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<p>Nmap is one of the most used tools for network administrators and cybersecurity pros. Nmap or the Network Mapper is an open-source tool, which means it can be used for free.</p>
<p>The role of the Network Mapper is to use commands for scanning and mapping networks. It can be used to detect live hosts on a network, scan different ports, find the operating system of the network along with its version, and perform security auditing. Learn how to use the <a href="https://www.tutorialsfreak.com/nmap-tutorial/nmap-tool-and-scans" target="_blank" rel="noopener"><strong>Nmap tool</strong></a> in this detailed tutorial.&nbsp;</p>

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Introduction

Prerequisites for Nmap Installation on Ubuntu

How to Install Nmap on Ubuntu?

<p dir="ltr">Before diving into the installation of Nmap, it is essential to have an understanding of <a href="https://tutorialsfreak.com/nmap-tutorial/nmap-tool-and-scans" target="_blank" rel="noopener">what is Nmap</a> and its capabilities.</p>
<p dir="ltr">Nmap stands for Network Mapper. It is a robust open-source tool for inspecting, scanning, and managing networks. It is used by network administrators for <a href="https://tutorialsfreak.com/ethical-hacking-tutorial/what-is-network-scanning-and-its-types" target="_blank" rel="noopener">network discovery and security scanning</a>.&nbsp;</p>
<p dir="ltr">They use Nmap to identify hosts, Operating Systems, services, and <a href="https://tutorialsfreak.com/ethical-hacking-tutorial/what-is-vulnerability-assessment" target="_blank" rel="noopener">vulnerabilities</a> on your network. In simple words, it is used to scan hosts and services on a <a href="https://tutorialsfreak.com/ethical-hacking-tutorial/what-is-networking-and-its-types" target="_blank" rel="noopener">computer network</a>, thus creating a &ldquo;map&rdquo; of the network.&nbsp;</p>
<p dir="ltr">Nmap is available for various operating systems, including Windows, Linux, and macOS. In this article, we will focus on how to install Nmap on Ubuntu.&nbsp;</p>
<p dir="ltr"><strong>Let&rsquo;s examine the different scenarios where in which Nmap can be utilized:</strong></p>
<ul>
<li dir="ltr" aria-level="1">
<p dir="ltr" role="presentation">Network mapping and inventory</p>
</li>
<li dir="ltr" aria-level="1">
<p dir="ltr" role="presentation">Vulnerability Assessment</p>
</li>
<li dir="ltr" aria-level="1">
<p dir="ltr" role="presentation">Security Auditing</p>
</li>
<li dir="ltr" aria-level="1">
<p dir="ltr" role="presentation">Testing firewall rules</p>
</li>
<li dir="ltr" aria-level="1">
<p dir="ltr" role="presentation">Discovering open <a href="https://tutorialsfreak.com/ethical-hacking-tutorial/what-are-networking-ports" target="_blank" rel="noopener">ports on network systems</a></p>
</li>
<li dir="ltr" aria-level="1">
<p dir="ltr" role="presentation"><a href="https://tutorialsfreak.com/ethical-hacking-tutorial/wireless-attacks-wifi-bluetooth-security" target="_blank" rel="noopener">Monitoring wireless networks</a></p>
</li>
<li dir="ltr" aria-level="1">
<p dir="ltr" role="presentation">Automating tasks such as version detection and host discovery</p>
</li>
</ul>

<p dir="ltr">Before getting into the tutorial on how to install Nmap in Ubuntu, let&rsquo;s see the prerequisites.</p>
<h3 dir="ltr">1. Ubuntu Operating System</h3>
<p dir="ltr">Nmap is compatible with Ubuntu and can be installed on any version of the operating system. For this tutorial, you should have a running Ubuntu 20.04 LTS Server.</p>
<h3 dir="ltr" role="presentation">2. Administrative privileges</h3>
<p dir="ltr">Nmap requires administrative privileges to run any command, so you need to be logged in as a root user or use the &ldquo;sudo&rdquo; command.</p>
<h3 dir="ltr" role="presentation">3. Understanding of Command Line</h3>
<p dir="ltr">The installation process of Nmap on Ubuntu happens on the command line. So it is important to have a basic understanding of how to run the commands and navigate through the command line.</p>
<h3 dir="ltr" role="presentation">4. Updated Package List</h3>
<p dir="ltr">Before you proceed with the installation of Nmap on Ubuntu, It is important to have updated packages in your system. You need to have apt available in your system.&nbsp;</p>
<h3 dir="ltr" role="presentation">5. Internet Connection&nbsp;</h3>
<p dir="ltr">In order to download the necessary packages, a strong internet connection is a must.</p>

