Portal, BI, & SSO with Reverse Proxy

Hello,
We recently integrated BI (7.0) into our portal environment (EP 7 SP10). Single sign-on was working fine until we needed to allow external users into our system so we had to implement a reverse proxy. This has caused our single sign-on to stop working. It broke in our other systems as well, but for those we have a separate Java stack & made changes to it to get it to work. For our BI environment, we do not have Java. We installed the BI Java component onto the portal server so we could use BI there. Any ideas?
Thank you for your time,
Erin Byrne

Well BI is your ticket generator in this scenario so you don't need to import any certificate into BI... instead it's the BI certificate you need imported into the Portal since Portal is now the ticket acceptor.
When you're in Query Designer and you attempt to publish your Query you're calling a module called BEx Broadcaster. This is used to "brodcast" your query to a web host.
Check out these links from the Security Guide for BI for more info. I think your answer is here.
Publishing in the Portal
http://help.sap.com/saphelp_nw2004s/helpdata/en/4b/b41540bf1af72ee10000000a1550b0/content.htm
Information Broadcasting in the Web Note scenario 3.
http://help.sap.com/saphelp_nw2004s/helpdata/en/00/b41540bf1af72ee10000000a1550b0/content.htm
Let us know how you fair.
-Kevin

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Chek below:
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Regards Christian
Edited by: Christian Kaiser on Jan 26, 2012 9:53 AM

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============================================
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HCI/ECC connection issue with reverse proxy

Hi,
we are struggling to set up the connection from C4C to ECC using a reverse proxy (apache).
Thank you for any help!
Best Regards
Florian
Our apache config is as follows:
<VirtualHost *:443>
ServerName customer.reverseproxy.com
SSLEngine On
SSLProxyEngine On
ErrorLog /var/www/customer/log/error.log
Customlog /var/www/customer/log/access.log "common"
# TransferLog "<Apache_home>/logs/access.log"
# Offical SSL Certificate for customer.reverseproxy.com
SSLCertificateFile "/etc/apache2/ssl/customer/customer_cert.pem"
SSLCertificateKeyFile "/etc/apache2/ssl/customer/customer_key_np.pem"
SSLCACertificateFile "/etc/apache2/ssl/customer/SSL123_CA_Bundle.pem"
# SSLCertificateChainFile "<Apache_home>/conf/proxy-server-ca.crt" # activate the client certificate authentication
#SSLCertificateChainFile "/etc/apache2/ssl/customer/SAP-CA.crt"
# Signing CA's for SAP client certificate (Baltimore CyberTrust Root & Verizon Public SureServer CA G14-SHA2 + more)
SSLCertificateChainFile "/etc/apache2/ssl/customer/SAPClientCA.pem"
SSLVerifyClient require
SSLVerifyDepth 10
SSLOptions +ExportCertData +StdEnvVars
# CA's from SAP and customer for backend connections between Proxy and SAP system (Baltimore CyberTrust Root & Verizon Public SureServer CA G14-SHA2 + more)
SSLProxyCACertificateFile "/etc/apache2/ssl/customer/SAP-CA.crt"
# SSLProxyMachineCertificateFile <Apache_home>/conf/proxy-client.pem
# initialize the special headers to a blank value to avoid http header forgeries
RequestHeader set SSL_CLIENT_CERT ""
<Location />
 # add SSL_CLIENT_CERT header to forward real client certificate
 RequestHeader set SSL_CLIENT_CERT "%{SSL_CLIENT_CERT}s"
 ProxyPass https://sap.internal.com:8300/
 ProxyPassReverse https://sap.internal.com:8300/
</Location>
</VirtualHost>
On the HCI we get the following error shown
Message Processing Log{
ContextName = com.sap.scenarios.cod2erp.customermaster.replicate
IntermediateError = true
MessageGuid = AFU2MVOblsS5yIwpSvYiCt7XnLaT
Node = vsaxxxxxx.od.sap.biz
OverallStatus = FAILED
ReceiverId = Q47_
StartTime = Tue Apr 21 11:15:31 UTC 2015
StopTime = Tue Apr 21 11:15:31 UTC 2015
Children [
 Invoked endpoint{
 Cxf.EndpointAddress = https://HCI.intaas.hana.ondemand.com/cxf/COD/ERP/BP_MASTER_REPLICATION
 Error = Inbound processing in endpoint at https://HCI.intaas.hana.ondemand.com/cxf/COD/ERP/BP_MASTER_REPLICATION failed with message "Sequential processing failed for number 0. Exchange[Message: [Body is not logged]]. Caused by: [org.apache.cxf.interceptor.Fault - Could not send Message.]", caused by "SunCertPathBuilderException:unable to find valid certification path to requested target"
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 Status = FAILED
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Entering Camel route route52{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-38 created in Endpoint[cxf://bean:my308416_]{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-38 in ref:encodingProcessor{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = process151
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-38 in removeHeaders[*]{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = removeHeaders52
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-38 in setHeader[MessageId]{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = setHeader76
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-38 in sap-map-pi:COD_ERP_BusinessPartnerERPBulkReplicateRequest{
 Sent To URI = sap-map-pi://COD_ERP_BusinessPartnerERPBulkReplicateRequest
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = CallActivity_1
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Time Taken = 11
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-38 in ref:idocOutboundRequest{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = process152
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 com.sap.sod.utils.idoc.soap.messageid= 00163E0CB1A01EE4BA82F713C72AD65B
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-38 in split[bean{idocPackageSplitter, method=split}]{
 Error = org.apache.camel.CamelExchangeException: Sequential processing failed for number 0. Exchange[Message: [Body is not logged]]. Caused by: [org.apache.cxf.interceptor.Fault - Could not send Message.], cause: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = CallActivity_2
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Successor Exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-39 created with reference to Exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-38{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-39 in setHeader[SapIDocContentType]{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = setHeader77
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-39 in removeHeader[ssl_client_cert]{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = removeHeader197
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-39 in removeHeader[ssl_client_user]{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = removeHeader198
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-39 in removeHeader[operationName]{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = removeHeader199
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-39 in removeHeader[operationNamespace]{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = removeHeader200
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Children [
 Processing exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-39 in cxf:bean:Q47_{
 Error = org.apache.cxf.interceptor.Fault: Could not send Message., cause: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
 Sent To URI = cxf://bean:Q47_
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 StepId = MessageFlow_2
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Time Taken = 123
 Children [
 Sent message to endpoint{
 Cxf.EndpointAddress = https://customer.reverseproxy.com:443/sap/bc/srt/idoc?sap-client=310
 Error = Outbound processing in endpoint at https://customer.reverseproxy.com:443/sap/bc/srt/idoc?sap-client=310 failed with message "Could not send Message.", caused by "SunCertPathBuilderException:unable to find valid certification path to requested target"
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 Status = FAILED
 StopTime = Tue Apr 21 11:15:31 UTC 2015
 Exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-39 failed{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 Status = FAILED
 Exchange ID-vsaxxxxxx-od-sap-biz-40387-1427614280233-51-38 failed{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
 Status = FAILED
 Children [
 Exiting Camel route route52{
 StartTime = Tue Apr 21 11:15:31 UTC 2015
ReceiverIds [
 Q47_

