Chilkat HOME .NET Core C# Android™ AutoIt C C# C++ Chilkat2-Python CkPython Classic ASP DataFlex Delphi ActiveX Delphi DLL Go Java Lianja Mono C# Node.js Objective-C PHP ActiveX PHP Extension Perl PowerBuilder PowerShell PureBasic Ruby SQL Server Swift 2 Swift 3,4,5... Tcl Unicode C Unicode C++ VB.NET VBScript Visual Basic 6.0 Visual FoxPro Xojo Plugin
(Android™) Multi-Hop SSH (SSH Through SSH)Demonstrates how to SSH through one SSH server to get to another SSH server. The scheme looks like this: Application => ServerSSH1 => ServerSSH2 The ConnectThroughSsh method is added in Chilkat version 9.5.0.55 to accomplish this task. Technically, it should be possible to chain any number of servers using the ConnectThroughSsh multiple times: Application => ServerSSH1 => ServerSSH2 ==> ServerSSH3 => ... => ServerSSHN
// Important: Don't forget to include the call to System.loadLibrary // as shown at the bottom of this code sample. package com.test; import android.app.Activity; import com.chilkatsoft.*; import android.widget.TextView; import android.os.Bundle; public class SimpleActivity extends Activity { private static final String TAG = "Chilkat"; // Called when the activity is first created. @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkSsh ssh1 = new CkSsh(); // Hostname may be an IP address or domain name: String hostname = "192.168.1.108"; String port = 22; // Connect directly to the 1st SSH server: boolean success = ssh1.Connect(hostname,port); if (success != true) { Log.i(TAG, ssh1.lastErrorText()); return; } // Wait a max of 15 seconds when reading responses.. ssh1.put_IdleTimeoutMs(15000); // Authenticate using login/password: success = ssh1.AuthenticatePw("myLogin","myPassword"); if (success != true) { Log.i(TAG, ssh1.lastErrorText()); return; } // Connect through the 1st SSH connection to reach a 2nd SSH server. // Note: Any number of SSH connections may be simultaneously tunneled through a single // existing SSH connection. CkSsh ssh2 = new CkSsh(); success = ssh2.ConnectThroughSsh(ssh1,"someremoteserver.com",22); if (success != true) { Log.i(TAG, ssh2.lastErrorText()); return; } ssh2.put_IdleTimeoutMs(15000); // Authenticate with ssh2... success = ssh2.AuthenticatePw("myLogin2","myPassword2"); if (success != true) { Log.i(TAG, ssh2.lastErrorText()); return; } // The application may now is connected and authenticated with ssh2. // The application can do whatever it desires just as if it was directly // connected to ssh2. For example, the application might open // a session channel to send commands or start a remote shell.. int channelNum = ssh2.OpenSessionChannel(); if (channelNum < 0) { Log.i(TAG, ssh2.lastErrorText()); return; } // ... // ... // ... // Close the connection with ssh2. (This closes the the tunnel through ssh1.) // The connection with ssh1 is still alive, and may be used for more connections. ssh2.Disconnect(); // ... // ... // ... ssh1.Disconnect(); } static { System.loadLibrary("chilkat"); // Note: If the incorrect library name is passed to System.loadLibrary, // then you will see the following error message at application startup: //"The application <your-application-name> has stopped unexpectedly. Please try again." } } |
© 2000-2024 Chilkat Software, Inc. All Rights Reserved.