User authantication error when we try to connect to a backend system

Hi,
We have a stand alone webdynpro application where in we are calling some rfc function modules. We have imported the models using jco connection in a development system by providing the system/user info. When we deploy and run the application in the development system the application works fine. But when we deploy the application in different test systems it fails with user authantication error while triggering those rfc function modules. Can any one help us how we can identify the problem?
We basically dont know with what system/user information its trying to connect to back end.
Kind Regards,
Prakash

Hi Prakash,
THere can be Multiple reasons for this problem
1.if you are using JCO connections with UID/Password authomtication,make sure that Connection is working properly by testing it in Web dynpro console administrator.
2.if you are using SSO authontication mechanism in your JCO Connections,make sure that you have UID in the back end system(BAckend Quality system) and your portal system is connected to Backend quality sytems using SSO.
hope this helps
With Regars
Naidu

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Here is how to solve the problem and gain access. First you should
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server root. The directory is named "admin-serv" in 3.x servers.
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If you're setting up hostname restrictions, you'll need to make sure that
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(separate the subsrings with a pipe character, like
"(host1|host2|host3)"); the substrings must be enclosed in parentheses, as shown.
If you're setting up hostname restrictions, you'll need to make sure that
your DNS can resolve those hostnames -- it's generally safer to stick
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"Configure Administration Server" from the bottom of the Server Manager
page, then enter hostname and IP address restrictions. If you want
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(separate the substrings with a pipe character, like
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restart your admin server.
</UL>
If you still find yourself getting an "Unauthorized host" error message,
you can use the above steps to open up access and try different
settings.

"Unauthorized Host" error when you try to connect to the admin server

If you see this error message when you try to connect to a Netscape
administration server:
Internal Error
The administration server was unable to fulfill your request.
Reason: Unauthorized host
--------------------------
Here is how to solve the problem and gain access. First you should
temporarily open access to all sites, and then once you make sure that
this lets you get into your administration server, try again to set up
the domain name or IP address access restrictions you want.
For all 2.x/3.x Netscape servers on Windows NT and Unix, or for Commerce and
Communications servers (1.x) on Unix:
<OL>
<LI>Open the "ns-admin.conf" file with a text editor. You can
find this file in the "admserv" directory under your Netscape
server root. The directory is named "admin-serv" in 3.x servers.
<LI>Delete the "Hosts" and "Addresses" lines you see there (either one
of them might not be present). Don't confuse the "Addresses" line,
which you should delete, with the "Address" line, which you should NOT
delete.
<LI>Save the file, then restart your administration server (on Unix run
"stop-admin" then "start-admin"; on Windows NT go into the Services
control panel and stop/start the "Netscape Admin Server" service).
</OL>
For Commerce Server or Communications Server (1.x) on Windows NT:
<OL>
<LI>Go into the registry editor. On Windows NT 4.0, run the command
"regedit". On Windows 3.51, run the command
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you see when you connect to the admin server), then click on "Superuser Access
Control" and enter hostname and IP address restrictions. If you want
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If you're setting up hostname restrictions, you'll need to make sure that
your DNS can resolve those hostnames -- it's generally safer to stick
with IP address restrictions. When you're finished configuring this,
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If you're setting up hostname restrictions, you'll need to make sure that
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with IP address restrictions. When you're finished configuring this,
click "OK" then restart your admin server.
<LI>For the administration server on a 1.x server installation, select
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DNS can resolve those hostnames -- it's generally safer to stick with IP address
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restart your admin server.
</UL>
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you can use the above steps to open up access and try different
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User authantication error when we try to connect to a backend system

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