How to use Linux for network security scanning

Network security scanning is one of the key steps in protecting your network from malicious attacks. Linux is a popular operating system with powerful network security tools, so conducting network security scans on Linux is a good choice. This article will introduce how to use Linux for network security scanning.

Step One: Install the Network Security Scanning Tool

Ubuntu is one of the widely used Linux distributions. For Ubuntu users, you can use the APT (Advanced Package Tool) package manager to install network security scanning tools. Open a terminal and enter the following commands:

sudo apt update
sudo apt install nmap nikto

The above commands will install two different network security scanning tools: Nmap and Nikto. Nmap is used to discover and identify devices on the network, and Nikto is used to detect vulnerabilities on web servers.

Step Two: Use Nmap for Network Scanning

Once you have Nmap installed, enter the following command in the terminal to scan for devices on your local area network (LAN).

sudo nmap -sP 192.168.0.0/24

The above command will scan all devices in the LAN with IP address range 192.168.0.0-192.168.0.255 and display their IP addresses and MAC address. You can scan other LANs by changing the IP address range.

To scan open ports, you can use the following command:

sudo nmap -sS -p 1-65535 192.168.0.1

The above command will scan the IP address 192.168 .0.1 device and displays all open ports. You can scan other devices by changing the IP address.

In addition, Nmap can also be used to identify service and operating system information, and discover vulnerabilities.

Step Three: Use Nikto for Web Server Vulnerability Scanning

Nikto is a tool specifically used for vulnerability scanning. It can discover vulnerabilities on the Web server, such as SQL injection, XSS vulnerabilities, etc. . To use Nikto, you just need to enter the following command in the terminal:

sudo nikto -h 192.168.0.1

The above command will scan for the web server with the IP address 192.168.0.1 and display it List of discovered vulnerabilities. You can scan other web servers by changing the IP address.

Summary

Using Linux for network security scanning is a powerful method because Linux has various network security tools. In this article, we introduce two of the most popular network security scanning tools: Nmap and Nikto. By using these tools, you can discover and fix vulnerabilities in your network to protect it from malicious attacks.

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