Issue in Installing Sap Web Dispatcher

Hi Experts,
We have Installed Sap Web Dispatcher in our landscape for https connection and we have generated the pse certificate .We were stuck in the next step as we have to forward this request to a certification authority such as Verisign or Thawte.
Can you please let us know the process on how we have to forward this request to Certification Authority.
Thanks in Advance..
Regards,
Krishna.M

Hi,
You are right ... It does NOT matter.
Here is no unicode/non-unicode version available for the webdispatcher.There is only one version available, and this use the non-unicode kernelpackage. You can carry on with the installation without any problem.
Rgds,
Sheikh Saggaf

Similar Messages

A question about SAP Web Dispatcher

Following paragraph is copied from TADM10_2 book, Page 39 (Participant Handbok, 2005Q4, 50074912). My question is why there are two same items - ABAP-only scenario? I might be print issue.
The SAP Web Dispatcher can be used for load balancing in the following scenarios:
* Java-only scenario, as described here.
* ABAP-only scenario (see SAP customer training course ADM102, SAP Web AS Administration II)
* ABAP-only scenario (see SAP customer training course ADM102, SAP Web AS Administration II)
Please advise. Thanks so much.
James

HI,
Yes, I think its a print mistake. It should be ABAP Only and Both ABAP and Java Instance.
Rgds
Radhakrishna D S

Support pakages and patch sap web dispatcher

Hi,
I have install sap web dispatcher on a sap server on abap stack.
I have download support packages for web dispatcher form sap mark.
Anybody know how can I patch web dispatcher with u201Csapwebdisp_86-20003979.saru201D file..
Thanks for any help.

Hi my friend
Just unzip the SAR file and replace the old files with the latest, like replacing kernel files.
Note 908097 - SAP Web Dispatcher: Released releases and applying patches
Regards,

SAP Web Dispatcher Configuration in a FPN

Hi all,
We are using SAP Web Dispatcher 720 (latest patch 85).
We are having a FPN network. One consumer portal, with more than 5 producer portal (ECC JAVA, BW JAVA..etc) and more than 5 different backends (ECC, BW, SRM..etc)
We are using SSL termination at the web dispatcher.
We have configured all our consumer, producer, backends in our web dispatcher instance, to use the domain name with different ports.
Eg :
https://domainname.com - refers to our consumer portal
https://domainname.com:7110 - refers to our producer portal 1
https://domainname.com:7111 - refers to our producer portal 2
https://domainname.com:6100 - refers to our ABAP backend system 1
https://domainname.com:6111 - refers to our ABAP backend system 2 ..etc..,
by configuring so, we are facing lots of page not found issue intermittenly, as SAPlb cookies are passed incorrectly, since all refers to the same domain name (it ignores the different ports).
Can someone helps us to narrate how to configure web dispatcher which suites our FPN network. We can't go for different URLs for each system, as it requires more than 16 URLs and 16 web dispatcher instances.
Can someone share their experience
Thanks & Regards
Senthil

Hello Ravi,
Try to include directory 'admin' within directory
'sapwebdisp'.
You can let sapwebdisp create a sapwebdisp.pfl on your
behalf with option '-bootstrap'.
You will see the password for user 'icmadm'.
and this line
"icm/HTTP/admin_0 = PREFIX=/sap/wdisp/admin,DOCROOT=./admin"
Then you use URL
'http://sapwedisphost:<xxxx>/sap/wdisp/admin/default.html'
See this documentation in
'http://help.sap.com/saphelp_nw04/helpdata/en/b4/9aa8862e714e6db8e74e48e5d3283b/frameset.htm'
(specially topic "Monitoring ..."
Kind Regards,
Toni

SAP Web Dispatcher does not start as windows service

Hi,
I have successfully installed and configured SAP Web Dispatcher. When I start the web dispatcher from command prompt, it works fine. I created a windows service for web dispatcher using the command
ntscmgr install sapwebdisp -b "c:\program files\sap\sapwebdisp\sapwebdisp.exe"
-p "service pf=sapwebdisp.pfl -cleanup -auto_restart"
The command successfully created sapwebdisp service. The service also starts fine, but web dispatcher does not get started.
Any ideas experts?

Hi,
Ok. Few suggestions.
1. Can you review the SAP note:
552286 Troubleshooting for the SAP Web Dispatcher
2. When you said: "web dispatcher does not get started ", what error you got ? Can you be more details here ?
3. Please check the trace file dev_webdisp" that generated in the work directory. If the log entries is not abvious, increase the trace level to 2 or 3, and reproduce and re-check the trace file.
4. What is the output of the command "sapwebdisp -v"
5. How about sapwebdisp.pfl ? Are those settings correct ?
Hope this helps.
Regards,
Vincent

SAP Web dispatcher not forwarding incoming HTTP portal sessions.

Hello,
We are using an EP6 Portal from which Abap Web dynpros are launched. The incoming http sessions were accessing our backend ECC6 SAP system through the sap server message . The http sessions were badly dispatched between the two abap servers. We have been advised by SAP to use the sap web dispatcher instead.
The sap web dispatcher has been correctly installed and configured (on the central abap instance ).
I have carefully read the SAP help section concerning the server selection using the sap web dispatcher :
http://help.sap.com/saphelp_nw04s/helpdata/en/5f/7a343cd46acc68e10000000a114084/frameset.htm
All our settings seem to be OK :
The incoming HTTP requests are forwarded to abap servers only.
*In transaction SICF, all the services under the tree
sap/public/icf_info have been assigned to the same logon group .
The capacity of the two servers included in the logon
group " is the same :
server40 LB=12
server60 LB=12
In the Web interface, capacity equal "1" for the two servers.
wdisp/load_balancing_strategy= weighted_round_robin
In the SAP web interface, the prefered server is ALWAYS the same :
Status of Server Group "LOADIS"
Loadbalancing Information
Number of Servers in this group 2
Last used Server
Preferred next Server server40_SPA_10
But it seems that the sap web dispatcher is not used at ALL.
The Load distribution is still based on the SMLG workload as it was the case, before, with the sap message server. The information displayed in the web interface (preferred server) is wrong.
The Preferred next Server is ALWAYS server40_SPA_10 (shown in the web interface), but, in fact, the http sessions are distributed between the two servers server60_SPA_00 and server40_SPA_10 depending on the server quality diplayed in transaction smlg. It was exactly the same behaviour we had before, only with the sap server message .
Any useful help would be highly appreciated.
Best Regards.

