Computer Networks/Netstat/All

Netstat is a command-line tool that displays network statistics on a variety of operating systems. This activity will show you how to use the netstat command to display all active connections (TCP and UDP)

Preparation
To prepare for this activity:
 * 1) Start your operating system.
 * 2) Log in if necessary.

Activity 1 - Display All Active Connections
To display all active connections:
 * 1)  Open a command prompt.
 * 2) Type netstat -a.
 * 3) Press Enter.
 * 4) Observe active TCP and UDP connections and listening ports, the local address and port number, the remote name or address and port number if a connection is established, and the connection status.

Activity 2 - Display All Active Connections by Number
To display all active connections by number (IP address) instead of by host name:
 * 1) Type netstat -a -n.
 * 2) Press Enter.
 * 3) Observe active TCP and UDP connections and listening ports, the local address and port number, the remote name or address and port number if a connection is established, and the connection status.
 * 4) Close the command prompt to complete this activity.

Readings

 * netstat