Hi Abinash,
now we are one step further and receive a HTTP 401 on the reverse proxy. It looks like the client cert from HCI is not handled correctly. Can you help?
Best Regards
Florian
HCI log
Sent message to endpoint{
Cxf.EndpointAddress = https://customer.reverse.com:443/sap/bc/srt/idoc?sap-client=310
Error = Outbound processing in endpoint at https://customer.reverse.com:443/sap/bc/srt/idoc?sap-client=310 failed with message "HTTP response '401: Unauthorized' when communicating with https://customer.reverse.com:443/sap/bc/srt/idoc?sap-client=310"
StartTime = Fri Apr 24 11:03:12 UTC 2015
Status = FAILED
StopTime = Fri Apr 24 11:03:12 UTC 2015
Apache config
<VirtualHost *:443>
ServerName cuscrm.webmail.cus.com
SSLEngine On
SSLProxyEngine On
ErrorLog /var/www/cuscrm/log/error.log
Customlog /var/www/cuscrm/log/access.log "common"
# TransferLog "<Apache_home>/logs/access.log"
# Offical SSL Certificate for cuscrm.webmail.cus.com
SSLCertificateFile "/etc/apache2/ssl/cuscrm/cuscrm_cert.pem"
SSLCertificateKeyFile "/etc/apache2/ssl/cuscrm/cuscrm_key_np.pem"
SSLCertificateChainFile "/etc/apache2/ssl/cuscrm/ThawteCAChain.pem"
# SAP Baltimore Cybertrust Chain for Client authentication
SSLCACertificateFile "/etc/apache2/ssl/cuscrm/SAPCybertrust.pem"
SSLVerifyClient require
SSLVerifyDepth 10
SSLOptions +ExportCertData +StdEnvVars
# CA's from SAP and Schunk for backend connections between Proxy and SAP system
#SSLProxyCACertificateFile "/etc/apache2/ssl/cuscrm/SAP-CA.crt"
SSLProxyCACertificateFile "/etc/apache2/ssl/cuscrm/SAPCHAIN.pem"
# SSLProxyMachineCertificateFile <Apache_home>/conf/proxy-client.pem
# initialize the special headers to a blank value to avoid http header forgeries
RequestHeader set SSL_CLIENT_CERT ""
<Location />
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RequestHeader set SSL_CLIENT_CERT "%{SSL_CLIENT_CERT}s"
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ProxyPassReverse https://internal.sap:8300/
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DMZ with reverse proxy

