Using FtpWebRequest to do FTP over SSL

re: Using FtpWebRequest to do FTP over SSL

Cindy Ferguson — Mon, 23 Jan 2006 23:20:13 GMT

When I turn on EnableSSL = true I get the following exception:

ex.InnerException.Message = "The message or signature supplied for verification has been altered"

Here is my code:

FtpWebRequest ftpRequest = (FtpWebRequest)WebRequest.Create(myUrl);
ftpRequest.Credentials = myCredentials;
ftpRequest.EnableSsl = true;

ftpRequest.Method = WebRequestMethods.Ftp.ListDirectory;

using (FtpWebResponse ftpResponse = (FtpWebResponse)ftpRequest.GetResponse())

It throws the exception on the final line of code. If comment out the ftpRequest.EnableSSL = true;, I do not get the error.

re: Using FtpWebRequest to do FTP over SSL, The remote server returned an error: (530) Not logged in

Hari — Fri, 23 Jun 2006 11:19:53 GMT

while using SSL(request.EnableSsl = True), the following error occurs: The remote server returned an error: (530) Not logged in

re: Using FtpWebRequest to do FTP over SSL

LastHope — Tue, 12 Sep 2006 13:39:35 GMT

Hi,
I'd like an information: enabling the EnableSsl, it'll make work the FTP connection as a SFTP connection
http://en.wikipedia.org/wiki/SSH_file_transfer_protocol
or not?
If the answer is no, have you got some reference on how I might do it? ;)

re: Using FtpWebRequest to do FTP over SSL

adarshk — Sat, 16 Sep 2006 02:35:28 GMT

Actually current SSL support on ftp does not include SSH FTP. Currently it is based on ftps mentioned in http://en.wikipedia.org/wiki/FTPS, which is basically FTP over SSL/TLS. Future versions of FtpWebRequest may support SSH/FTP.

re: Using FtpWebRequest to do FTP over SSL

Lucky — Sat, 16 Sep 2006 09:11:13 GMT

I have looked at your sample code how do you implent this in a solution

re: Using FtpWebRequest to do FTP over SSL

Navneet — Tue, 10 Oct 2006 19:48:19 GMT

What other options available to to SFTP using .Net?

Thanks,

Navneet

re: Using FtpWebRequest to do FTP over SSL

adarshk — Thu, 26 Oct 2006 04:55:01 GMT

Until .net frameworks 3.0, there is no API available in .net frameworks. There may be some third party options available. (Ex. one I came across is http://www.jscape.com/articles/sftp_using_csharp.html). I could not get chance to try any of them, so can not recommend any from my side.

re: Using FtpWebRequest to do FTP over SSL

Squish — Thu, 09 Nov 2006 03:29:09 GMT

Hi,

I'm using exactly the same code, but when I send a RETR to the FTP server the FTP server thinks its a GET instead.

I've check the FTPWebRequest method and it thinks it's a RETR because of the URI.

I've tried it with other ftp servers and still nothing.

Help..please

Squish

re: Using FtpWebRequest to do FTP over SSL

Milan Petrovic — Fri, 23 Mar 2007 18:11:44 GMT

Can I see the code to implement SSL connection to a server? I have tried this:

FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverUri);

request.Credentials = new NetworkCredential("username", "password");

request.Method = WebRequestMethods.Ftp.ListDirectory;

request.UsePassive = true;

request.EnableSsl = true;

FtpWebResponse response = (FtpWebResponse)request.GetResponse();

And I get following error: The remote certificate is invalid according to the validation procedure.

Server I am trying to connect is FileZilla Server. How to validate this for connection? FileZilla Client works without any problem.

re: Using FtpWebRequest to do FTP over SSL

Tom — Tue, 24 Apr 2007 08:40:41 GMT

I am very confused as to the purpose of ClientCertificates on FtpWebRequest. I need to authenticate to the FTP server using ONLY an X.509 certificate, no username or password. It does not appear that there is any way to do this without going to a third-party component.

re: Using FtpWebRequest to do FTP over SSL

Bob — Thu, 19 Jul 2007 17:25:45 GMT

I am trying to call a web service over https that has an invalid ssl cert. The .Net 2.0 framework throws an "unable to connect to remote host" error every time I try to call a method on the web service. How do I override this. Here is my code:

ServicePointManager.ServerCertificateValidationCallback = ValidateServerCertificate;

hew.apshealthcare.healtheweb_test.HealthEWebService webservice = new hew.apshealthcare.healtheweb_test.HealthEWebService();

DataSet ds = webservice.GetEligibleFamilyMembers(this.tbMemberId.Text);

this.GridView1.DataSource = ds;

this.GridView1.DataBind();

}

public static bool ValidateServerCertificate(

object sender,

X509Certificate certificate,

X509Chain chain,

SslPolicyErrors sslPolicyErrors)

{

return true;

}

re: Using FtpWebRequest to do FTP over SSL

Amit — Tue, 21 Aug 2007 14:48:57 GMT

after enabling Enablessl property it gives an exception on

request.GetResponse();

error(500): unrecognized command.

