Tag: Ubuntu
Ubuntu Users at Risk: Over 40% Vulnerable to Privilege Escalation Flaw
In recent cybersecurity news, a privilege escalation vulnerability has been discovered in Ubuntu systems, specifically within the OverlayFS module. OverlayFS, a widely used Linux...
How to Set Up an OpenVPN Server on Ubuntu 22.04
Step 1: Get a VPS and Connect to It
Register and pay for a VPS. The author used justhost and chose the cheapest virtual...
Enabling SSH on Ubuntu
Introduction
SSH (Secure Shell) is a network protocol that provides a secure way to connect to and control remote computers over a secure network. It...
Working with Links, Archives, and Compression
Links
Create a file named file1.txt and write some text in it.
Create a hard link to file1.txt named hardlink1. Use ls -i to confirm they...
A Practical Guide to File and Directory Management
Working with wildcards:
Create five .txt files named file1.txt, file2.txt, file3.txt, fileA.txt, fileB.txt. Use a wildcard to list only the files that end with a...
I/O Redirection, Using Pipes, Bash Completion, Editing Files with vim and...
1. I/O Redirection
Create a file named file1.txt and write "Hello, World!" into it using I/O redirection.
Create a file named file2.txt and append "How are...
Understanding Your Ubuntu System: How to Check the Number of CPU...
Understanding the number of CPUs on your Ubuntu system is essential for a variety of tasks, including performance optimization, troubleshooting, and knowledge of system...
