从 ArrayList 获取远程服务器的服务，返回错误的结果？

Question

如何根据远程服务器上的字符串数组中列出的确切特定服务名称获取特定服务？

Status   Name               DisplayName                           
------   ----               -----------                           
Running  DFS                DFS Namespace                         
Running  DFSR               DFS Replication                       
Running  DNS                DNS Server                            
Running  EventSystem        COM+ Event System                     
Running  IsmServ            Intersite Messaging                   
Running  KDC                Kerberos Key Distribution Center      
Running  LANMANServer       Server                                
Running  LANMANWorkstation  Workstation                           
Running  Netlogon           NETLOGON                              
Running  NTDS               Active Directory Domain Services      
Running  RPCSs              Remote Procedure Call (RPC)           
Running  SAMSs              Security Accounts Manager             
Running  W32Time            Windows Time 

因为下面的脚本从 $ServiceList 变量中提供的名称返回了错误的服务。

没有提到 Afd 服务，但它仍然显示：

列表中的必需服务之一，DNS 甚至没有显示：

注意：Powershell ISE 已以管理员身份执行并具有域管理员凭据。脚本执行成功，没有问题，但结果与$ServiceList变量内容的具体列表不符。

这是我目前的脚本：

$ServiceList = @(
    'DFS'
    'DFSR'
    'DNS'
    'EventSystem'
    'IsmServ'
    'KDC'
    'LANMANServer'
    'LANMANWorkstation'
    'NETLOGON'
    'NTDS'
    'RPCSs'
    'SAMSs'
    'W32Time'
)

$input = Get-ADDomainController -Filter * | Select-Object -ExpandProperty HostName
$input | ForEach-Object `
{
    $Servers = ($_ -split '\.')[0]
    
    $Servers | ForEach-Object `
    {
        $Server = $_
        
        Write-Host "Processing $($Server) ..." -ForegroundColor Cyan
        
        if (Test-Connection -ComputerName $Server -Count 2 -Quiet)
        {
            foreach ($ServiceToCheck in $ServiceList)
            {
                Write-Host "`tChecking $($Server) - $($ServiceToCheck) ..." -ForegroundColor Yellow
                
                Try
                {
                    If ($services = Get-Service -ServiceName $ServiceToCheck -ComputerName $Server)
                    {
                        $services | Select-Object -ExpandProperty ServicesDependedOn | Select-Object StartType, Status, Name, DisplayName, Machinename, @{ N = 'Service Dependency'; E = { (Get-Service -Name $_.ServicesDependedOn -ComputerName $Server | ForEach-Object { "$($_.Name): $($_.Status)" }) -join '; ' } }
                    }
                    Else
                    {
                        "" | Select-Object @{ n = "Status"; e = { "Services not found" } },
                                           @{ n = "DisplayName"; e = { "$($_.Services)" } },
                                           @{ n = "Machinename"; e = { $Server } }
                    }
                }
                Catch
                {
                    "" | Select-Object @{ n = "Status"; e = { "Error checking services" } },
                                       @{ n = "DisplayName"; e = { "" } },
                                       @{ n = "Machinename"; e = { $Server } }
                }
                
            }
        }
        else
        {
            "" | Select-Object @{ n = "Status"; e = { "Couldn't ping server" } },
                               @{ n = "DisplayName"; e = { "" } },
                               @{ n = "Machinename"; e = { $Server } }
        }
    }
} | Out-GridView

Answer 1

我刚刚重写了你的代码。

我已删除变量 $input，因为它是 PowerShell 中的 Automatic variable。

我还去掉了第二个 $Servers | ForEach-Object 循环，并确保代码的所有部分都输出一个类似的对象以在 GridView 中输出

$ServiceList = 'DFS','DFSR','DNS','EventSystem','IsmServ','KDC','LANMANServer',
               'LANMANWorkstation','NETLOGON','NTDS','RPCSs','SAMSs','W32Time'

Get-ADDomainController -Filter * | Select-Object -ExpandProperty HostName | ForEach-Object {
    $Server = ($_ -split '\.')[0]  # get the server name from the HostName
   
    Write-Host "Processing $($Server) ..." -ForegroundColor Cyan
    
    if (Test-Connection -ComputerName $Server -Count 2 -Quiet) {
        foreach ($ServiceToCheck in $ServiceList) {
            Write-Host "`tChecking $($Server) - $($ServiceToCheck) ..." -ForegroundColor Yellow
            
            Try {
                $svc = Get-Service -ServiceName $ServiceToCheck -ComputerName $Server -ErrorAction Stop
                if ($svc) {
                    # successfully found a service
                    # get basic info about services this service depends on (if any)
                    $dependingOn = (Get-Service -Name $_.ServicesDependedOn -ComputerName $Server | 
                                    ForEach-Object { "$($_.Name): $($_.Status)" }) -join '; '
                    $svc | Select-Object StartType, Status, Name, DisplayName, Machinename, 
                                         @{ n = 'Service Dependency'; e = { $dependingOn } }
                }
                else {
                    # service not found
                    "" | Select-Object StartType, 
                                       @{ n = "Status"; e = { "Service not found" } },
                                       @{ n = "Name"; e = { $ServiceToCheck } },
                                       DisplayName,
                                       @{ n = "Machinename"; e = { $Server } },
                                       'Service Dependency'
                }
            }
            Catch {
                # Get-Service returned an error in $_.Exception.Message
                "" | Select-Object StartType,
                                   @{ n = "Status"; e = { "Error checking services" } },
                                   @{ n = "Name"; e = { $ServiceToCheck } },
                                   DisplayName,
                                   @{ n = "Machinename"; e = { $Server } },
                                   'Service Dependency'
            }
            
        }
    }
    else {
        # server is off-line
        "" | Select-Object StartType,
                           @{ n = "Status"; e = { "Couldn't ping server" } },
                           @{ n = "Name"; e = { $ServiceToCheck } },
                           DisplayName,
                           @{ n = "Machinename"; e = { $Server } },
                           'Service Dependency'
    }
} | Out-GridView

请您检查一下并告诉我们吗？