Hi,
firstly, have you checked note 1094342? What variant do you want to use? Do you terminate a SSL connection on web dispatcher and create a new one between web dispatcher and application server? It looks like the web dispatcher can't verify SSL certificate used by application server. Maybe you've already tried this but you can try to turn off SSL between dispatcher and application server. If this setup works then problem is in SSL connection. You can check what host name is used in SSL certificate and what host name is used by dispatcher. You can use parameter wdisp/ssl_certhost which sets host name which will be used for certificate validation.
Cheers

SAP Web Dispatcher in a high availability environment

Hello, guys
We are working in a CRM 7.0 implementation Project. Our system landscape is the following:
   - Two hosts (host1 & host2) on MSCS cluster (Windows 2008) with SQL Server and ASCS in high availability. Additional, this MSCS cluster has a instance of SAP Web Dispatcher.
   - In these two host weu2019ve installed a CI & DI instance, outside of high availability scope
   - Two additional hosts (host3 & host4) with one dialog instance in every host
We have severe problems with communication between SAP Web Dispatcher and ICM components. Our configuration schema is the next:
   - ASCS (MSCS_virtual_hostname):
ms/server_port_0 = PROT=HTTP,PORT=8141
SAPLOCALHOSTFULL = <MSCS_virtual_hostname>.<domain>
   - IC (host1)
icm/server_port_0 = PROT=HTTP,PORT=8040,TIMEOUT=90,PROCTIMEOUT=600
icm/host_name_full = <host1>.<domain>
   - ID1 (host2)
icm/server_port_0 = PROT=HTTP,PORT=8044,TIMEOUT=90,PROCTIMEOUT=600
icm/host_name_full = <host2>.<domain>
   - ID3 (host3)
icm/server_port_0 = PROT=HTTP,PORT=8045,TIMEOUT=90,PROCTIMEOUT=600
icm/host_name_full = <host3>.<domain>
   - ID4 (host4)
icm/server_port_0 = PROT=HTTP,PORT=8046,TIMEOUT=90,PROCTIMEOUT=600
icm/host_name_full = <host4>.<domain>
   - SAP Web Dispatcheer (MSCS_virtual_hostname):
SAPGLOBALHOST = <MSCS_virtual_hostname>
SAPLOCALHOSTFULL = <MSCS_virtual_hostname>.<domain>
SAPLOCALHOST = <MSCS_virtual_hostname>
SAPLOCALHOST = <MSCS_virtual_hostname>
ms/http_port = 8141
icm/server_port_0 = PROT=HTTP, PORT=8042,TIMEOUT=30,PROCTIMEOUT=600
wdisp/add_xforwardedfor_header = TRUE
In SAP Web Dispatcher log weu2019ve found the following error messages:
Fri Jan 28 15:45:22 2011
***LOG Q0I=> NiPConnect2: connect (10061: WSAECONNREFUSED: Connection refused)
*** ERROR => NiPConnect2: SiPeekPendConn failed for hdl 6 / sock 130060
    (SI_ECONN_REFUSE/10061; I4; ST; 192.168.6.182:8044)
*** ERROR => Connection request to host: , service: 8044 failed (NIECONN_REFUSED)
SAP Web Dispather is trying to connect to connect with dialog instances through , which itu2019s incorrect (ports 8044, 8045 & 8046 are opened in dialog instances, not in virtual instance). I think it should try with real hostnames (host1, host2, host3 & host4).
¡¡Please, help!! Thanks in advance

