Problem Description: Error: "
RPCserver is unavailable" when doing remote execution of automated scripts after installing
Windows XP SP2
The user receives the following error message when executing a automated script. remotely after installing Windows XP SP2:
"The
RPCserver is unavailable."
Executing the script. locally works correctly.
Diagnosis: Security changes in Windows XP SP2 have blocked the remote agent of the testing tool from being launched. This caused the failure of the automated script. execution.
Note: Windows XP SP2 is supported with TestDirector 8.0 SP2 and TestDirector for Quality Center 8.2 only.
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Solution: Change the DCOM permissions on the Windows XP SP2 client to allow for remote execution
Notes:
The security changes suggested below should be applied by your System Administrator. Please contact Microsoft Support if you have questions regarding changes in DCOM securities caused by installing Windows XP SP2.
If you disable the firewall installed with Windows XP SP2, you do not need to apply the steps in Part II below.
The following is the manual process for openning the firewall ports and modifying the DCOM properties for WR,
QTP, BPT, System
Test, and VAPI-XP.
Part I:
Add both machines into the same domain. For the domain users logged into both machines, add these domain users to the Local Administrators group on the QTP/WR machine. This is required for Windows to authenticate the remote user executing the tests against the DCOM objects.
Part II:
On the Testing Tool client machine configure Windows Firewall to allow Port 135 for DCOM:
1. Select Start -> Control Panel -> Windows Firewall.
2. Navigate to the Exceptions tab.
3. Configure the Remote Agent to be allowed under "Programs and Services." Configuration should be done for each testing tools as given below:
WinRunner Remote Agent (path:
:\Program Files\Common Files\Mercury Interactive\WR_Remoter\wrrmtsrv.exe)
QuickTest Professional Remote Agent (path::\Program Files\Mercury Interactive\QuickTest Professional\bin\AQTRmtAgent.exe)
Execution Agent for Business Process Testing (path::\Program Files\Common Files\Mercury Interactive\TD2000_80\bp_exec_agent.exe)
4. Click onand add the DCOM TCP port 135 to the Exceptions list.
Note: The WR remote agent is a DCOM object and requires port 135 to work. The list of "Port Assignments for Commonly-Used Services" is provided in the URL below:
http://www.microsoft.com/resources/documentation/Windows/2000/server/reskit/en-us/Default.asp?url=/resources/documentation/windows/2000/server/reskit/en-us/cnet/cnfc_por_SIMW.asp
Part III:
Modify DCOM Security Properties:
1. Select Start -> Run and enter dcomcnfg.
2. Navigate to Console Root -> Component Services -> Computers -> My Computer.
Note: If Windows Security Alert dialog window appears, click onor.
3. Right-click on My Computers and select "Properties."
4. Navigate to the Default Properties tab.
5. Make sure the Default Impersonation Level is "Identify."
6. Click.
7. Navigate to the Defualt COM Security tab.
8. Under Access Permissions, click on. The Access Permission dialog window appears.
9. Click on. The Select Users or Groups dialog windows appear.
10. Click on.
11. Click on.
12. Add the following groups and users from the local machine (below is an example screenshot):
Administrator
Administrators
Authenticated User
Anonymous Logon
Everyone
Interactive
Network
System
13. Click.
14. Add the following groups and users from the domain:
15. Click.
16. Give "Local Access" and "Remote Access" permissions to the groups and users.
17. Click.
18. Under Access Permissions, repeat steps 9-17 for.
19. Under Launch and Activation Permissions, click on. The Launch Permission dialog window appears.
20. Repeat steps 9-15.
21. Enable "Local Launch," "Remote Launch," "Local Activation," and "Remote Activation" permissions to the groups and users.
22. Click.
23. Repeat steps 20-22 for.
Part IV: (for QTP only)
1. While still in the Component Services window, navigate to Console Root -> Component Services -> Computers -> My Computer -> DCOM Config.
2. Look for the following.
AQTRmtAgent
QuickTest Professional Automation
TlpRmtServer
3. For each of these DCOM applications, right click and select.
4. Under the Identity tab, select. This will allow the DCOM application to authenticate the process against the logged in Windows user and run the process in that security context.
5. Next, go to the Security tab.
6. For both theand, select