re: Using FtpWebRequest to do FTP over SSL

Smoother — Thu, 20 Sep 2007 12:26:38 GMT

I am also getting the exception (500) unrecognized command. I just remove the line enableSsl = true; and it works flawless. Is this bug or i am mising something?

re: Using FtpWebRequest to do FTP over SSL

ftp server — Sat, 03 Nov 2007 06:06:23 GMT

Does anyone know if this works with RaidenFTPD ftp server ssl connection?

re: Using FtpWebRequest to do FTP over SSL

Sid — Wed, 02 Jan 2008 19:21:51 GMT

I would like to know is there any way we can implement FTPS in implicit mode.

re: Using FtpWebRequest to do FTP over SSL

Fx — Thu, 21 Feb 2008 22:51:58 GMT

Hi,

Does anybody have sample that works ?

re: Using FtpWebRequest to do FTP over SSL

Sam — Fri, 07 Mar 2008 14:12:42 GMT

If u don't want to answer why u create this blog

re: Using FtpWebRequest to do FTP over SSL

Shashikant Patil — Thu, 24 Apr 2008 13:47:56 GMT

Perhaps you are trying to connect FTP port. FTPS port is different. Try putting correct SSL FTP port.

re: Using FtpWebRequest to do FTP over SSL

artcoding — Tue, 06 May 2008 11:40:49 GMT

The C# ftp SSL works in combination with FileZilla.

Configure Filezilla:

Server options: "SSL/TLS settings"

- check "Enable SSL/TLS Support"

- "Generate new certificate", file path should appear in "Private key file" and in "Certificate file"

- check "Allow esplicit SSL/TLS on normal connections" and optionally recommanded "Force explicit SSL/TLS"

Users:

- "Add" user

- set the password

- check "Force SSL for user login"

- at "Shared folders", "Add" only one without alias and "Set as the home dir"

In C#:

request.EnableSsl = true;

ServicePointManager.ServerCertificateValidationCallback = ... return true;}

FtpWebRequest compile with extended comments

Network Class Library Team (System.Net) — Sat, 26 Jul 2008 04:23:28 GMT

This is a current compile of the team's existing blogs on FtpWebRequest. I am going to update it periodically

re: Using FtpWebRequest to do FTP over SSL

Guest — Fri, 29 Aug 2008 09:28:08 GMT

This is an error when I call function reqFTP.GetRequestStream()

"A call to SSPI failed, see inner exception."

and this is innner exception message "The message received was unexpected or badly formatted"

re: Using FtpWebRequest to do FTP over SSL

varun — Thu, 04 Sep 2008 13:30:19 GMT

try this .. ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(ValidateServerCertificate);

{

FtpWebResponse response =

(FtpWebResponse)reqFTP.GetResponse();

}

re: Using FtpWebRequest to do FTP over SSL

varun — Thu, 04 Sep 2008 13:30:26 GMT

try this ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(ValidateServerCertificate);

{

FtpWebResponse response =

(FtpWebResponse)reqFTP.GetResponse();

}

re: Using FtpWebRequest to do FTP over SSL

Fatou — Wed, 19 Nov 2008 02:14:32 GMT

Thanks for the post. It helped me a lot!

re: Using FtpWebRequest to do FTP over SSL

chaminda — Tue, 25 Nov 2008 15:39:16 GMT

hey I had the same issue, but i was able to get this solved using the content in following posting

http://www.codeguru.com/csharp/.net/net_security/authentication/article.php/c15051

re: Using FtpWebRequest to do FTP over SSL

chaminda — Tue, 25 Nov 2008 15:43:08 GMT

hey I had the same issue, but i was able to get this solved using the content in following posting

http://www.codeguru.com/csharp/.net/net_security/authentication/article.php/c15051

re: Using FtpWebRequest to do FTP over SSL

chaminda — Tue, 25 Nov 2008 15:43:39 GMT

http://www.codeguru.com/csharp/.net/net_security/authentication/article.php/c15051

re: Using FtpWebRequest to do FTP over SSL

Chri — Mon, 05 Jan 2009 03:43:42 GMT

Hm. im scratching my hair off. Why wont FtpWebRequest.EnableSsl=true; work? Anyone got some ideas why it wont work? It seems like its a big problem noone can sove.

Regards

reg SSL | keyongtech

reg SSL | keyongtech — Thu, 22 Jan 2009 09:31:47 GMT

PingBack from http://www.keyongtech.com/679888-reg-ssl

re: Using FtpWebRequest to do FTP over SSL

Giri — Thu, 26 Mar 2009 17:36:35 GMT

I tried this and it worked, but the enablessl flag must be set to true right after you create the ftpwebrequest and before sending the network credential.

Adarsh s blog Using FtpWebRequest to do FTP over SSL | Hair Growth Products

Adarsh s blog Using FtpWebRequest to do FTP over SSL | Hair Growth Products — Sat, 13 Jun 2009 15:50:05 GMT

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