Hello, Karthi,
Our Web Dispatcher profile looks as following:
Instance specific parameters
Maybe some of these parameters are needless
SAPSYSTEMNAME = <CRM SID>
INSTANCE_NAME = <WD SID>
SAPSYSTEM = <WD System number>
SAPGLOBALHOST = <virtual hostname of WD>
SAPLOCALHOSTFULL = <FQDN of virtual hostname of WD>
SAPLOCALHOST = <virtual hostname of WD>
Directorios
DIR_INSTANCE = R:\usr\sap\wd
DIR_INSTALL = R:\usr\sap\wd
DIR_CT_RUN = $(DIR_EXE_ROOT)\$(OS_UNICODE)\NTAMD64
DIR_EXECUTABLE = R:\usr\sap\wd
DIR_PROFILE = R:\usr\sap\wd
DIR_HOME = R:\usr\sap\wd
DIR_ICMAN_ROOT = $(DIR_INSTANCE)\icmanroot
R:\usr\sap\wd\global\security\data
Accesibilidad al Message Server
rdisp/mshost = <virtual hostname of CRM Message Server>
ms/http_port = <HTTP port of CRM Message Server>
HTTP Settings
Puerto estandar de acceso HTTP
icm/server_port_0 = PROT=HTTP, PORT=8042,TIMEOUT=30,PROCTIMEOUT=600
These parameters defines load balancing weights
#wdisp/server_00 = NAME=<hostname_SID_SYSNR>, LB=4, ACTIVE=0
#wdisp/server_01 = NAME=<hostname_SID_SYSNR>, LB=10, ACTIVE=1
#wdisp/server_02 = NAME=<hostname_SID_SYSNR>, LB=20, ACTIVE=1
#wdisp/server_03 = NAME=<hostname_SID_SYSNR>, LB=20, ACTIVE=1
Puerto de acceso interfaz web de administrador
icm/HTTP/admin_0 = PREFIX=/sap/admin, DOCROOT=$(DIR_ICMAN_ROOT)/admin, AUTHFILE=$(DIR_INSTANCE)\sec\icmauth.txt
Activaciu00F3n de la cachu00E9 de SAP Web Dispatcher
icm/HTTP/server_cache_0/http_cache_control = true
icm/HTTP/server_cache_0 = PREFIX=/, CACHEDIR=$(DIR_INSTANCE)\cache
Fichero de log de seguridad
icm/security_log = LOGFILE=$(DIR_HOME)\log\security_%y%m%d.log, SWITCHTF=day, MAXSIZEKB=1024, FILEWRAP=off
icm/HTTP/logging_0 = PREFIX=/, LOGFILE=$(DIR_HOME)\log\wd_log_%y%m%d.log, SWITCHTF=day, MAXSIZEKB=1024, FILEWRAP=off
icm/log_level = 1
Dispatcher Configuration
wdisp/add_xforwardedfor_header = FALSE
Parametrizacion de memoria
Datos de sizing de los que se parten                                #
#users = 1800 usuarios (900 concurrentes)
#req_per_dialog_step = 6 peticiones HTTP por paso
#thinktime_per_diastep_sec = 10 seg. de "thinktime"
#conn_keepalive_sec = 30 seg. mantener conexiu00F3n abierta con ICM
#icm/max_conn = users * req_per_dialog_step * conn_keepalive_sec / thinktime_per_diastep_sec
icm/max_conn = 16200
wdisp/HTTP/max_pooled_con = icm/max_conn
wdisp/HTTP/max_pooled_con = 16200
icm/max_sockets = al menos la suma de icm/max_conn y wdisp/HTTP/max_pooled_con
icm/max_sockets = 32400
mpi/buffer_size = 64K = 64 * 1024 = 65536
mpi/buffer_size = 65536
mpi/total_size_MB = icm/max_conn * mpi/buffer_size (hay que convertir mpi/buffer_size a MB)
mpi/total_size_MB = 1024
icm/req_queue_len = icm/max_conn / 2
icm/req_queue_len = 8100
icm/min_threads = icm/max_conn / ~50
icm/min_threads = 512
icm/max_threads = icm/max_conn / ~20
icm/max_threads = 1024
Parametrizacion de seguridad
Evitar el envu00EDo de mensajes tu00E9cnicos al usuario final
is/HTTP/show_detailed_errors = FALSE
#icm/HTTP/error_templ_path
And ICM parameters are:
- SAPLOCALHOSTFULL= <FQDN of every application server>
- icm/server_port_0 = PROT=HTTP,PORT=8080,TIMEOUT=90,PROCTIMEOUT=600:
- icm/host_name_full = <FQDN of every application server> ## This parameter is ignored if SAPLOCALHOSTFULL is defined
I hope it helps you.
Best regards,
Sergio Su00E1nchez

SAP WEB Dispatcher for Two systems

Hi experts,
i want to configuration SAP web dispatcher for two hosts
web dispatcher has installed on saprate host( host are accessible via public ally) and other host contains two ABAP system are in same host.
i have configure two HTTP ports in the Web Dispatcher profile
icm/server_port_0 = PROT=HTTP, PORT=8888
icm/server_port_1 = PROT=HTTP, PORT=7777
In addition, you define the system assignments, as follows:
wdisp/system_0 = SID=ERP, MSHOST=ms_erp, MSPORT=8082, SRCSRV=*:8888
wdisp/system_1 = SID=CE1, MSHOST=ms_erp, MSPORT=8127, SRCSRV=*:7777
but i want to know how can do the url mapping i want to open WEBGUI for both ABAP systems.
and how can access?
Please suggest.
Regards,

Hi Vivek,
Check the below link, I think it would help you with the configuration.
One Web Dispatcher, Multi Systems with URL Prefixes
And also read the below document for the Mapping of one SAP Webdispatcher to Multiple Systems.
http://help.sap.com/saphelp_nw73ehp1/helpdata/en/b0/ebfa88e9164d26bdf1d21a7ef6fc25/content.htm
Regards,
Sushil

Client authentication in PI when SAP Web dispatcher terminates SSL

PI Security Experts,
Here is our design for Third-party Peoplesoft system initiating SOAP Call to PI Web Service created on our PI server.
1) Third-party Peoplesoft Application server initiates a SOAP call.
2) Third-party Network Gateway has a URL server certificate from our gateway and our gateway server has a root certificate from the CA used by third-party gateway. this will be used to establish the SSL tunnel between gateway.
3) SOAP request in our network will be routed through load balancer to SAP web dispatcher.
4) SAP web dispatcher terminates SSL connection
5) We will generate client cert for authentication and pass it onto third-party which they will load onto their PeopleSoft application server. SOAP call initiating from the PeopleSoft server will pass the client cert along with the message (My understanding is that the client cert will not be a part of SOAP message body. Ina other words we are not implementing message-level security. Is that true? How will the client cert be passed? How and where will a client attach the client cert with message?My understanding is that this is a network layer security and client certificate will be authenticated on PI J2ee server at SSL protocol level..Is my understanding correct?)
6) We will also load client certificate generated for client onto J2EE server using Visual Admin and map it to PI user for authentication.
7) SAP web dispatcher terminates SSL and passes the SOAP message to PI (J2EE) along with client cert in a http header variable.
There is some conflicting SAP documents. some say that client cert can't be used for PI authentication if Web Dispatcher terminates SSL connection (http://help.sap.com/saphelp_nw04s/helpdata/en/ea/301e3e6217b40be10000000a114084/frameset.htm). There is some other documents that say that authentication using client cert is possible by having J2EE trusting Web Dispatcher and by passing client cert from Web Dispatcher to J2EE in a httpheader variable (http://help.sap.com/saphelp_erp2005/helpdata/en/ea/301e3e6217b40be10000000a114084/content.htm).
Now if client cert authentication is possible even if Web dispatcher terminates SSL, what cert do we need on J2EE, a cert from Web dispatcher or a client cert that's coming in from the client appication (the one that we created and provided to our third-party)?
If we install a cert from web dispatcher on J2EE then do we need a client cert on Web dispatcher instead of on J2EE? If so how and where do we map client cert to PI User?
I will really appreciate any advise on whether we are going down the right path and any pointers to my questions.
Thanks,
Saurabh

