Therefore, the only key difference between them is the GUI, Nmap is a command-line tool and to use it graphically we can install Zenmap, which we are going to do here on Ubuntu 20.04 LTS.Ĭonvert Zenmap RPM to Deb package Install ZenMap on Ubuntu 20.04 LTS Focal LinuxĪs Zenmap is not available anymore in the official repository of Ubuntu, thus we have to download and install it manually. The Network Mapper or Nmap is particularly suitable for finding out all active hosts in the network environment (ping sweeps) as well as their operating system (OS fingerprinting) and version numbers of various services installed there. If you don’t have any idea about Nmap, then it is a tool usually used by network security experts to analyze open ports over a network of a computer. ![]() When we install Zenmap it also adds the network driver WinPcap that programs such as Nmap and Wireshark need. It cross-platform GUI (Graphical User Interface) and make it very easy for beginners to use Nmap. However, it could be difficult and cumbersome even for experienced users to use the command line for every small task, thus, in such scenarios, the Zenmap not only helps a lot but also expands the network tool with additional functions. In simple words, the Zenmap is a graphical user interface developed for “ Nmap“, a tool that we use on the command line terminal for scanning ports and networks. With great power comes great responsibility.What is the difference between Nmap and Zenmap? But remember that a tool and a weapon are often only separated by the intent with which they are used. They’re free and open source, which pushes them even closer to perfection. No tool is perfect, but Nmap and Zenmap come pretty close to the perfect network discovery tools. It is a powerful tool for hackers as well, which is why its use is often scrutinized and frowned upon in some settings. You can detect open ports, operating systems, and service versions with it. Zenmap is a professional security tool that provides you with a great deal of information about your network and its components. This article provides a very brief scratch-the-surface overview of Zenmap. Zenmap and Nmap are cross-platform tools that are essential for security professionals, as well as any system administrator with security responsibilities. The Profile Editor requires that you name a new Profile or you have to Cancel and lose your changes. You can selectively edit the Profile or save the changes as a new Profile. Once you’ve saved the Profile, you can use it to scan at any future time by selecting it from the Profile drop-down list. And the standard is -v (verbose mode), which you definitely want regardless of your scan purpose to acquire the most information possible about your target or targets.įigure 2 shows the results of my scan of a Windows 10 system.įigure 6: Zenmap Profile Editor Scan options tab. This option is not recommended when you want to scan a network with a bit of stealth. There is no need to add these options if you use –A. The –A option is an aggressive scan that includes other options such as OS detection, version scanning, script scanning, and traceroute. The documentation recommends level 4, which is right for most authorized network scans on today’s faster (1GbE) networks. Even segmented /22 networks can take hours to scan and that’s not realistic for everyday security scanning. ![]() ![]() Timing values in the 0- 2 range are less likely to set off network IDS alarms they also take a long time to run, especially if the network is large. The levels range from 0 to 5 (see Table 1). The –T4 parameter is a timing template, and 4 is the level (aggressive). In the Command field, you see nmap –T4 –A –v. While that Intense scan runs, let’s take a closer look at it. It will take a few minutes for the scan to complete. For an initial test, select an IP address or a hostname on your network, enter it into the Target field, and click Scan. The target can be a single host, a network, or a web address. You only have to supply a target for the scan. Zenmap’s default scan setting is Intense Scan, and the command-line equivalent of that command is shown in the Command field.
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