Reverse proxy and Web Dynpro

Hello everybody,
We have a portal with some web dynpro iviews in it and we want to use a reverse proxy to block direct access to the web dynpro's. The problem we encounter is that we can not block the web dynpro URL's because then they also do not work in the portal. This is not acceptable for us.
Has anyone encountered this problem or knows a solution?
Thanks.
Best Regards,
Christohpe

Hi,
does this help? http://help.sap.com/saphelp_nw2004s/helpdata/en/59/31ae42e0fac911e10000000a1550b0/frameset.htm
Regards, Heidi

Similar Messages

Installing reverse proxy and web dispatcher

I have come across a requirement for configuration of Reverse proxy & web dispatcher... to be installed on separate servers.
Can you help me know if SAP Web Dispatcher can run as a standalone component or will I have to install NW and then, install the SAR file. If we need NW, should I go for AS ABAP / JAVA... I believe it would be ABAP as we are using SAR file and not an SCA. Although, I wonder if my Web Dispatcher needs a database as I dont see any functional use of the database ?
How about reverse proxy.. Would it be good to go with IIS or with Apache.. Any other alternatives that you know of ?
I have been using Windows 2008 server & DB2 UDB.
Thanks,

Hi,
Please see the link below about the reverse proxy..
https://cw.sdn.sap.com/cw/docs/DOC-115672
For 'Dispatcher run as a standalone component' see the link below..
http://help.sap.com/saphelp_nwmobile71/helpdata/en/bc/0e774258449041e10000000a1550b0/content.htm
http://tleterme.developpez.com/bw/how/HowToWebDispatcher.pdf
Regards
Bhuban

Web Dispatcher - Reverse Proxy and Load Balancing

I'm finding limited docs on Web Dispatcher with regard to reverse proxy and load balancing. Are you aware of some recent presentations or docs in this area? The info on help.sap.com is not what I'm looking for.
Thanks.

Hi,
best thing is that you look at your scenarios and test the web dispatcher against each of it, like:
- SSL
- Portal only
- Web Dynpro ABAP / Java
- BSP
- Different backend systems like SRM, MDM
- Several backends with 1 Web Dispatcher
After getting a list of use cases that you can test quite easily (installation of Web Dispatcher is done fast and can be done on a local PC), you can contact SAP Support and ask them about the specific problems and questions you encountered. This way, you'll get the official answer, sometimes they will even inform you about "secret" parameters and options.
As of the reverse proxy functionality: there are several version of Web Dispatcher available that differ from the functionality offered. The latest version - 7.2 - is the one that offers the most, i.e. allows you to create rewrite rules like Apache.
SAP Note 908097 - SAP Web Dispatcher: Released releases and applying patches
br,
Tobias

Sun Web Server Reverse Proxy and Weblogic HTTP to HTTPS redirection

Hi,
I am currently testing reverse-proxy from SJSW 7.0 update 5 to Weblogic server but I have encountered an issue.
I have configured a context root to be forwarded to weblogic:
Web Server: www.server.com
URI: /path
Reverse Proxy URL: wlserver:9000
When I access https://www.server.com/path, I am getting the correct page. The issue is, the weblogic server is configured to redirect HTTP access to HTTPS, i.e., when I access http://www.server.com/path, it should be redirected to https://www.server.com/path. However, that is not the case. What happens is that I am being redirected instead to https://www.server.com/.
If I don't use reverse proxy, that is, if I use the libproxy.so from weblogic, I get the correct redirection.
Would appreciate it very much if someone can help me troubleshoot this issue.
Thanks in advance!
Edited by: agent_orange on Jul 29, 2010 2:30 AM
Edited by: agent_orange on Jul 29, 2010 2:31 AM

I am not sure, how you have configured your reverse proxy since you didn't attach / refer your current configuration file. this is how I would do it..
- create a new configuration (using web server 7 admin gui , within configuration wizard, disable java option if you plan to use web server 7 only for reverse proxy)
- select this new configuration and go to reverse proxy and try to reverse proxy / to the origin server.
that is all it should need.
your obj.conf or <hostname>-obj.conf depending on your configuration should look like following snippet
<Object name="default">
AuthTrans..
NameTrans fn=map from="/" to="/path" name="reverse-proxy-/"
</object>
<Object name="reverse-proxy-/">
Route fn=....
Service ..
</Object>
this is all you should need..
However, if you wanted to add complexity to your configuration, you could do some thing like
<Object name="default">
Auth..
<If defined $security>
NameTrans fn=map from="/" to="/path" name="reverse-proxy-/"
</If>
</Object>
<Object name="reverse-proxy-/">
Route...
</Object>

