捕获RPC服务器不可用错误HRESULT：0x800706BA

Question

在powershell中，我可以使用Catch [System.UnauthorizedAccessException]捕获“ Access is Denied”错误。如何类似地捕获RPC服务器不可用错误？

Answer 1

如果在我的情况下，将通用参数-ErrorAction Stop添加到get-wmiobject命令，它将导致该命令将该非终止错误作为终止错误进行响应，并将其丢弃以采取措施。

这是我用于此目的的代码。我可能应该在捕获中更具体一些，但现在可以使用。

# Is this machine on network?, if not, move to next machine
If (!(Test-Connection -ComputerName $computerName -Count 1 -Quiet)) { 
  Write-Host "$computerName not on network."
  Continue # Move to next computer
}

# Does the local Administrator account exist? Returns a string if it exists, which is true-ish.
try {

  $filter = "Name='$olduser' AND Domain='$computerName'"
  $account = Get-WmiObject Win32_UserAccount -Filter $filter -ComputerName $computerName -ErrorAction Stop

} catch {

  Write-Warning "$computerName Can't check for accounts, likely RPC server unavailable"
  Continue # Move to next computer

} #end try