How to Audit Linux System’s Security with Lynis – Guide
Lynis is an open source program that runs on a variety of Unix-based operating systems, including Linux, macOS, Solaris, FreeBSD, and others. It can be used to perform a security audit on your computer. Having a secure server or PC should be the main concern of any Linux administrator or user. Although Linux is a secure operating system, it is vulnerable to attacks and security breaches in the same way as other operating systems. You will learn how to use Lynis to audit and scan your computer for security holes and holes in this article. Lynis is an open source program that can be used to perform a security audit on your computer.
How to Auditing Linux System Security with Lynis
Installing Lynis on Linux
The first method is to use the Ubuntu Software Center. This tool can be found in the Ubuntu repositories and it allows you to install Lynis on your system. To do this, you will need to type the following command into a terminal: sudo apt-get install lynis Once you have installed Lynis, you can use it by running the following command: lynis
1. Installing Lynis through a package manager
Lynis is a security software program that can be easily installed on your system using the default package manager.
sudo apt-get update sudo apt-get install python3 python3-pip This will install the necessary software for you to run Python 3 and Pip.
sudo lynis
RHEL-based Linux distributions such as Fedora and CentOS offer a wide range of features and options for users, including the ability to install and use a variety of software. These distributions are popular among computer scientists and developers, as they provide a stable platform for working on software projects.
sudo dnf install lynis -y
There are a few Arch-based Linux distributions that are worth considering if you’re looking for a system that is as lightweight and easy to use as possible. These distributions include Ubuntu, Fedora, CentOS, and Debian.
sudo pacman -S lynis
lynis -v
2. Running Lynis directly from the source
Running a security auditing tool, Lynis, from a tarball file without installing it can help you keep your PC running smoothly and with a minimal footprint. ..
lynis -A -v This will run the Lynis audit tool and show you the results.
This command will run the Lynis security auditing tool.
Auditing a Linux Machine with Lynis
Auditing is a common use case for Lynis.
sudo apt-get audit –init This will initiate an audit of your system. ..
sudo lynis audit system
Lynis first profiles your computer system, which includes checking the kernel, hardware and other important parameters to perform an audit.
How to Review Lynis audit reports
-Economic: This includes topics such as inflation, unemployment, and the stock market. -Political: This includes topics such as elections, government policies, and international relations. -Social: This includes topics such as crime, education, and health care. ..
In this category, Lynis provides an overview of the boot process and service manager in use on your system, e.g. systemd, OpenRC, etc. Lynis will also show you how many services are running and which are enabled at boot time. Finally, you will see which services pose a threat to your system’s security because they are unsafe or exposed.
Lynis is a security auditing tool that verifies user administrator accounts, checks password strength and validity, and also checks that important files like /etc/passwd and PAM configuration have proper permissions and are secure. ..
USB devices can be a security risk if they are not properly secured. This guide will help you identify and secure your USB devices.
Lynis is a security tool that can help you protect your computer from attacks over the network. It will also tell you about ports that are open and insecure, and outdated packages that could be a security risk.
Lynis checks the registry and files for errors and vulnerabilities. ..
Lynis scans your network, file systems, shells, memory and processes to identify potential threats.
color code
In addition to categorization, Lynis uses three main color codes to show the severity of a security breach or potential security risk. Green indicates a low severity issue, yellow indicates a medium severity issue, and red indicates a high severity issue. ..
Green shows that the scanned module or software is functioning and that you do not need to take any action. The remaining color codes usually require your urgent attention to remedy the security breach or some other form of action. For example, to update or update the software.
Lynis found a software module that was not found by other auditors.
The last color code is red. You should pay extra attention to reports marked in red. This indicates that you should urgently fix the checked item because it poses a major security threat to your system.
Final note
Auditing Linux system security with Lynis can help identify potential vulnerabilities and improve overall security. ..
