Shell is an advanced utility for testing commands on an open port. When you find an open port, a lot of servers have a HELP command that you can enter, and they will list the commands that are available. You may also want to use the shell to test an Internet application that you are developing, or maybe to test protocol information for a server.
To use Shell, select the item Shell from the Network menu or press 
. A Shell dialog window will be displayed.
Toolbar buttons:
- connect to remote server port;
- Disconnect;
- save the current session text to a text file;
Let's say that on your remote server has port 21 open. This is most likely an FTP server. Now you can test sending FTP commands to the server. Enter the host in the Host name / address field, and the port 21 in the Port number field. Now click "Connect" to attempt to connect to the server.
The first command you must send to an FTP server is "USER " followed by a your user name. In the Command field at the bottom, type "USER YourName" and click Send (or hit enter). This will send the USER command, and the FTP server should respond.
