FtpWebRequest connection

Yes, I beleive the command connection (to port 21) is persistent. Try the following code:

FtpWebRequest req = (FtpWebRequest)WebRequest.Create(ftp://somehost.com/test/file1.txt);
FtpWebResponse resp = (FtpWebResponse)req.GetResponse();
StreamReader reader = new StreamReader(resp.GetResponseStream());
reader.ReadToEnd();
resp.Close();

FtpWebRequest req2 = (FtpWebRequest)WebRequest.Create(ftp://somehost.com/test/file2.txt);
FtpWebResponse resp2 = (FtpWebResponse)req2.GetResponse();
StreamReader reader2 = new StreamReader(resp2.GetResponseStream());
reader2.ReadToEnd();
resp2.Close();

NOTE: Be sure to replace "somehost" in the above code to a valid hostname and file path.

I observed that a single TCP command connection (on port 21) to the host was used and two additional connections were used to transfer the contents of the files. Please reply if this is not the case for you.

Mike Flasko

MikeFlasko at 2007-9-9 >