Apache reverse proxy and SSL termination

Hi Guru's
Can anyone tell me, how to do SSL termination at apache reverse proxy. I am using apache reverse proxy for accesing portal from internet. Apache is configured for SSL and portal is NON SSL.
I am using header variable login module in portal. i wanted to terminate SSL at apache reverse proxy and then all traffic after that should be clear text.
should i maitain any property. is there any documentation for it.
Please help me
Tom

The majority of the work here is around configuring your Web Dispatcher and Apache Reverse proxy. The work on the portal is straight forward enabling of SSL.
You can follow http://help.sap.com/saphelp_nw2004s/helpdata/en/f1/2de3be0382df45a398d3f9fb86a36a/frameset.htm for setting this up.
what level I need to configure SSL and how do I proceed in both scenarios?
Your question itself says where you need SSL. SSL is required where ever you need HTTPS communication.
how do I proceed in both scenarios?
From a portal perspective, the configuration should remain the same.
Do I have to install SSL at portal, web dispatcher or at Apache level?
SSL needs to be configured at all the 3 levels if you are looking at end to end SSL implementation.
See the following for possible SSL implementation options:
http://help.sap.com/saphelp_nw04/helpdata/en/d8/a922d7f45f11d5996e00508b5d5211/frameset.htm
https://cw.sdn.sap.com/cw/docs/DOC-115509
Will SSL termination work for scenario 2?
Yes this should work - see http://help.sap.com/saphelp_nw2004s/helpdata/en/36/fd39eacf4cde4a8fe32d7f29b3db16/frameset.htm
However in case of SSL Termination, the request to your portal from the web dispatcher will be sent as HTTP.
I would recommend you to take a step by step (backward approach).
First, enable SSL on your portal and make sure it works - going directly to the server.
Then, you can introduce the Web Dispatcher - and test if every thing works going through the web dispatcher.
Finally - you can test the end to end flow - with your Reverse proxy involved.
- Shanti

Problem on Setting up a Reverse Proxy on Web Proxy Server 4.0.1

After you setup a reverse proxy using Web Proxy Server 4.0.1, if you get the following error --
Proxy denies fulfilling the request
Your client is not allowed to access the requested object.You probably forget to add a regular mapping from: / to: http://http.site.com/. The information provided in 4.0.1 Administration guide is misleading. You will have to add it NOW manually. (Note: in 3.6 it will be added automaticly)
You will have to do the following step manually, what provided in the manual is misleading --
Sun Java� System Web Proxy Server 4 .0.1 Administration Guide 2005Q4
Chapter 14 Using a Reverse Proxy
"Setting up a Reverse Proxy"
5. To make the change, click OK.
Once you click the OK button, the proxy server adds one or more additional
mappings. To see the mappings, click the link called View/Edit Mappings.
Additional mappings would be in the following format:
from: /
to: http://http.site.com/

thanks, will verify and update the docs.
rahul.

Need in depth knowledge about Certficate request and install for Reverse proxy and CAS role

Hi,
I have few confusions about Exchange 2010/13 certificate request and install. As per my understanding best practise is to assign public CA certificate to Reverse proxy and Local CA certificate to CAS servers but need to know that what should be the format
of certificate request? Do we need to order public certificate just for mail.domain.com and add SAN for other web services URLs and is it required to add CAS array and server names to this certificate ? In what case we will add server names and what will happen
if we don't add in it ? How the outlook clients connecting from internet will be using this certificate? I have very limited knowledge in certificates and it always pisses me off. Please help me with explanations and articles. I tried to google and gone through
many articles but didn't get a fair idea. Thanks in advacnce. :)

