and one for local) aliased "SystemXYZ_intranet" and "SystemXYZ_internet". During the computation of a webdynpro URL the AppIntegrator will resolve the value of the parameter "System". The iView will contain the value "SystemXYZ". If the customer is outside the intranet, it will return "SystemXYZ_internet".

You need to create a system resolving service based on whether the user is an intranet user or internet user!

Additionally, my earlier thread might help you.

If you can email me.. i can send you a doc on sap webdispatcher. Or you can refer to SAP library also:

http://help.sap.com/saphelp_nw04/helpdata/en/42/5cfd3b0e59774ee10000000a114084/frameset.htm

Hope it helps!

<b>Regards,

SK.</b>

<i>PS: Plz reward points! Thanks!</i>

[Former Member]

How it is possible ? CAn u advice ?

[Former Member]

Hi,

If you want to use 1 webdispatcher, then you need to place the webdispatcher in the DMZ and allow internal users to connect to it (if this is possible depends on company firewall rules). The internal and external dns entry for the portal should be the same.

Dagfinn

[Former Member]

Hi Aneez,

If you just want to distinguish intranet/extranet users.. you can as well do that with 1 webdispatcher..

Regards,

SK.

[Former Member]

Hi,

This seems like a sound idea that will work, but I've never done such a setup my self. Cannot see what the web dispatcher should complain about with this setup and it is a generically proven solution to have the same host point to different ips for the internal and external DNS.

Dagfinn

[Former Member]

Any body pls help on this