SFTP using SOCKS Proxy

Demonstrates how to connect to an SFTP/SSH server through a SOCKS4 or SOCKS5 proxy.

Download Chilkat 32-bit SSH / SFTP ActiveX (.msi)

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    CHILKATSSHLib_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
sftp: TChilkatSFtp;
success: Integer;
port: Integer;
hostname: String;

begin
//  Important: It is helpful to send the contents of the
//  sftp.LastErrorText property when requesting support.

sftp := TChilkatSFtp.Create(Self);

//  Any string automatically begins a fully-functional 30-day trial.
success := sftp.UnlockComponent('Anything for 30-day trial');
if (success <> 1) then
  begin
    ShowMessage(sftp.LastErrorText);
    Exit;
  end;

//  To use a SOCKS4 or SOCKS5 proxy, simply set the following
//  properties prior to connecting:
//  The SOCKS hostname may be a domain name or
//  IP address:
sftp.SocksHostname := 'www.mysocksproxyserver.com';
sftp.SocksPort := 1080;
sftp.SocksUsername := 'myProxyLogin';
sftp.SocksPassword := 'myProxyPassword';

//  Set the SOCKS version to 4 or 5 based on the version
//  of the SOCKS proxy server:
sftp.SocksVersion := 5;

//  Note: SOCKS4 servers only support usernames without passwords.
//  SOCKS5 servers support full login/password authentication.

//  Connect to the SSH server.
//  The standard SSH port = 22
//  The hostname may be a hostname or IP address.

hostname := 'www.my-ssh-server.com';
port := 22;
success := sftp.Connect(hostname,port);
if (success <> 1) then
  begin
    ShowMessage(sftp.LastErrorText);
    Exit;
  end;

//  Your application is now connected to an SFTP/SSH server
//  through a SOCKS4 or SOCKS5 proxy.
//  ...

end;