RPC across domains - "The RPC server is unavailable. (Exception from

  • Thread starter Thread starter terry@foldingspace.net
  • Start date Start date
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terry@foldingspace.net

Guest
Hi,

I'm having an issue using WMI to stop/start a service.

I have two domains, domain1 and domain2, domain1 is where the user
account and the Desktop I'm currently using is located. Domain2 is
where the target Server is located.

The Desktop PC in domain1 is using Windows XP Pro SP2, the Server PC
in domain2 is using Windows Server 2003 SP2.

There is a two way trust setup between domain1 and domain2.

The user account in domain1 is a member of the Administrators group in
Domain2 and is also a local administrator on the Server PC.

On the Desktop in domain1 I'm running a powershell script that
retrieves the WMI object for a service and then attempts to stop it:

# Get IIS Service
$W3service = get-wmiobject win32_service -computername
$RemoteWebServer -filter "name='W3SVC'";

# stop the service.
$W3service.StopService();

but it gives us an error:

Exception retrieving member "StopService": "The RPC server is
unavailable. (Exception from HRESULT: 0x800706BA)"
At line:1 char:16
+ $W3.StopService( <<<< )

If this script is run from a PC in domain2 whilst logged on as the
user from domain1 it works fine.

We've checked that all firewalls are off and restarted both the
Desktop and Server after applying all permissions.

As a workaround we have switched to using:

sc \\servername stop servicename

Could anyone give us an insight into why this is happening?
Any clues or comments would be greatly appreciated :)

AndyJ
 
Re: RPC across domains - "The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)"

Re: RPC across domains - "The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)"

In news:3b160b47-2c15-47c2-b45e-6281202c6781@s8g2000prg.googlegroups.com,
terry@foldingspace.net <terry@foldingspace.net> typed:
> Hi,
>
> I'm having an issue using WMI to stop/start a service.
>
> I have two domains, domain1 and domain2, domain1 is where the user
> account and the Desktop I'm currently using is located. Domain2 is
> where the target Server is located.
>
> The Desktop PC in domain1 is using Windows XP Pro SP2, the Server PC
> in domain2 is using Windows Server 2003 SP2.
>
> There is a two way trust setup between domain1 and domain2.
>
> The user account in domain1 is a member of the Administrators group in
> Domain2 and is also a local administrator on the Server PC.
>
> On the Desktop in domain1 I'm running a powershell script that
> retrieves the WMI object for a service and then attempts to stop it:
>
> # Get IIS Service
> $W3service = get-wmiobject win32_service -computername
> $RemoteWebServer -filter "name='W3SVC'";
>
> # stop the service.
> $W3service.StopService();
>
> but it gives us an error:
>
> Exception retrieving member "StopService": "The RPC server is
> unavailable. (Exception from HRESULT: 0x800706BA)"
> At line:1 char:16
> + $W3.StopService( <<<< )
>
> If this script is run from a PC in domain2 whilst logged on as the
> user from domain1 it works fine.
>
> We've checked that all firewalls are off and restarted both the
> Desktop and Server after applying all permissions.
>
> As a workaround we have switched to using:
>
> sc \\servername stop servicename
>
> Could anyone give us an insight into why this is happening?
> Any clues or comments would be greatly appreciated :)
>
> AndyJ

I'm not much of a scripter, but I can tell you an "RPC service not
available" error usually means it can't resolve the name in DNS. I believe
if you specify by single computer name, as I believe I understand the
script, it may be using DNS to resolve it by normal devolution process,
which means it's using the machine's suffix to resolve it. How is DNS setup?
If these are two AD domains in different forests, you would also want to
configure conditional forwarding or hosts secondaries of each other. Then
try it again by using the machine's FQDN.


--
Regards,
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT,
MVP Microsoft MVP - Directory Services
Microsoft Certified Trainer

For urgent issues, you may want to contact Microsoft PSS directly. Please
check http://support.microsoft.com for regional support phone numbers.

