12.06.2024
2 min
1505
To be honest, network scanning tools aren’t just for a narrow circle of pentesters. Sooner or later, anyone who’s ever caught themselves thinking, “What’s actually going on in my network right now?” ends up using them. Someone connects, something is listening on ports, something behaves oddly — and without scanning, you usually hit a dead end.
This article brings together tools that are actually used in real work, not the ones that just look good in lists. Some are great for quickly running through IP addresses and getting a general picture. Others are meant for situations where you need to dig deeper and understand exactly where the network starts to show weaknesses. It’s the kind of toolkit people usually keep close at hand when something doesn’t feel right.
It’s usually the first tool people hear about. This is the one you use to simply “look at the network”: see what’s alive, what responds, and which ports are listening. Flexible, powerful, and at the same time a bit unforgiving for beginners.
This comes in handy when a regular ping doesn’t give you the full picture. Fping lets you “knock” on many hosts at the same time and quickly spot where the network is behaving oddly or starting to fall apart.
An old tool, but still very much alive. It’s often used when you need to quickly check ports, see which services are accessible, or simply get a general sense of a host’s state without running complex scans.
This tool is more about hands-on work than theory. It’s commonly used in local networks when you need to quickly see connected devices and immediately do something with them — for example, power them on or off, or check their availability.
When you don’t feel like digging through settings and just need to quickly scan a range of IP addresses, this tool is a real lifesaver. Launch it, click a button, and you immediately see who’s on the network and who isn’t. It’s often used for quick checks without unnecessary complexity.
Essentially, it’s the same Nmap, but with a human-friendly face. The results don’t just pour into the console — they’re displayed visually. It’s convenient when you want to better understand what was found or explain the results to someone else.
It’s well suited for large networks and situations where speed really matters. It works asynchronously, which makes it possible to scan many hosts without noticeable delays. Not the easiest tool to pick up, but very effective in its class.
This one is almost legendary. It’s used for far more than just port scanning — sometimes it feels like Netcat can be used for almost anything. Simple, versatile, and often kept in the toolkit “just in case.”
It’s less a single tool and more a whole toolkit. It’s a good fit for those who want ping, traceroute, DNS checks, and other basic utilities all in one place, without constantly switching between different tools.
This is already a serious, enterprise-level tool. It’s usually run not “just to take a look,” but when there’s a need to identify specific security issues. Nessus provides detailed reports and is often used as solid evidence in discussions about risks and required updates.