Hi,
May be below links will be helpful
Check the following links.. you will get the information all about the securities...
http://help.sap.com/saphelp_nw04/helpdata/en/f7/c2953fc405330ee10000000a114084/content.htm
Also read thru this link for message level security - https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/d024ca8e-e76e-2910-c183-8ea4ba681c51
Also find soeminformation in these links
http://help.sap.com/saphelp_nw2004s/helpdata/en/a8/882a40ce93185de10000000a1550b0/frameset.htm
/people/aparna.chaganti2/blog/2007/01/23/how-xml-encryption-can-be-done-using-web-services-security-in-sap-netweaver-xi
Step by step guide for SSL security
step by step guide to implement SSL
Please go through below link for referance (above information is from below link)
http://help.sap.com/saphelp_nw04/helpdata/en/14/ef2940cbf2195de10000000a1550b0/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/ff/7932e4e9c51c4fa596c69e21151c7d/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/13/4a3ad42ae78e4ca256861e078b4160/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/3a/7cddde33ff05cae10000000a128c20/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/0a/0a2e0fef6211d3a6510000e835363f/content.htm
General guide
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a09f3d8e-d478-2910-9eb8-caa6516dd7d9
Message level security
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/d024ca8e-e76e-2910-c183-8ea4ba681c51
Regarding message level you can encrypt the message using certificates.
For both of this basis team has to deploy the releavant certificates in XI ABAP Stack or Java stack.
Generally if the scenarios are intra company we dont use any transport level or message level security since the network is already secured.
Thanks
Swarup

How to Install & Configure Web Dispatcher

Hi techies,
How to install and configure SAP Webdisptacher in an existing BI System.
What are the parameters need to be set after installation like ports, memory , profile parameters etc., for webdispatcher.
I am new to this concept
Thx in advance.
Haroon Khavi.

Hi,
The webdisp does not need the SID of the system it is connecting to. The only parameter it needs is a "Unique Instance Number for SAP Web Dispatcher (SAPSYSTEM)".
You can check this with the following command:-
sapwebdisp -bootstrap
If you are installing the webdisp on a server that already has a SAP instance then you have to enter a unique number (not the SAP instance number). You can used any value from 0-99.
This parameter is used for shared memory allocation so should not be the same as the SAP instance or any other webdisp installed on the same server. Of course if there is only the webdisp on the server than any value from 0-99 can be used.
Hope this helps
Michael

Remote Connection to SAP with SAP Web Dispatcher

Dear Experts,
i have installed a SAP Router + SAP ECC 6.0 IDES + SAP Portal 7.0 + SAP Solution Manager 7.0. The remote connection works.
SAP Router is in a DMZ
SAP ECC 6.0 IDES + SAP Portal 7.0 + SAP Solution Manager 7.0 are in another network only for SAP Systems
Fo security reason, i would like to install a SAP Webdispatcher with the SAP Router's Server.
I already:
have extracted the icmadmin.sar file
have executed the sapwebdisp -bootstrap command
have started the web dispatcher with sapwebdisp pf=sapwebdisp.pfl
have activated /sap/public/icman and /sap/public/icf_info/* services inthe SAP Solution Manager
As the saprouttab file for the saprouter, i would like to establish the connection to SAP withe the SAP WebDispatcher.
My questions are:
What are the parameters i have to put in the sapwebdisp.pfl file?
Do i have to create the PERMFILE and the AUTHFILE?
Any example of profil file? (another than the SAP Library example)
Thank you very much for your help in advance.
Best regards.
Pascal Tran.
PS: Here is the sapwebdisp.pfl file
Profile generated by sapwebdisp bootstrap
unique instance number
SAPSYSTEM = 50
add default directory settings
DIR_EXECUTABLE = .
DIR_INSTANCE = .
Accessibility of Message Servers
rdisp/mshost = <Solution_Manager_hostanme>
rdisp/msserv = sapms<Solution_Manager_SID>
ms/http_port = 81<Solution_Manager_Instance_Number>
SAP Web Dispatcher Parameter
wdisp/auto_refresh = 120
wdisp/max_servers = 100
wdisp/shm_attach_mode = 6
configuration for default scenario (medium size)
icm/max_conn      = 500
icm/max_sockets   = 1024
icm/req_queue_len = 500
icm/min_threads   = 10
icm/max_threads   = 50
mpi/total_size_MB = 80
#maximum number of concurrent connections to one server
wdisp/HTTP/max_pooled_con = 500
wdisp/HTTPS/max_pooled_con = 500
SAP Web Dispatcher Ports
icm/server_port_0 = PROT=HTTP,PORT=8050
SAP Web Dispatcher Web Administration
icm/HTTP/admin_0 = PREFIX=/sap/wdisp/admin,DOCROOT=./admin,AUTHFILE=icmauth.txt
Hostname per default
icm/host_name_full = <SAP_Router_Hostname>

Hello,
The two important paramters are covered in your profile.
Accessibility of Message Servers
rdisp/mshost = <Solution_Manager_hostanme>
rdisp/msserv = sapms<Solution_Manager_SID>
ms/http_port = 81<Solution_Manager_Instance_Number>
And the port on which your webdispatcher listens from outside world.
icm/server_port_0 = PROT=HTTP,PORT=8050
For additional security you can use the https port also.
I dont think you need to maintain any other file manually.
I had configured web dispatcher but for 640 stack. It should be more or less the same.
An example file sapwebdisp.pfl
Profile generated by sapwebdisp bootstrap
unique instance number
SAPSYSTEM = 1
Accessibility of Message Servers
rdisp/mshost = <hostname>
ms/http_port = 8101
ms/https_port = 8005
SAP Web Dispatcher Parameter
wdisp/auto_refresh = 120
wdisp/max_servers = 100
wdisp/shm_attach_mode = 6
configuration for default scenario (medium size)
icm/max_conn      = 500
icm/max_sockets   = 1024
icm/req_queue_len = 500
icm/min_threads   = 10
icm/max_threads   = 50
mpi/total_size_MB = 80
#maximum number of concurrent connections to one server
wdisp/HTTP/max_pooled_con = 500
wdisp/HTTPS/max_pooled_con = 500
wdisp/shm_attach_mode = 6
SAP Web Dispatcher Ports
icm/server_port_0 = PROT=HTTPS,PORT=1443
icm/server_port_1 = PROT=HTTP,PORT=1081
icm/HTTPS/verify_client = 0
SAP Web Dispatcher Web Administration
icm/HTTP/admin_0 = PREFIX=/sap/wdisp/admin,DOCROOT=./admin
DIR_INSTANCE = C:\Secudir
ssl/ssl_lib = C:\Secudir\sapcrypto.dll
ssl/server_pse= C:\Secudir\SAPSSLS.pse
wdisp/ssl_cred = SAPSSLS.pse

