Nmap is a widely and extensively used software for enumeration and detection scans. The usability and versatility offered by Nmap are incomparable to the various other technologies available in the market. It is their duty to use various Nmap commands for vulnerability scanning and eliminate lurking threats. They have to constantly check their networks, figure out if there are any vulnerabilities or junk, and eradicate them from the system. IT managers, administrators, and security professionals: every one of them faces a never-ending battle with network traffic. With such a massive number of monitoring tools already available in the market, Nmap is still an industry-standard preferred by many experts. The introduction of networks has given rise to networking administrators whose most important job is to execute Nmap commands or network mapping and port scanning. You have to automate everything during a scan that’s why we use scripts.The current world is like a technical frontier where everything is controlled, processed, and performed by gadgets and technologies.
NSE ( Nmap Scripting Engine) is essential to use when you have to perform a full vulnerability scan. One of the most significant Nmap features that allow you to go beyond your expectations is that you can use the “Nmap scripting engine” through which you can execute a set of pre-defined scripts, and you can write your won scripts as well in Lua programming language. Here is an example: nmap -T4 -A 127.0.0.1 You can enable service detection and OS detection by using the -A option and to allow fast scanning we can use -T4 with it. Have a look at some of the most common yet useful commands. You can go advance, once you have learned the basics of it. There are a ton of commands that you cannot master in a day, but there are some common and useful commands that you can use instantly. You have to use -sU for UDP ports and TCP ports ‘ you’ll use the -sT option.
You can also scan both TCP/UDP by using a single statement. Scanning TCP/UDP at once within a specific range You use the same -p- option to scan UDP ports without specifying a range. Scanning UDP without range is similar to scanning TCP without range. Nmap on windows has the capability to show a whole map of the network. Network Mapping – It can be beneficial for you to check the devices present on a network including all the routers, servers, and switches and to verify how they are connected physically.
This powerful tool carries many features that can be used by a hacker to get a lot of information about their targeted machine. Once it is done, your Nmap is ready to use now. Now the actual installation process will start, and all files will be extracted.Installation location for Nmap will be C:\Program Files (x86)\Nmap, but you can change the Installation folder to wherever you want.