Clock Drift Powershell script settings.

MEKVII

I'm using the default clock drift script, trying to figure out where to change enter the time.nist.gov server as the time server. I see the $time_server = $args, but when I place the time.nist.gov I get an error saying error in call method. I guess the easiest way to ask my questions is just where do I input the time settings for clock drift and where do I input the time.nist.gov server? Dumb question I know, but I a newb. Thank you. 

Below is the unedited script. I also looked for the documentation, but the page where it was originally posted is blank. 

# Argument example: time.nist.gov
function Get-InternetTime ([string]$time_server) {
$TcpClient = New-Object System.Net.Sockets.TcpClient
[byte[]]$buffer = ,0 * 64
$TcpClient.Connect($time_server, 13)
$TcpStream = $TcpClient.GetStream()
$length = $TcpStream.Read($buffer, 0, $buffer.Length);
[void]$TcpClient.Close()
$raw = [Text.Encoding]::ASCII.GetString($buffer)
[DateTime]::ParseExact($raw.SubString(7,17), 'yy-MM-dd HH:mm:ss', $null).toLocalTime()
}
$time_server = $args.get(0);
if ( !$time_server )
{
Write-Host "Message: Can't find ""time_server"" argument. Check documentation.";
exit 1;
}
$Error.Clear();
$a = Get-InternetTime $time_server;
$a_Y = $a.Year;
$a_M = $a.Month;
$a_D = $a.Day;
$a_h = $a.Hour;
$a_m = $a.Minute;
$a_s = $a.Second;
$a_t = $a.Ticks;
$b = [DateTime] (get-date);
$b_Y = $b.Year;
$b_M = $b.Month;
$b_D = $b.Day;
$b_h = $b.Hour;
$b_m = $b.Minute;
$b_s = $b.Second;
$b_t = $b.Ticks;
if ($Error.Count -ne 0) {
Write-Host "Message: Try to rerrun script. Error: $($Error[0])";
exit 1;
}
$server_time = (31104000*$a_Y)+(2592000*$a_M)+(86400*$a_D)+(3600*$a_h)+(60*$a_m)+$a_s;
$local_time = (31104000*$b_Y)+(2592000*$b_M)+(86400*$b_D)+(3600*$b_h)+(60*$b_m)+$b_s;
$clock_drift=$server_time-$local_time;
if ($clock_drift -lt 0)
{
$clock_drift=$clock_drift*(-1);
$symbol=$clock_drift;
}
else
{
$symbol="-",$clock_drift;
}
Write-Host "Message: Clock drift: $symbol s. Current date and time on target server: $b";
Write-Host "Statistic: $clock_drift";
exit 0;

chad.every

So the time.nist.gov server is actually found outside of the script in the Component Monitor itself in the 'Script Arguments' section.

That eventually gets passed into the script as the first argument/parameter, $time_server = $args[0]; 

*One item to note here is WHERE the script is executing. If the node is being monitored via WMI (Agentless), then the script is executed on the Main Orion Server. So if your end goal is to check for clock drift across several remote servers, then you'll want to switch the polling method from WMI to Orion Agent. By default, if the Orion Agent is installed, then PowerShell scripts are executed on the monitored node and not the Main Orion Server.

If you still want to use an agentless approach and poll via WMI, then right below the component script pane there is a drop down that you can update to 'Remote Host'. This requires the use of WinRM, which most likely would need to be setup and configured outside of SolarWinds first.