Hi All,
I am trying to configure DMZ.
But I am having only one node for apache.
So I thought of configuring DMZ using Reverse Proxy with no External node.
But I am bit confused with configuration of Reverse Proxy using the apache shipped with E-business
My current archecture like:
Node 1 : Apache ,Forms and MWA
Node 2 : CM and DB
OS : AIX 5.3
Version : 11.5.10.2
DB : 10.2.0.4
1.Will there be 2 apache process running as applmgr on node1(one for external and other for internal)
2.Will there be 2 context files in node1 (one for external and other for internale)
3.How to configure 2 Server name for node1
Thanks in advance

Hi,
Did you review (Note: 438744.1 - Case History: Implementing a Reverse Proxy Alone in a DMZ Configuration - 11i)?
Regards,
Hussein

Windows Intergrated Authentication with reverse proxy issue with Safari

Hi All
I having a application which has Windows Integrated Authentication, for Internet users we are having a reverse proxy which has a IIS server which will authenticate using basic authentication then redirected to the actual application, every thing works as expected in IE and firefox but in safari there is a second login dialog box appears. When I did a packet capture using wireshark I noticed that in IE and FF the basic authentication which is carried forward to the actual application from IIS server but in Safari there is a NTLM negotiation in between because there is a 401 response so my application asks for on more login dialog. Dose any one knows why safari is behaving like this?
Thanks & Regards
Karthikeyan Vaithilingam

I found a related post https://discussions.apple.com/thread/3274071?start=0&tstart=0. There is an issue with basic authentication and Http Redirect.

Is this dynamic caching scenario possible with reverse proxy?

I'm considering using the Sun System Java Web Server as a reverse proxy in front of other SSJWS's running a java webapp. I'm creating a dynamic site where most of the pages change only occasionally. I'm wondering if the follow "dream compression/caching" scenario is possible:
- Origin web servers have a set of high traffic dynamic pages that change only occasionally. Other pages (could be partition in subdirs) should not be cached.
- These dynamic pages set cache and expires headers allowing browser and proxies to cache the content--say for hours or days. It's ok if users see a slightly stale page within this expiration period.
- Reverse proxy caches these pages as if they were static files. They also create gzipped versions on the fly and cache those. When requests comes in for these specific pages, they are served straight from proxy cache (either compressed or uncompressed depending on request header.)
- When the expiration date is reached, reverse proxy requests fresh pages from the origin server, creates a compressed version, and only servies these pages from cache.
- A certain set of pages shouldn't be cached and will have appropriate headers. They will probably also be in different subdirectories.
Is it possible to use the reverse proxy as a self-updating cache this way? (And it it possible to proactively invalidate the cache. Let's say I change a page on the origin and I want the proxy to refresh that cached page right away.)
Thank you,
Armando

I see. Thank you, this is very helpful.
I've take taken a look at Web Proxy 4. It seems it can do much of what I'd like. One downside I see is that it seems to be quite a big tool with all of the forward proxying features that I don't need. I just need a transparent reverse proxy/cache, so it would have been nice if the reverse proxy provided by Sun Web Server offered some of the caching features of Web Proxy 4.
Does Web Proxy 4 share code with Web Server? I haven't any seen any buzz, blogs, etc about it as I have with Sun Web Server. I see it now has a "modern HTTP core" and such but is performance on par with Web Server? (There are no trumpeted world records, and I don't see any architecture details, such as the ability to leverage event ports on Solaris...)
It looks like Web Proxy 4 can be configured as a reverse proxy to do sticky load balancing, caching with interval checks, and on the fly gzip compression. Can it: cache both a compressed and uncompressed version of the content? Run other filters on the content before caching, such as the sed content trip filter? I haven't really seen anything out there that can do all that. If this is possible, then Web Proxy 4 deserves more buzz!
If anyone has any good or bad experience using Web Proxy as a reverse proxy, I'd love to hear it!
Cheers!
Armando

Portal, BI, & SSO with Reverse Proxy

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