How to get list of Files on a Remote Server in ASP.Net

I am having the following code which read all file names from local machine and write them in text file. I need to read File Names from Remote Server. Thanks in Advance.

StreamWriter objsw = new StreamWriter("C:\\log.txt",true);
public void ReadAllFiles()
{
    try
    {
        string[] arr = Directory.GetFiles(@"C:\Test");
        foreach (string name in arr)
        {
            Console.WriteLine(name);
            objsw.WriteLine(name);
        }
    }
    catch (Exception)
    {
        throw;
    }
    finally
    {
        objsw.Dispose();
    } 
}