PuTTY Overviews 

PuTTY is a free program for TelNet and SSH, including service. Other protocols such as SSH PSFTP PSCP is available on Win32 and UNIX Platforms. 

tunneling VNC through Putty

VNC Remote Control program is a very good one, will include two parts. As part of a Server and the Client Server will act on information management and keyboard and mouse from side to act on the Client Services section of the GUI, which may be used together. the main GUI of the system (such as all versions of Windows operating system) or may be opening a special GUI. (Such as the UNIX operating system and Linux to be more open XWindows terminal for this one) for the Client will receive the keyboard and press the mouse management. When people use the window of VNCViewer to submit to the server. And a set of instructions received from the Server to make a drawing on VNCViewer features to users of VNC is engaging is the Server and VNC Viewer on almost every flat form from any Windows version. Unix and Linux to every flat form can be used to cross out (such as opening a Linux server to run on XP and View), also suitable for use over XTerminal for Linux and Unix Especially on the network may be a break at any time where the Internet is indeed XTerminal to carry on the servers where VNCServer will clothe Terminal so we can close the window VNCViewer at any time. to reopen at another machine that the world may be different. By the software. The run will not feel the effects.

But VNC is a serious flaw is that the information sent back to the server that client is not encrypted. Of any type. Be sent in a manner that is easy to capture and analyze. This is to take the path of data sent to the VNC come through in the form of Secure shell of tunnelling.

Step process is set text terminal Putty is a very popular program. In the form of tunnelling VNC port through SSH to VNCserver by running on a Linux operating system (or other), but VNCViewer run on machines using Windows operating systems. That most users tend to use Linux or UNIX is a Riomt. General and work on a Windows operating system. Set procedures are as follow:

1. Open up the PuTTY Configuration window, select Connection / SSH / Tunnels.Fill Port Tunnelling through SSH to do down here, we want to tunnel through the Port of VNC, SSH, VNC uses port number 5900 to the port by 5900 to match the terminal, the 5901 match, 0. , terminals 1 to this order on Here we installing vncserver on Linux. In the case of operating system Linux and the UNIX VNCserver Xterminal will open up on new server and make connections with VNCserver (for people unfamiliar with VNCserver on Linux, we can set. the GUI is anything they wish. I like solving this case file ~ Iosesars / .vnc / xstartup. Called the line twm & a / bin / bash / bin / startkde & that it will load KDE replaces the twm) from the above example. I enter a value to the port tunnel is 5,901 (of which we are at present used by PuTTY), which is the destination. thanwa.cpe.mut.ac.th on port 5901 as a thanwa.cpe.mut.ac.th. I use a machine running the server). When I click Add it to:
2. After that I choose. Connecttion / SSH. To open the compression mode to allow the compression before sending data over SSH.This step is not necessary for the operation. You can skip process. If you choose to compress Will see that use VNC as a whole will be put down later. (Because data transmission is less As a result of compression). 
3. Back to Session for convenience. I that we should set the fee for it. We enter the domain or IP of destination (run VNCServer) mode and select a contact SSH (port 22) by clicking the radio button SSH Session from the name then click Save.
4. Time we will use When we open PuTTy session we just kept loading. Then log in as normal text terminal ???? which we must continue to connect in SSH text terminal mode on this all the time we use VNCViewer (If we are locked out while the screen text terminal VNCViewer work will continue. incomplete. Until we close VNCViewe.
5. Then we run VNCViewer but when we enter the IP VNCserver we enter localhost or 127.0.0.1 instead of the value number, terminal ports is governed by the tunnel as we set in the Source port. This is a 5901 match localhost: 1.
   If VNCserver worked on the servers correctly. We will see the screen password. Print it to the original.
6. VNCviewer started work here I have to set the Xterminal 1 (running on the console is 0) if you just run the KDE VNCserver run prior to running VNCViewer little You will see the screen while KDE is installed to monitor and work with.

Relate Link : Secure Shell Protocol TelNet