Hi,
Here are my answers you can refer to:
1. Use the New-ExchangeCertificate cmdlet to generate a new certificate request:
New-Exchangecertificate -domainname mail.domain.com, autodiscover.domain.com -generaterequest:$true -keysize 1024 -path "c:\Certificates\xxxx.req” -privatekeyexportable:$true –subjectname "c=US o=domain.com, CN=server.domain.com"
2. CAS array name doesn’t need to be added in the certificate:
http://blogs.technet.com/b/exchange/archive/2012/03/23/demystifying-the-cas-array-object-part-1.aspx
3. It depends on the situation that you configured to add the server name.
4. Outlook clients use certificate for authentication.
If you have any question, please feel free to let me know.
Thanks,
Angela Shi
TechNet Community Support

Reverse Proxy in web dispatcher

Any statistic on which product is better / qualifies better to be used as a reverse proxy.. (& wherein generic (forward) proxy services can be disabled)
Web Dispatcher
Apache
Microsoft IIS
Any other product ?
Thanks,

Thanks !!!
> URL filtering: the Web Dispatcher 7.2 supports more than one SAP backend, but you should take a look into the confguration page at SAP Help to find out if it matches your future scenario.
I am looking for WD based on 7.3 for both the roles (Reverse proxy and load balancing). But I'll check if there is anything for me to be concerned about...
> looking at your scenario, you'll have at least 1 reverse proxy in your DMZ and the Web Dispatcher will be an additional reverse proxy (for internal and/or external access).
>
> The Web Dispatcher will be connected to the message server of the portal, so when a server/node goes down, the web dispatcher will be notified. That's a vantage over another reverse proxy.
Yes, we have one server reserved for reverse proxy software and another for load balancing (WD).. These two roles need to be on separate servers as per logistics requirement... So, is this what you are talking about..
User <> WD as reverse proxy on server1 <> WD for load balancing server2 <--> EP Message Server.

Reverse proxy and iWS 6.1 SP2?

Hey all,
i have 2 questions.
Can i use reverse proxy (and pass proxy) with iWS 6.1 SP2?
How must i configure the webserver to use this?
I need the following thing:
Client called https://server111.de/XXXXTruePassApp/ ---> Proxy get Data from https://server222.de/XXXXTruePassAppProxy/
Under Apache looks like that with mod_proxy:
ProxyPass /eCaSSTruePassApp/ https://server222.de/XXXXTruePassAppProxy/
ProxyPassReverse /eCaSSTruePassApp/ https://server222.de/XXXXTruePassAppProxy/
Thanks for help.
Greets Chmeee-de

Chmeee-de, I really don't think you should be using Sun ONE Web Server 6.1SP2. That version has known security vulnerabilities. Please consider applying the latest service pack, 6.1SP7.
Have you downloaded the Reverse Proxy Plugin? Have you tried reading the Reverse Proxy Plugin release notes? The release notes for Reverse Proxy Plugin 6.1SP7 are at http://docs.sun.com/app/docs/doc/820-0262/6nc0vpnc2?a=view.
Once you have the plugin installed and have edited the magnus.conf configuration file according to the release notes, you can add the following line immediately below the <Object name="default"> line in the obj.conf configuration file:NameTrans fn="assign-name" from="/XXXXTruePassApp/*" name="XXXXTruePassApp"This line indicates that requests for /XXXXTruePassApp/* should be serviced by an object named XXXXTruePassApp.
You can then create an object named XXXXTruePassApp by adding the following to the bottom of the obj.conf configuration file:<Object name="XXXXTruePassApp">
Service fn="service-passthrough" servers="https://server222.de"
</Object>

Arrowpoint Cookies, Reverse Proxy and Multiplexed Client Requests

Hi,
I have a reverse proxy which is performing SSL offload and making backend connections to two web servers. Between the reverse proxy and the two webservers, a CSS is in place to load balance between the web servers. There is a requirement for session stickiness on the web servers and since client IP details are lost through the reverse proxy I have used the arrowpoint-cookie method to load balance connections.
However, the reverse proxy seems to make only a handful of connections to the servers compared to the number incoming client connections and we have noticed that stickiness is broken. Now, I would assume this is correct if arrowpoint-cookie makes a load balancing based on the first HTTP get in a tcp stream and not on a per transaction basis AND our reverse proxy is multiplexing client requests. However, I can not convince myself of how the arrowpoint-cookie method actually works.
I wondered if anyone had any insight on this or had experienced similar issues with arrowpoint cookies?

