Demonstration of Network Commands and Tools

Network commands are important tools that help us interact with network devices through a command-line interface (CLI). They are used to fix connection problems, check how the network is working, and set up devices. These commands make it easier for network administrators and IT teams to solve issues, manage settings, and keep the network running smoothly. They also provide real-time information to quickly find and fix problems, control access, and monitor network traffic for any unusual activity or security risks.

In this demonstration, I will show some of the most common network commands. Using simple examples and screenshots, I will explain how each command works, where it is used, and how it helps manage networks better. Learning these commands can help network professionals easily solve problems and maintain secure and efficient networks.

1. ipconfig: Displays IP configuration for network interfaces.

                   Example: ipconfig /all shows detailed information about network adapters.

2. ping: Tests connectivity to a specific IP address or hostname.

                  Example: ping google.com sends packets to Google to check if it responds. 

3. tracert: Traces the route packets take to a destination.

                       Example: tracert google.com shows each hop a packet makes to Google.

4. netstat: Displays active connections, listening ports, and network statistics.

                        Example: netstat -an lists all active connections and ports.

5. nslookup: Queries DNS to find an IP address associated with a domain name.

                           Example: nslookup google.com returns Google's IP address.

6. arp: Displays and modifies the Address Resolution Protocol (ARP) cache.

                Example: arp -a shows the ARP cache with IP and MAC address mappings.

7. route: Displays and modifies the routing table.

                     Example: route print shows the system's routing table.

8. netsh: Configures various network settings.

                     Example: netsh interface show interface lists network interfaces.

9. getmac: Displays the MAC address for network interfaces.

                   Example: getmac shows physical addresses and associated transport names. 

10. telnet: Connects to remote computers using the Telnet protocol.

                         Example: telnet 192.168.1.1 80 connects to a device on port 80.