1. Nmap
Nmap is an open-source tool and the Swiss Army Knife of network troubleshooting. It’s basically Ping with superpowers, broadcasting packets to identify hosts, including their open ports and OS versions. This information is integrated into a network map and inventory, allowing analysts to identify connection issues, vulnerabilities and traffic.
2. Netstat
With increasing network complexity comes a need to simplify network management to make IT administrators’ time and input more effective. Netstat (derived from the words “network” and “statistics”) is useful on Unix-like operating systems, including Windows. When dealing with network security, it’s advantageous to be informed about the inbound and outbound connections to your company’s network.
3. TRACERT And Traceroute
TRACERT and Traceroute are invaluable utilities for any IT team. They give detailed insight into the route your data takes and the response time of your intermediate hosts. As anyone in IT can attest to, even the smallest bit of information can help elucidate the problem at hand. For this reason, TRACERT and Traceroute are goldmines when it comes to troubleshooting.
4. My Traceroute (MTR)
One of the best tools for diagnosing network issues or just exploring network performance is called My Traceroute (MTR). MTR combines the best of Ping and Traceroute into a single tool. It’s a great way to observe both packet loss and latency at the same time.
5
. Batfish
I highly recommend adding network configuration analysis to your troubleshooting toolkit. While Ping can tell you that something is broken, and Traceroute/MTR can tell you where it’s broken, an open-source tool like Batfish can tell you why it’s broken. Better yet, you can use Batfish, or a similar validation tool, to ensure you don’t break anything in the first place!
Author. Shan Mohammad
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