Open Source Background

Linux History and Security

Open Source Software: A History

Operating System Overview

Architecture of Linux Operating System: A Beginner’s Guide in 2025

Linux Directory Structure Explained for Beginners

Linux/Unix Tutorial

Operating System Overview

 

What are some vulnerabilities associated with Linux?

One major vulnerability in Linux is errors in the Kernel. When there is a flaw in the kernel, it is always a tad difficult to patch. Most times, it always requires a whole update of the kernel. Linux users always procrastinate with these updates and leave their systems vulnerable.

To avoid vulnerabilities, it is best to minimize the attack surface. For example,

    • Use a firewall to prevent public connections from accessing internal ports

    • Do not make internal resources such as databases accessible to the public

    • Change SSH port to uncommon one, avoid root login, and close password login (use SSH key instead)

    • If multiple users use the system, separate their privileges and don’t give them full sudo privilege

    • Be cautious about using SMB, FTP, NFS, Telnet, etc. Unless you really need them, do not use them.

    • Update your packages periodically and check your public applications (such as websites) for vulnerabilities.