Vista - remote application pool recycle using WMI \ PowerShell

I'm having some trouble finding the best method for recycling remote IIS6
application pools using PowerShell.

In the past this has always been very easy using VB script:

Function PoolRecycle(strServer)

On Error Resume Next
Err.Clear

Dim objWMIService
Dim colItems
Dim objItem

'recycle application pool
WScript.Echo ""
Err.Clear
Set objWMIService = GetObject _
("winmgmts:{authenticationLevel=pktPrivacy}\\" _
& strServer & "\root\microsoftiisv2")

'connect to WMI
Set colItems = objWMIService.ExecQuery("Select * From IIsApplicationPool")

'Step through the objects to be recycled
For each objItem in colItems
objItem.Recycle
If err = 0 Then
WScript.Echo(strServer & " - " & ObjItem.Name & " Recycled")
PoolRecycle = "success"
Else
WScript.Echo("Unable to recycle the application pool on " & strServer)
PoolRecycle = "failed"
End If
Next

End Function

I have attempted to duplicate the same thing in PowerShell, but I believe I
am still running into an issue with the pktPrivacy authentication setting.
The following code works when executing localy, but not on a remote host:

Function PoolRecycle($strServerName)
{
$objWMI = [WmiSearcher] "Select * From IIsApplicationPool"
$objWMI.Scope.Path = "\\" + $strServerName + "\root\microsoftiisv2"
$objWMI.Scope.Options.Authentication = 6
$pools = $objWMI.Get()
foreach ($pool in $pools)
{
$pool.recycle()
if (!$?)
{
Write-Host $pool.name " - ERROR"
}
else
{
Write-Host $pool.name " - Recycled"
}
}
}


Any help or better ways of accomplishing this in PowerShell would be very
much appreciated!

Thanks
Bill

If you know the application pool name (the function returns true/false respectively:

function Recycle-AppPool{
param([string]$server,[string]$appPool)

([WMI]"\\$server\root\MicrosoftIISv2:IIsApplicationPool.Name='W3SVC/AppPools/$appPool'").recycle();
if($? -ne 0}{$false} else {$true}
}


To get a list of application pool names:

$computer = "your Server name/ip"
gwmi -class IIsApplicationPool -namespace "root\MicrosoftIISv2" -computer
$computer | % {$_.name}



-----
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

Pinging the remote machine before trying to recycle pools is a recommended
practice.

Also, I wrote:

gwmi -class IIsApplicationPool -namespace "root\MicrosoftIISv2" -computer
$computer | % {$_.name}

for those who are not familiar with gwmi and %, I should say that they are
aliases for:
gwmi = get-wmiobject
% = foreach-object

I should have written it like:

get-wmiobject -class IIsApplicationPool -namespace "root\MicrosoftIISv2"
-computer $computer | foreach-object {$_.name}



-----
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

Shay,

Thanks for the help, but I see the namespace "root\MicrosoftIISv2" operate
differently when attempting to access it on a remote IIS6 computer (default
W2K3 installs).


The code examples you pointed out all work fine when targeting the namespace
locally, but I recieve access denied messages when useing the same commands
remotely.

I have tried from multiple machines to multiple servers. The VB Script I
supplied still works in all cases, which leads me to believe I am not setting
the PowerShell WMI object authentication to use pktPrivacy correctly.

Any advice would be appreciated.

Thanks
Bill

"Shay Levi" wrote:

Bill

I can't test it right now. Try this on the remote server(s

1. Start > Run > dcomcnfg > ENTER
2. In the left pane (Compnent Services.msc) expand "Component Services" >
Computers
3. Right click "My Computer"
4. In the "Default Properties" tab tick the "Enable COM Internet Services
on this computer" checkbox
5. Reboot remote server
6. Test again

I can't recall if you need to add Access Permissions in the "COM Security"
tab.



-----
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

Hi Shay,

I have tested this and it still does not resolve the issue.

I guess I must be missing something. The fact that the VB Script works and
the PowerShell does not, leads me to believe that I have an issue with my
script and not the security on the target server.

I may have to use PowerShell to call the actual .Net class instead of using
the built in commands.

Funny, I would have never believed that something as simple as recycling a
remote application pool would be so hard

Thanks again for the help.
Bill


"Shay Levi" wrote:

Are you able to list the Application poll names?

$server="server"
$objWMI = [WmiSearcher] "Select * From IIsApplicationPool"
$objWMI.Scope.Path = "\\$server\root\microsoftiisv2"
$objWMI.Scope.Options.Authentication = [System.Management.AuthenticationLevel]::PacketPrivacy
$pools = $objWMI.Get()
$pools | foreach { $_.name }


-----
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

Bill

Just to clarify, I'm not able to recycle remote app pools, just list their
names (Access denied).
Even adding full security on IIsApplicationPool (WMI Properties) didn't resolve
it.
I'm still on it...

-----
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

Hi Shay,

Yeah, I can list the pools, but only after specifing the authentication
setting.

It's almost like it does not carry to the other objects.

I appreciate the help.

Thanks
Bill


"Shay Levi" wrote:

I'll keep looking for it :-)

-----
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com