<p dir="ltr">Let&rsquo;s walk you through the tutorial for installing Nmap for Ubuntu:</p>
<h3 dir="ltr">Step-1: Updating the system package list</h3>
<p dir="ltr">Before installing Nmap in Ubuntu, make sure to update and upgrade your system packages with the<a href="https://wiki.ubuntu.com/Releases" target="_blank" rel="noopener"> latest available versions from Ubuntu</a>.&nbsp;</p>
<p dir="ltr">To upgrade all the packages, open the terminal and run the following command:</p>
<p dir="ltr"><code>sudo apt update &amp;&amp; sudo apt upgrade</code></p>
<h3 dir="ltr">Step-2: Installing Nmap</h3>
<p dir="ltr">In the next step, you can download and install Nmap and the respective dependencies from the Ubuntu repo. This can be performed by running the below command:</p>
<p dir="ltr"><code>sudo apt install nmap</code></p>
<p dir="ltr">The installation process may take a few minutes to complete, so make sure to have a stable internet connection.</p>
<h3 dir="ltr">Step-3: Verifying the Installation</h3>
<p dir="ltr">After the successful installation of Nmap, you can verify the installed files by writing the below command:</p>
<p dir="ltr"><code>dpkg -L nmap</code></p>
<p dir="ltr">It will list down all the installed files and if something is missing you can check here.</p>
<h3 dir="ltr">Step-4: Check Version&nbsp;</h3>
<p dir="ltr">To check the currently installed version of Nmap on your system, you can write:</p>
<p dir="ltr"><code>nmap &ndash;-version</code></p>
<h3 dir="ltr">Step-5: Scan using Nmap</h3>
<p dir="ltr">After the successful installation of Nmap on your system, you can use it to scan for hosts and services on your network. Below is the syntax for the command:</p>
<p dir="ltr"><code>nmap</code></p>
<p dir="ltr">The command with an example:</p>
<p dir="ltr"><code>nmap 192.168.1.0/24</code></p>
<p dir="ltr">This command is going to scan all the current online hosts with IP range 192.168.1.0 to 192.168.1.255. The resulting list will show the number of <a href="https://tutorialsfreak.com/ethical-hacking-tutorial/types-of-ip-address" target="_blank" rel="noopener">IP addresses</a> and their corresponding hostnames, with the status of each host (up or down).&nbsp;</p>
<p dir="ltr">If you want to scan a specific host or IP address, then you can write this command (for example):</p>
<p dir="ltr"><code>nmap 192.168.1.1</code></p>
<p dir="ltr">This will specifically show the host of this IP address and will also show an open SSH port 22.</p>
<h3 dir="ltr">Step-6: Scanning for open ports</h3>
<p dir="ltr">Another important task that you can perform is to scan open ports on a host. The syntax of the command is:</p>
<p dir="ltr"><code>sudo nmap -p</code></p>
<p dir="ltr">To scan for open ports on a specific host, write the below command:</p>
<p dir="ltr"><code>sudo nmap -p 1-65535 192.168.1.1</code></p>
<p dir="ltr">The above command will scan all <a href="https://tutorialsfreak.com/ethical-hacking-tutorial/what-are-networking-ports" target="_blank" rel="noopener">ports </a>ranging from 1 to 65535 on host 192.168.1.1, and output a list of open ports and all services that are running on them.</p>
<h3 dir="ltr">Step-7: Check all available options</h3>
<p dir="ltr">If you want to see all the tools available on Nmap, use the <code>nmap -h command</code>.</p>
<p dir="ltr"><strong>Wrapping Up:</strong></p>
<p dir="ltr">These were the easy steps involved in installing Nmap on Ubuntu 20, a popular Linux distribution. By following the steps mentioned in the article, you can easily install Nmap on Ubuntu and start exploring and auditing your network. If you want to have a better understanding of your network infrastructure and want to improve network security then explore Nmap. Nmap can be used for both legitimate network administration and <a href="https://tutorialsfreak.com/ethical-hacking-tutorial" target="_blank" rel="noopener">ethical hacking</a>.</p>

Are you looking to install NMAP on your Ubuntu operating system? Here is a step-by-step guide on how to get NMAP installed on your Ubuntu OS.

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How to Install Nmap on Ubuntu? (Step by Step Process)

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