5 Basic Networking Commands
As an IT Support, we need to know how to troubleshoot basic network issues properly and should learn how to escalate /descalate the issues to the Network team to resolve them.
Here are the 5 basic commands that you need to learn & master, and they are as follows:
1. ipconfig: This command displays the IP configuration details of the computer. It provides essential "Layer 3" information, such as the IPv4 address, the subnet mask (which determines local network neighbors), and the default gateway (the IP address of the first router hit when accessing external networks).
2. ipconfig /all: This provides more detailed information, including "Layer 2" data like the physical address (MAC address) of the network adapter being used.
3. nslookup: This command is used to query Domain Name Servers (DNS) to find the IP address associated with a specific domain name, such as nesoacademy.org. It helps resolve names into the IP addresses that computers need to communicate.
4. ping: A handy tool to check if two computers are reachable. It sends four packets to a destination IP address or name and reports the number of acknowledgments received. A 100% loss indicates the destination is non-existent or unreachable.
5. tracert (Trace Route): This command traces the path a packet takes from the user's computer to a destination, listing all the intermediary routers (hops) along the way. It shows the IP addresses of these devices and can handle a maximum of 30 hops.
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