Hi Gilles,
I have implemented this today, and we are still seeing issues with requests hitting the wrong server.
A bit more info, the reverse proxy is an AXG Web Aopplication Firewall. I have been looking at this and am considering disabling connection re-use on here.
However I am also wondering if this might be to do with the flow timeout multiplier I am using which is 5 (80 seconds). Perhaps this is too low?
Thanks, David.

Reverse Proxy and Load Balancer for SMP 2.3 and Agentry Application

Hi Expert,
I'm putting in place a mobile solution composed by SMP 2.3 SPS 4 and SAP ECC 6.0. In the SMP 2.3 I created the agentry server and I have deployed my agentry application.
My SMP/Agentry infrastructure is composed by two servers therefore I need a load balancer for balance the load into the several servers. Furthermore I need to use a reverse proxy in my DMZ zone.
Based on what indicated in the SAP note "1904213 - SAP Mobile Platform Server Release Information" the Apache Reverse Proxy is not supported for Agentry clients. Agentry uses nginx for Reverse Proxy.
I also found the following document How-to-Guide for Reverse Proxy and Load Balancing in SAP Mobile Platform 3.x that explain how to set-up a reverse proxy and load balancer with nginx and apache.
Both the SAP note and the HOW to document are refereed to SMP 3.0 and not to SMP 2.3.
I would know if the NGINX must be used also for SMP 2.3.
Any suggestion/information is appreciated.
Thanks in advance
g.

Please see Agentry Network Landscapes

Difference between ITS and web dynpro abap

Hi Experts.
Can any explain me what is the main difference between EWT/ ITS and web dynpro abap. Basically i am going to developed some existing EWT in webdynpro ABAP , so i want to know what are the advantage of WD ABAP over ITS .
Thanks in Advance.
Satya

Closing thread, thanks for your help.
Thanks,
Satya

Difference between web dynpro java and web dynpro abap

Hi this is watson maureen,
I wnat to know what is the difference between web dynpro java and web dynpro abap?
thank
maureen

Hi watson,
Go through these links, you will get the difference between web dynpro java and web dynpro abap
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/e0e4940c-035c-2b10-0b9d-eb8f99674f4e
Web Dynpro: ABAP or Java?
Regards
Sreedhar.

Using KM and Collaboration API in portal component and web dynpro

Hi,
I have to develop portal components and Web Dynpros (JAVA) which have to use the following functions:
- copy, delete KM documents
- sending E-Mails
Can anyone give me some actual documentation links for the KM and Collaboration APIs ?
Which references do I need in portalapp.xml for KM/collaboration and which jar-Files do I have to add to the project?
We are using NetWeaver 7.01 SP18.

Hi Yogalakshmi,
thank you for the link and the information. Now I managed to work with the KM documents.
One more Question: to get the resource Context, I use this code:
portalUser = WPUMFactory.getServiceUserFactory().getServiceUser("cmadmin_service");
IResourceContext resourceContext = new ResourceContext(portalUser);
The method getServiceUser is deprecated, also the com.sapportals.portal.security.usermanagement.IUser is deprecated. Is there an other possibility to get the ResourceContext. (perhaps with com.sap.security.api.IUser) ?

Is there any thing to Compare PDK and Web Dynpro

Is there any thing to Compare Enterprise Portal PDK and Web Dynpro .
please inform me what is the role of PDK and Web Dynpro in a project.
i am just confused by the terms

Hi Krishna,
The PDK (Portal Development Kit) is especially made to produce portal content based on jsp using the htmlb library. With the combination of JSP and tag libraries, you can even separate the presentation from the logic. However, the use of HTML tags, JSP tags and Scriptlet code demand great discipline when you develop Web applications, as otherwise the advantages of separating the presentation from the logic quickly disappear.
Web Dynpro applications are able to run in a portal also, you can make use of features like portal eventing also (two Web Dynpro based iViews can communicate with eachother as well as two iViews built with PDK). Using the Web Dynpro Client for Java (a beta-version will be available soon) you could use the same application within a SAPGui-like environment also. The new development environment for professional User Interfaces follows the model view controller paradigm and goes a few steps further in UI programming, e.g.:
- Screen management and screen flow
- Automatic data transport
- Re-usability of Web Dynpro components
- Session management
- Internationalization
- etc.
Both development tools are available with the SAP NetWeaver Developer Studio.
Hope that helps.
Best regards,
Karin

Reverse proxy and Web Dynpro

Similar Messages

Maybe you are looking for