How do you find out the difference between workstations and servers on the network?
.net, active-directory, c#, networking
Solution
Instead of going at the `operatingSystemVersion` property, look at the `operatingSystem` property. That'll give you the name of the SKU. You'll need to know which are server OS versions and which aren't - there's no `IsServer` boolean. Depending on how they're named, you may be able to do a wildcard search on `operatingSystemVersion` to find computers that have a `operatingSystemVersion` that contains the string "server".
Problem
I know how to get the machines on a server using the System.DirectoryServices network. The issue is that I would like to ignore workstations/computers on the network and only retrieve servers. In case someone says to check the OS version, the problem with getting a Win NT family OS version number is that each number may correspond to both a server and non-server OS (such as NT version 6.1 referring both to Win 7 and Win Server 2008 R2). Here is my basic test class: ``` namespace Project1 { class Class1 { public static void Main(string[] args) { List<string> list = Class1.GetComputersOnNetwork(); } public static List<string> GetComputersOnNetwork() { string fileName = "networkcomputers.txt"; // Delete the file if it exists. if (System.IO.File.Exists(fileName)) { System.IO.File.Delete(fileName); } // Create the file. System.IO.FileStream fs = System.IO.File.Create(fileName, 1024); StreamWriter strwr = new StreamWriter(fs); int i = 0; List<string> list = new List<string>(); DirectoryEntry root = new DirectoryEntry("WinNT:"); foreach (DirectoryEntry computers in root.Children) { if ((computers.Name != "Schema")) { i++; Console.WriteLine("Machine Number " + i + ": " + computers.Name); strwr.WriteLine("Machine Number " + i + ": " + computers.Name); list.Add(computers.Name); } } return list; } } } ```