Infinite Diversities in Infinite Combinations
 
Re: RPC across domains - "The RPC server is unavailable. (Exception

Re: RPC across domains - "The RPC server is unavailable. (Exception

On Mar 14, 4:54 am, "Ace Fekay [MVP]" <PleaseAs...@SomeDomain.com>
wrote:
> Innews:3b160b47-2c15-47c2-b45e-6281202c6781@s8g2000prg.googlegroups.com,
> te...@foldingspace.net <te...@foldingspace.net> typed:
>
>
>
>
>
> > Hi,
>
> > I'm having an issue using WMI to stop/start a service.
>
> > I have two domains, domain1 and domain2, domain1 is where the user
> > account and the Desktop I'm currently using is located. Domain2 is
> > where the target Server is located.
>
> > The Desktop PC in domain1 is using Windows XP Pro SP2, the Server PC
> > in domain2 is using Windows Server 2003 SP2.
>
> > There is a two way trust setup between domain1 and domain2.
>
> > The user account in domain1 is a member of the Administrators group in
> > Domain2 and is also a local administrator on the Server PC.
>
> > On the Desktop in domain1 I'm running a powershell script that
> > retrieves the WMI object for a service and then attempts to stop it:
>
> > # Get IIS Service
> > $W3service = get-wmiobject win32_service -computername
> > $RemoteWebServer -filter "name='W3SVC'";
>
> > # stop the service.
> > $W3service.StopService();
>
> > but it gives us an error:
>
> > Exception retrieving member "StopService": "The RPC server is
> > unavailable. (Exception from HRESULT: 0x800706BA)"
> > At line:1 char:16
> > + $W3.StopService( <<<< )
>
> > If this script is run from a PC in domain2 whilst logged on as the
> > user from domain1 it works fine.
>
> > We've checked that all firewalls are off and restarted both the
> > Desktop and Server after applying all permissions.
>
> > As a workaround we have switched to using:
>
> > sc \\servername stop servicename
>
> > Could anyone give us an insight into why this is happening?
> > Any clues or comments would be greatly appreciated :)
>
> > AndyJ
>
> I'm not much of a scripter, but I can tell you an "RPC service not
> available" error usually means it can't resolve the name in DNS. I believe
> if you specify by single computer name, as I believe I understand the
> script, it may be using DNS to resolve it by normal devolution process,
> which means it's using the machine's suffix to resolve it. How is DNS setup?
> If these are two AD domains in different forests, you would also want to
> configure conditional forwarding or hosts secondaries of each other. Then
> try it again by using the machine's FQDN.
>
> --
> Regards,
> Ace
>
> This posting is provided "AS-IS" with no warranties or guarantees and
> confers no rights.
>
> Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT,
> MVP Microsoft MVP - Directory Services
> Microsoft Certified Trainer
>
> For urgent issues, you may want to contact Microsoft PSS directly. Please
> checkhttp://support.microsoft.comfor regional support phone numbers.
>
> Infinite Diversities in Infinite Combinations- Hide quoted text -
>
> - Show quoted text -

Thanks for the reply :)

We're using the FQDN "MachineName.Domain2.local" and that works fine,
it can be pinged and using the SC command also works without problem.
We have configured the DNS server in each domain with secondary zones.
 
Re: RPC across domains - "The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)"

Re: RPC across domains - "The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)"

In news:9c2e9e25-89e2-48cf-86ca-22f9d876934c@t54g2000hsg.googlegroups.com,
terry@foldingspace.net <terry@foldingspace.net> typed:

> Thanks for the reply :)
>
> We're using the FQDN "MachineName.Domain2.local" and that works fine,
> it can be pinged and using the SC command also works without problem.
> We have configured the DNS server in each domain with secondary zones.

Sounds great. :-)

Ace
 
Re: RPC across domains - "The RPC server is unavailable. (Exception

Re: RPC across domains - "The RPC server is unavailable. (Exception

On Mar 14, 11:37 am, "Ace Fekay [MVP]" <PleaseAs...@SomeDomain.com>
wrote:
> Innews:9c2e9e25-89e2-48cf-86ca-22f9d876934c@t54g2000hsg.googlegroups.com,
> te...@foldingspace.net <te...@foldingspace.net> typed:
>
> > Thanks for the reply :)
>
> > We're using the FQDN "MachineName.Domain2.local" and that works fine,
> > it can be pinged and using the SC command also works without problem.
> > We have configured the DNS server in each domain with secondary zones.
>
> Sounds great. :-)
>
> Ace

Ahhhh I didn't explain very clearly ;)

That was all done and setup previously and the issue still remains,
the SC command works and we are now using that route but going via WMI
we still get the RPC error message.

It's why the WMI/RPC is failing that I'd like to find out.
 
Re: RPC across domains - "The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)"

Re: RPC across domains - "The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)"

In news:4b27f7b5-afe1-4c93-9f2d-d08f8562db41@s19g2000prg.googlegroups.com,
terry@foldingspace.net <terry@foldingspace.net> typed:

> Ahhhh I didn't explain very clearly ;)
>
> That was all done and setup previously and the issue still remains,
> the SC command works and we are now using that route but going via WMI
> we still get the RPC error message.
>
> It's why the WMI/RPC is failing that I'd like to find out.

Sorry about that. Thought you meant the FQDN worked and didn't try it
before.

WMI/RPC failures. If not DNS, then I would imagine if RPC permissions is not
enabled, incorrect DCOM permissions for the account, local firewall, etc,
may be the cause.

See if the following help:


RPC Server Unavailable when auditing machines running Windows 2003 SP1 or XP
SP2
http://www.microforge.net/kb/39

Topic: WMI Can't Connect - RPC server unavailable
http://www.systemtools.com/board/Forum13/HTML/000023.html


WMI : The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)
(scroll to bottom past the ads):
http://www.experts-exchange.com/Programming/Languages/.NET/Visual_Basic.NET/Q_22875156.html
 
Re: RPC across domains - "The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)"

Re: RPC across domains - "The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)"

In news:4b27f7b5-afe1-4c93-9f2d-d08f8562db41@s19g2000prg.googlegroups.com,
terry@foldingspace.net <terry@foldingspace.net> typed:
>
> It's why the WMI/RPC is failing that I'd like to find out.

Oops, hit send to soon.

One more that may help troubleshoot it:

WMI Isn't Working! Troubleshooting Problems with WMI Scripts and the WMI
Service:
http://www.microsoft.com/technet/scriptcenter/topics/help/wmi.mspx

Ace
 

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