SAP WEB DISPATCHER

Hi friends. I need to know if I can install the SAP WEB DISPATHCER in one Intel server with Linux? This configuration I'll need to configure in the HA and the DISPATCHER will running in the DMZ. Somebody can help me? Thanks for your cooperation.

Yes, please start with this note
Note 538405 - Composite SAP Note on the SAP Web Dispatcher
also
<a href="http://help.sap.com/saphelp_nw70/helpdata/en/42/5cfd3b0e59774ee10000000a114084/frameset.htm">SAP Web Dispatcher</a>

SAP Web Dispatcher SSL Error

We are having issues with our SSL connection to the SAP Web AS. Below is the error in the log files:
[Thr 472] =================================================
[Thr 472] = SSL Initialization on PC with Windows NT
[Thr 472] =   (700_REL,Jul 14 2008,mt,ascii,SAP_UC/size_t/void* = 8/32/32)
[Thr 472]   profile param "ssl/ssl_lib" = "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sapcrypto.dll"
           resulting Filename = "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sapcrypto.dll"
[Thr 472]   profile param "ssl/server_pse" = "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sec\<Our PSE>.pse"
           resulting Filename = "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sec\<Our PSE>.pse"
[Thr 472]   profile param "ssl/client_pse" = "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sec\SAPSSLC.PSE"
           resulting Filename = "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sec\SAPSSLC.PSE"
[Thr 472] =   found SAPCRYPTOLIB 5.5.5C pl24 (Jun 11 2008) MT-safe
[Thr 472] =   current UserID: NT AUTHORITY\SYSTEM
[Thr 472] =   found SECUDIR environment variable
[Thr 472] =   using SECUDIR=c:\program files\sap\sapwebdisp\
[Thr 472] *** ERROR =>   secudessl_Create_SSL_CTX(): PSE "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sec\<Our PSE>.pse" not found! [ssslsecu.c   1354]
[Thr 472] secudessl_Create_SSL_CTX: SSL_CTX_set_default_pse_by_name() failed --
secude_error 1824 (0x00000720) = "Wrong or Missing PIN for PSE"
[Thr 472] >> -
Begin of Secude-SSL Errorstack -
>>
[Thr 472] ERROR in SSL_CTX_set_default_pse_by_name: (1824/0x0720) Wrong or Missing PIN for PSE : "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sec\<Our PSE>.pse"
ERROR in ssl_set_pse: (1824/0x0720) Wrong or Missing PIN for PSE : "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sec\<Our PSE>.pse"
ERROR in af_open: (1824/0x0720) Wrong or Missing PIN for PSE : "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sec\<Our PSE>.pse"
ERROR in secsw_open: (1824/0x0720) Wrong or Missing PIN for PSE : "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sec\<Our PSE>.pse"
ERROR in sec_parse_PSEInfo_cont: (1824/0x0720) Wrong or Missing PIN for PSE : "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sec\<Our PSE>.pse"
[Thr 472] << -
End of Secude-SSL Errorstack -
[Thr 472] *** ERROR => SapISSLAddCredential(): Error SSSLERR_PSE_ERROR trying to create SERVER Credential
        for "C:\Program Files\SAP\SAPWebDisp\DEV\<Our Site>\sec\<OurPSE>.pse" [ssslxxi.c    2278]
[Thr 472] Tue Mar 31 13:30:06 2009
[Thr 472] *** ERROR => Initialization of SSL library failed -- NO SSL available!
[Thr 472] =================================================
[Thr 472] <<- ERROR: SapSSLInit(read_profile=1)==SSSLERR_PSE_ERROR
[Thr 472] *** ERROR => IcmAddService: SapSSLInit (rc=-40): SSSLERR_PSE_ERROR [icxxserv.c   319]
[Thr 3744] IcmCreateWorkerThreads: created worker thread 0
[Thr 2952] *** ERROR => IcmConnClientRqCreate: No service for protocol HTTPS started [icxxconn.c   2701]
[Thr 2952] *** ERROR => IcmConnClientRqCreate() failed (rc=-1) [icrxx.c      5234]
[Thr 2952] *** ERROR => Could not connect to SAP Message Server at onebase. URL=/msgserver/text/logon?version=1.2 [icrxx.c      2591]
[Thr 2952] *** ERROR => rc=-1, HTTP response code: 0 [icrxx.c      2592]
[Thr 2952] *** ERROR => see also OSS note 552286 [icrxx.c      2593]
[Thr 3744] IcmCreateWorkerThreads: created worker thread 1
[Thr 3744] IcmCreateWorkerThreads: created worker thread 2
[Thr 3744] IcmCreateWorkerThreads: created worker thread 3
[Thr 3744] IcmCreateWorkerThreads: created worker thread 4
[Thr 3292] IcmWatchDogThread: watchdog started
I've already used sapgenpse seclogin -p <PSE File> -x <PIN> to create a pin. I've also gone and deleted the old pin that used to be there and created a new one.
Also I noticed it says "Beware: changing a PIN of a PSE will not auto-update the SSO-credential
Beware: adding a new credential will not auto-update an existing credential"
So once you change it how do you update it? Do you need to reboot the Web Dispatcher or do you just need to restarted the service?

