Little Known Command Line Tools for Network Troubleshooting

Are you tired of using the same old network troubleshooting tools? Do you want to explore new command line tools that can help you diagnose and fix network issues? Look no further! In this article, we will introduce you to some little known command line tools that can make your network troubleshooting easier and more efficient.

1. Nmap

Nmap is a powerful network scanner that can be used to discover hosts and services on a computer network. It can also be used to identify open ports, operating systems, and vulnerabilities. Nmap is a command line tool that is available for Windows, Linux, and macOS.

To use Nmap, simply open a terminal and type the following command:

nmap <target>

Replace <target> with the IP address or hostname of the device you want to scan. Nmap will then scan the target and provide you with a report of the open ports and services running on the device.

2. Tcpdump

Tcpdump is a command line tool that can be used to capture and analyze network traffic. It is available for Linux, macOS, and Windows. Tcpdump can be used to troubleshoot network issues, monitor network activity, and analyze network traffic.

To use Tcpdump, open a terminal and type the following command:

tcpdump -i <interface>

Replace <interface> with the name of the network interface you want to capture traffic from. Tcpdump will then capture network traffic and display it in real-time in the terminal.

3. Netcat

Netcat is a command line tool that can be used to establish TCP and UDP connections, transfer files, and perform port scanning. It is available for Linux, macOS, and Windows. Netcat can be used to troubleshoot network issues, test network connectivity, and transfer files between devices.

To use Netcat, open a terminal and type the following command:

nc <host> <port>

Replace <host> with the IP address or hostname of the device you want to connect to, and <port> with the port number you want to connect to. Netcat will then establish a connection to the target device.

4. Mtr

Mtr is a command line tool that combines the functionality of traceroute and ping. It is available for Linux, macOS, and Windows. Mtr can be used to troubleshoot network issues, monitor network performance, and identify network bottlenecks.

To use Mtr, open a terminal and type the following command:

mtr <target>

Replace <target> with the IP address or hostname of the device you want to test. Mtr will then perform a traceroute and ping test to the target device and display the results in real-time in the terminal.

5. Hping

Hping is a command line tool that can be used to perform advanced network testing and troubleshooting. It is available for Linux, macOS, and Windows. Hping can be used to test network connectivity, perform port scanning, and identify network vulnerabilities.

To use Hping, open a terminal and type the following command:

hping3 <target> -p <port> -S

Replace <target> with the IP address or hostname of the device you want to test, <port> with the port number you want to test, and -S with the TCP SYN flag. Hping will then perform a TCP SYN scan on the target device.

Conclusion

In conclusion, these little known command line tools can make your network troubleshooting easier and more efficient. Nmap can be used to discover hosts and services on a computer network, Tcpdump can be used to capture and analyze network traffic, Netcat can be used to establish TCP and UDP connections, Mtr can be used to combine the functionality of traceroute and ping, and Hping can be used to perform advanced network testing and troubleshooting.

So, what are you waiting for? Start exploring these little known command line tools and take your network troubleshooting to the next level!

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