Close an SSH Tunnel

See more Socket/SSL/TLS Examples

Demonstrates Socket.SshCloseTunnel, which closes the SSH tunnel opened by SshOpenTunnel and terminates its forwarded channels.

LOCAL nSuccess
LOCAL oSocket
LOCAL cSshPassword

nSuccess := 0

oSocket := CreateObject("Chilkat.Socket")

//  Connect to the SSH server and initialize an SSH tunneling session.  Port 22 is conventional but
//  not required.
nSuccess := oSocket:SshOpenTunnel("ssh.example.com", 22)
IF (nSuccess == 0)
    ? oSocket:LastErrorText
    oSocket:destroy()
    RETURN
ENDIF

//  Authenticate the SSH session before opening forwarded channels.
//  The SSH password should come from a secure source rather than being hard-coded.
cSshPassword := "mySshPassword"
nSuccess := oSocket:SshAuthenticatePw("sshUser", cSshPassword)
IF (nSuccess == 0)
    ? oSocket:LastErrorText
    oSocket:destroy()
    RETURN
ENDIF

//  Close the SSH tunnel and terminate its forwarded channels.  This does not affect unrelated SSH
//  objects or connections.
nSuccess := oSocket:SshCloseTunnel()
IF (nSuccess == 0)
    ? oSocket:LastErrorText
    oSocket:destroy()
    RETURN
ENDIF

? "SSH tunnel closed."

oSocket:destroy()