I am also facing same issue.
I have added credentials also and successfully done.
Here attaching trace file. Please suggest
trc file: "dev_webdisp", trc level: 1, release: "720"
sysno 00
sid WD1
systemid 390 (AMD/Intel x86_64 with Linux)
relno 7200
patchlevel 0
patchno 68
intno 20020600
make multithreaded, ASCII, 64 bit, optimized
profile /usr/sap/WD1/profile/WD1_W00_sapportal
pid 26732
[Thr 139840314074976] Thu Oct 31 13:54:15 2013
[Thr 139840314074976] *** WARNING => The maximum number of sockets supported on this host is 1020.
This is less than the number of sockets configured in parameter icm/max_sockets (8192) [icxxrout_mt. 3417]
[Thr 139840314074976] started security log to file ./dev_icm_sec
[Thr 139840314074976] SigISetDefaultAction : default handling for signal SIGCHLD
[Thr 139840314074976] SAP Web Dispatcher running on: sapportal.abrajoman.com
[Thr 139840314074976] MtxInit: 30001 0 2
[Thr 139840314074976] ***LOG IM1=> IcmInit, Startup (SAP Web Dispatcher&sapportal.abrajoman.com&26732&) [icxxrout_mt. 1914]
[Thr 139840314074976] IcmInit: listening to admin port: 65000
[Thr 139840314074976] MPI: dynamic quotas disabled.
[Thr 139840314074976] MPI init: pipes=4000 buffers=1279 reserved=383 quota=10%
[Thr 139840314074976] CCMS: SemInMgt: Semaphore Management initialized by AlAttachShm_Ext.
[Thr 139840314074976] CCMS: SemInit: Semaphore 38 initialized by AlAttachShm_Ext.
[Thr 139840314074976] CCMS: AlInitGlobals : alert/use_sema_lock = TRUE.
[Thr 139840314074976] IcrCoreInitSessionTable: Session table initialized
[Thr 139840167098112] HttpExtractArchive: files from archive /usr/sap/WD1/SYS/exe/run/wdispadmin.SAR in directory /usr/sap/WD1/W00/data/icmandir are up to date
[Thr 139840167098112] HttpISubHandlerAdd: Added handler HttpAdminHandler(0x7f2f0c000e70), slot=0, flags=36869) for /sap/admin, active: 1, table 0x7f2f0c000a10
[Thr 139840167098112] HttpISubHandlerAdd: Added handler HttpModHandler(0x7f2f0c0012e0), slot=1, flags=12293) for /, active: 1, table 0x7f2f0c000a10
[Thr 139840167098112] CsiInit(): Initializing the Content Scan Interface
[Thr 139840167098112] AMD/Intel x86_64 with Linux (mt,ascii,SAP_CHAR/size_t/void* = 8/64/64)
[Thr 139840167098112] CsiInit(): CSA_LIB = "/usr/sap/WD1/SYS/exe/run/libsapcsa.so"
[Thr 139840167098112] HttpISubHandlerAdd: Added handler HttpAuthHandler(0x7f2f0c001440), slot=2, flags=12293) for /, active: 1, table 0x7f2f0c000a10
[Thr 139840167098112] HttpISubHandlerAdd: Added handler HttpWebDispHandler(0x7f2f0c008340), slot=3, flags=1060869) for /, active: 1, table 0x7f2f0c000a10
[Thr 139840167098112] Started service PORT=8100,PROT=HTTP,TIMEOUT=60,PROCTIMEOUT=60
[Thr 139840167098112] =================================================
[Thr 139840167098112] = SSL Initialization platform tag=(linuxx86_64_gcc41)
[Thr 139840167098112] = (720_REL,Oct 15 2010,mt,ascii,SAP_UC/size_t/void* = 8/64/64)
[Thr 139840167098112] profile param "ssl/ssl_lib" = "/usr/sap/WD1/exe/libsapcrypto.so"
[Thr 139840167098112] resulting Filename = "/usr/sap/WD1/exe/libsapcrypto.so"
[Thr 139840167098112] = found SAPCRYPTOLIB 5.5.5C pl36 (Jul 3 2013) MT,AESNI,NB
[Thr 139840167098112] = current UserID: "wd1adm", env-var USER="wd1adm"
[Thr 139840167098112] = using SECUDIR=/usr/sap/WD1/W00/sec
[Thr 139840167098112] profile param "ssl/server_pse" = "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840167098112] resulting Filename = "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840167098112] *** ERROR => secudessl_Create_SSL_CTX(): PSE "/usr/sap/WD1/W00/sec/epssl.pse": unable to use! [ssslsecu_mt. 1735]
[Thr 139840167098112] secudessl_Create_SSL_CTX: SSL_CTX_set_default_pse_by_name() failed --
[Thr 139840167098112] secude_error 1824 (0x00000720) = "Wrong or Missing PIN for PSE"
[Thr 139840167098112] >> ---------- Begin of Secude-SSL Errorstack ---------- >>
[Thr 139840167098112] ERROR in SSL_CTX_set_default_pse_by_name: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840167098112] ERROR in ssl_set_pse: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840167098112] ERROR in af_open: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840167098112] ERROR in secsw_open: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840167098112] ERROR in sec_parse_PSEInfo_cont: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840167098112] << ---------- End of Secude-SSL Errorstack ----------
[Thr 139840167098112] *** ERROR => SapISSLAddCredential(): Error SSSLERR_PSE_ERROR trying to create SERVER Credential
for "/usr/sap/WD1/W00/sec/epssl.pse" [ssslxxi_mt.c 2324]
[Thr 139840167098112] *** ERROR => Initialization of SSL library failed -- NO SSL available!
[Thr 139840167098112] =================================================
[Thr 139840167098112]
[Thr 139840167098112] <<- ERROR: SapSSLInit(read_profile=1)==SSSLERR_PSE_ERROR
[Thr 139840167098112] *** ERROR => IcmServInitSSL: SapSSLInit (rc=-40): SSSLERR_PSE_ERROR [icxxserv_mt. 251]
[Thr 139840167098112] *** WARNING => Could not start service (rc=-14) PORT=8300,PROT=HTTPS,TIMEOUT=60,PROCTIMEOUT=900,VCLIENT=0 [icxxserv_mt. 651]
[Thr 139840314074976] SigISetDefaultAction : default handling for signal SIGCHLD
[Thr 139840314074976] IcmCreateWorkerThreads: created worker thread 0
[Thr 139840314074976] IcmCreateWorkerThreads: created worker thread 1
[Thr 139840314074976] IcmCreateWorkerThreads: created worker thread 2
[Thr 139840314074976] IcmCreateWorkerThreads: created worker thread 3
[Thr 139840314074976] IcmCreateWorkerThreads: created worker thread 4
[Thr 139840314074976] IcmCreateWorkerThreads: created worker thread 5
