View GUI in a remote putty using xming

When you are using remote access to a server sitting on another location, it’s difficult to view GUI s of that server. If you are using putty command prompt, you only can create a ssh connection using putty terminal.

As an example assume that in your remote server there is tcpmon GUI client and you need to open it. When you type >./tcpmon.sh in you shell there you will see error like below,

[root@xxxxxxxx bin]# ./tcpmon.sh

java.awt.HeadlessException:

No X11 DISPLAY variable was set, but this program performed an operation which requires it.

        at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:207)

        at java.awt.Window.<init>(Window.java:535)

        at java.awt.Frame.<init>(Frame.java:420)

        at javax.swing.JFrame.<init>(JFrame.java:224)

        at org.apache.ws.commons.tcpmon.TCPMon.<init>(TCPMon.java:75)

        at org.apache.ws.commons.tcpmon.TCPMon.<init>(TCPMon.java:119)

        at org.apache.ws.commons.tcpmon.TCPMon.main(TCPMon.java:172)

to overcome this problem, you can use Xming server.

 

First download Xming.exe file to your local computer and install it. Then using the icon created in the desktop, start the xming server. After starting the server an icon will show in the right side of the task bar.

Now double click on the putty command terminal icon, it will show login window as below,

 

Now expand SSH sub branch in the bottom of left corner. Select X11 item and tick  on “enable X11 forwarding” like below.

Now login to the remote server. Now you successfully activated X11 facility in your remote session and you can view GUI s like in the local machine.