Add Get-NtpSourceType and Get-NtpClientConfig scripts for NTP configuration retrieval

Author: SamErde

General/Get-NtpSourceType.ps1

@@ -0,0 +1,13 @@
+$NTPTypePattern = "^Type: (?'TypeValue'\w+) \({1}\w+\)"
+$MatchNTP = w32tm.exe /query /configuration | Select-String -Pattern $NTPTypePattern
+$NTPSourceType = $MatchNTP.Matches.Groups[1].Value
+$NTPSourceType
+# Should return 'NT5DS' for a domain joined machine, 'NTP' for others, etc.
+
+# Get the NTP Server and Type from the registry
+$RegistryPath = 'HKLM:\SYSTEM\CurrentControlSet\Services\W32Time'
+[PSCustomObject]@{
+    Type              = (Get-ItemProperty -Path "$RegistryPath\Parameters" -Name Type).Type
+    Server            = (Get-ItemProperty -Path "$RegistryPath\Parameters" -Name NtpServer).NtpServer
+    LastKnownGoodTime = [datetime]::FromFileTime( (Get-ItemProperty -Path "$RegistryPath\Config" -Name LastKnownGoodTime).LastKnownGoodTime )
+}

Windows/Get-NtpClientConfig.ps1

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+function Get-NtpClientConfig {
+    <#
+        .SYNOPSIS
+        Get basic NTP client configuration details from Windows.
+
+        .DESCRIPTION
+        This function gets the NTP source server, source type, and last known good time for the NTP client without requiring local administrator privileges. Note: Performing a remote check does require administrative privileges on the remote computer.
+
+        .EXAMPLE
+        Get-NtpConfig
+
+        Gets the NTP client configuration from the local host.
+
+        .EXAMPLE
+        Get-NtpClientConfig -ComputerName 'COMPUTER01'
+
+        Gets the NTP client configuration from COMPUTER01.
+
+        .NOTES
+        Author: Sam Erde
+        Version: 0.1.0
+        Modified: 2024-12-04
+    #>
+    [CmdletBinding()]
+    param (
+        # The computer to query.
+        [Parameter(ValueFromPipeline, Position = 0)]
+        [ValidateNotNullOrEmpty()]
+        [string]$ComputerName = $env:COMPUTERNAME
+    )
+
+    begin {
+        $RegistryPath = 'HKLM:\SYSTEM\CurrentControlSet\Services\W32Time'
+    } # end begin
+
+    process {
+
+        if ($ComputerName -match $env:COMPUTERNAME -or $ComputerName -eq 'localhost') {
+            [PSCustomObject]@{
+                Type              = (Get-ItemProperty -Path "$RegistryPath\Parameters" -Name Type).Type
+                Server            = (Get-ItemProperty -Path "$RegistryPath\Parameters" -Name NtpServer).NtpServer
+                LastKnownGoodTime = [datetime]::FromFileTime( (Get-ItemProperty -Path "$RegistryPath\Config" -Name LastKnownGoodTime).LastKnownGoodTime )
+            }
+        } else {
+            Invoke-Command -ComputerName $ComputerName -ScriptBlock {
+                [PSCustomObject]@{
+                    Type              = (Get-ItemProperty -Path "$RegistryPath\Parameters" -Name Type).Type
+                    Server            = (Get-ItemProperty -Path "$RegistryPath\Parameters" -Name NtpServer).NtpServer
+                    LastKnownGoodTime = [datetime]::FromFileTime( (Get-ItemProperty -Path "$RegistryPath\Config" -Name LastKnownGoodTime).LastKnownGoodTime )
+                }
+            }
+        }
+    } # end process
+
+    end {
+        #
+    } # end end
+
+} # end function Get-NtpConfig