[Thr 139840314074976] IcmCreateWorkerThreads: created worker thread 6
[Thr 139840314074976] IcmCreateWorkerThreads: created worker thread 7
[Thr 139840314074976] IcmCreateWorkerThreads: created worker thread 8
[Thr 139840314074976] IcmCreateWorkerThreads: created worker thread 9
[Thr 139840167098112] IcmWatchDogThread: watchdog started
[Thr 139840148838144] Thu Oct 31 13:54:36 2013
[Thr 139840148838144] =================================================
[Thr 139840148838144] = SSL Initialization platform tag=(linuxx86_64_gcc41)
[Thr 139840148838144] = (720_REL,Oct 15 2010,mt,ascii,SAP_UC/size_t/void* = 8/64/64)
[Thr 139840148838144] profile param "ssl/ssl_lib" = "/usr/sap/WD1/exe/libsapcrypto.so"
[Thr 139840148838144] resulting Filename = "/usr/sap/WD1/exe/libsapcrypto.so"
[Thr 139840148838144] = found SAPCRYPTOLIB 5.5.5C pl36 (Jul 3 2013) MT,AESNI,NB
[Thr 139840148838144] = current UserID: "wd1adm", env-var USER="wd1adm"
[Thr 139840148838144] = using SECUDIR=/usr/sap/WD1/W00/sec
[Thr 139840148838144] profile param "ssl/server_pse" = "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840148838144] resulting Filename = "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840148838144] *** ERROR => secudessl_Create_SSL_CTX(): PSE "/usr/sap/WD1/W00/sec/epssl.pse": unable to use! [ssslsecu_mt. 1735]
[Thr 139840148838144] secudessl_Create_SSL_CTX: SSL_CTX_set_default_pse_by_name() failed --
[Thr 139840148838144] secude_error 1824 (0x00000720) = "Wrong or Missing PIN for PSE"
[Thr 139840148838144] >> ---------- Begin of Secude-SSL Errorstack ---------- >>
[Thr 139840148838144] ERROR in SSL_CTX_set_default_pse_by_name: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840148838144] ERROR in ssl_set_pse: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840148838144] ERROR in af_open: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840148838144] ERROR in secsw_open: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840148838144] ERROR in sec_parse_PSEInfo_cont: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840148838144] << ---------- End of Secude-SSL Errorstack ----------
[Thr 139840148838144] *** ERROR => SapISSLAddCredential(): Error SSSLERR_PSE_ERROR trying to create SERVER Credential
for "/usr/sap/WD1/W00/sec/epssl.pse" [ssslxxi_mt.c 2324]
[Thr 139840148838144] *** ERROR => Initialization of SSL library failed -- NO SSL available!
[Thr 139840148838144] =================================================
[Thr 139840148838144]
[Thr 139840148838144] <<- ERROR: SapSSLInit(read_profile=1)==SSSLERR_PSE_ERROR
[Thr 139840148838144] *** ERROR => IcmServInitSSL: SapSSLInit (rc=-40): SSSLERR_PSE_ERROR [icxxserv_mt. 251]
[Thr 139840148838144] *** WARNING => Could not reactivate service (rc=-14) PORT=8300,PROT=HTTPS,TIMEOUT=60,PROCTIMEOUT=900,VCLIENT=0 [icxxserv_mt. 1550]
[Thr 139840148838144] *** ERROR => ICP_icm_mod_service: ModService(7) failed for 8300, HTTPS(rc=-14) [icrxxadmin_m 5519]
[Thr 139840151480064] Fri Nov 1 10:54:13 2013
[Thr 139840151480064] =================================================
[Thr 139840151480064] = SSL Initialization platform tag=(linuxx86_64_gcc41)
[Thr 139840151480064] = (720_REL,Oct 15 2010,mt,ascii,SAP_UC/size_t/void* = 8/64/64)
[Thr 139840151480064] profile param "ssl/ssl_lib" = "/usr/sap/WD1/exe/libsapcrypto.so"
[Thr 139840151480064] resulting Filename = "/usr/sap/WD1/exe/libsapcrypto.so"
[Thr 139840151480064] = found SAPCRYPTOLIB 5.5.5C pl36 (Jul 3 2013) MT,AESNI,NB
[Thr 139840151480064] = current UserID: "wd1adm", env-var USER="wd1adm"
[Thr 139840151480064] = using SECUDIR=/usr/sap/WD1/W00/sec
[Thr 139840151480064] profile param "ssl/server_pse" = "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840151480064] resulting Filename = "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840151480064] *** ERROR => secudessl_Create_SSL_CTX(): PSE "/usr/sap/WD1/W00/sec/epssl.pse": unable to use! [ssslsecu_mt. 1735]
[Thr 139840151480064] secudessl_Create_SSL_CTX: SSL_CTX_set_default_pse_by_name() failed --
[Thr 139840151480064] secude_error 1824 (0x00000720) = "Wrong or Missing PIN for PSE"
[Thr 139840151480064] >> ---------- Begin of Secude-SSL Errorstack ---------- >>
[Thr 139840151480064] ERROR in SSL_CTX_set_default_pse_by_name: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840151480064] ERROR in ssl_set_pse: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840151480064] ERROR in af_open: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840151480064] ERROR in secsw_open: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840151480064] ERROR in sec_parse_PSEInfo_cont: (1824/0x0720) Wrong or Missing PIN for PSE : "/usr/sap/WD1/W00/sec/epssl.pse"
[Thr 139840151480064] << ---------- End of Secude-SSL Errorstack ----------
[Thr 139840151480064] *** ERROR => SapISSLAddCredential(): Error SSSLERR_PSE_ERROR trying to create SERVER Credential
for "/usr/sap/WD1/W00/sec/epssl.pse" [ssslxxi_mt.c 2324]
[Thr 139840151480064] *** ERROR => Initialization of SSL library failed -- NO SSL available!
[Thr 139840151480064] =================================================
[Thr 139840151480064]
[Thr 139840151480064] <<- ERROR: SapSSLInit(read_profile=1)==SSSLERR_PSE_ERROR
[Thr 139840151480064] *** ERROR => IcmServInitSSL: SapSSLInit (rc=-40): SSSLERR_PSE_ERROR [icxxserv_mt. 251]
[Thr 139840151480064] *** WARNING => Could not reactivate service (rc=-14) PORT=8300,PROT=HTTPS,TIMEOUT=60,PROCTIMEOUT=900,VCLIENT=0 [icxxserv_mt. 1550]
[Thr 139840151480064] *** ERROR => ICP_icm_mod_service: ModService(7) failed for 8300, HTTPS(rc=-14) [icrxxadmin_m 5519]
Trace File
   (11768bytes)
Thanks,
Kundan

