It shows the same screen however, it displays the port numbers rather than the names.ģ=Enable debug 4=End 5=Display details 6=Disable dįTP is on Port 21, and it is up and listening. This shows us that both FTP and Telnet are in a listen state. Press the Enter key, and select Option 3 from the menu.ģ=Enable debug 4=End 5=Display details 6=Disable debug Step 1: On the operating system command line, type the following: The first thing we want to determine is if the server is running. I will also assume the TCP/IP interface on the Power Systems is active. I will assume that TCP/IP on the IBM Power Systems is up and running and that users can PING the Power Systems. As an administrator, you may hear the following: It is important to verify if the server is actually "listening" or running on the system when performing proper problem determination. It is a common scenario to be unable to connect to a specific TCP/IP server such as Telnet or FTP.
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