Open a Forwarded Channel through an SSH Tunnel

See more Socket/SSL/TLS Examples

Demonstrates Socket.SshNewChannel, which opens a port-forwarded channel through an authenticated SSH tunnel to a destination host and port, populating a Socket with the connected channel.

Dim success As Boolean
success = False

Dim socket As New Chilkat.Socket

//  Connect to the SSH server and initialize an SSH tunneling session.  Port 22 is conventional but
//  not required.
success = socket.SshOpenTunnel("ssh.example.com",22)
If (success = False) Then
    System.DebugLog(socket.LastErrorText)
    Return
End If

//  Authenticate the SSH session before opening forwarded channels.
//  The SSH password should come from a secure source rather than being hard-coded.
Dim sshPassword As String
sshPassword = "mySshPassword"
success = socket.SshAuthenticatePw("sshUser",sshPassword)
If (success = False) Then
    System.DebugLog(socket.LastErrorText)
    Return
End If

//  Open a port-forwarded channel through the authenticated SSH tunnel to the destination host and
//  port, populating a Socket with the connected channel.  Set the 3rd argument to 1 to establish
//  TLS to the destination inside the tunnel.
Dim bTls As Boolean
bTls = False
Dim maxWaitMs As Int32
maxWaitMs = 20000
Dim channel As New Chilkat.Socket
success = socket.SshNewChannel("db.internal",5432,bTls,maxWaitMs,channel)
If (success = False) Then
    System.DebugLog(socket.LastErrorText)
    Return
End If

//  Use the channel socket to send and receive with the destination through the tunnel.
System.DebugLog("Forwarded channel opened to the destination.")