Unable to install SAP webAS on Windows 2003

Hi Everyone , I am trying to install SAP WebAS Java 6.4. We use an Oracle Database and i want to deploy
our web apps on the SAP WebAS . I get this error during installation :
ERROR 2004-11-09 15:00:39
CJS-00081 Assertion failed: in
function sapdb_sql_query(db_nm, sql_s, db_node) {
var ret_s = "";
var sdbInst = new sdbInstance();
sdbInst.dbName = db_nm;
sdbInst.dbHost = (db_node == undefined) ? installer.getHostName() : db_node;
var r_arr = sdb_sql_query(sql_s, sdbInst);
ASSERT(arguments.callee, r_arr != undefined, "ERROR EXECUTING DBMCLI COMMAND!");
if (r_arr[0] == "false") {
var err_msg = "ERROR EXECUTING SQL QUERY: ";
for (var i_cnt = 1; i_cnt < r_arr.length; i_cnt++) {
err_msg = err_msg + r_arr[i_cnt];
ASSERT(arguments.callee, false, err_msg);
} else {
end_l = new RegExp("END");
for (i_cnt = 0; i_cnt < r_arr.length; i_cnt++) {
if (end_l.test(r_arr[i_cnt])) {
ret_s = r_arr[i_cnt + 1];
break;
return ret_s;
ERROR EXECUTING SQL QUERY: OKERR-24988,ERR_SQL: sql error-5015,Missing keyword:USERGROUP,TIMEOUT,STANDARD,RESOURCE,REPLICATION,NOT,LIKE,EXCLUSIVE,DBA,COSTWARNING,COSTLIMIT,CACHELIMIT
How do i get over this problem ?
Thanks
Ravi

Hello Ravi,
this problem probably occurred when a SQL user was trying to be created using a password with special characters, but failed.
Could you please copy the last couple of lines of the protocol named 'XCMDOUT.log' into this thread?
Regards,
Roland

Reverse Proxy - Apache vs SAP Web Dispatcher

Hi,
my config consists in a portal (EP7.0 - DB/CI + AS) and an ECC system (ECC 6.0 - DB/CI + AS).
Web developments are based on Abap Web Dynpro and are also located on ECC.
To ensure load balancing there are 2 web dispatchers : one on EP DB/CI, one on ECC DB/CI.
Those 2 systems are located in intranet. Intranet access are realized via http.
Moreover I need to open this solution to internet. I need a component to filter access in DMZ and ensure reverse proxy + https functions.
Technical target chain links are depicted below.
internet access : browser (https) -
> (https) reverse proxy in DMZ (http) -
> IS (Portal/ECC)
intranet access : browser (http) -
> IS (portal/ECC)
At the moment two application gateway solutions have been identified :
Apache (MOD_PROXY + MOD_HTTPS) - My configuration is based on Linux
SAP Web Dispatcher ("cascading" implementation as described in OSS note 740234)
I'm looking for PROs and CONs of those 2 solutions and I'm also seeking for the impact of ensuring https encryption/decryption at the application gateway level ("a priori" this usage is not transparent in term of server sizing - CPU/memory, do I require to implement an SSL accelerator ?).
Regards.
Frederic.

Hi,
PRO Webdispatcher:
- Supports SAP Java + ABAP
- Loadbalancing of SAP applications (stateful)
- Supports load balancing (saplb_* cookie)
- Free of costs
- easy to set up (up & running in 2 minutes)
- Supports HA solutions out-of-the-box (process HA)
- Filter + Rules to modify the requests
CONS Webdispatcher
- not a full reverse proxy
- Limited functionality
- one more server/solution (normaly, a company already does have a reverse proxy solution in place)
- limited user base (only SAP customers)
PRO Apache
- free
- widly in use
- full reverse proxy
- allows more complex filtering / rewriting
- can be used for more web solutions, reuse of existing apache reverse proxy
CONS Apache
- does not support SAP load balancing (connection to the message server port for load distribution)
- can be more complex to set up
- SAP specific technology / problems are more harder to fix (ABAP, Stateful connections, sap_lb*)
Short: both will server well as a reverse proxy.
Rule of thumb: If you go for Apache or Web Dispatcher should mainly depend on you current IT landscape. If you already do have an apache in use, use Apache. You already have the people / knowledge, try to foster it .
If you start from scratch and have SAP Logon Groups or many WebDynpro ABAP applications, go for the Web Dispatcher.
br,
Tobias

Issue in Installing Sap Web Dispatcher

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