SSH authorized_keys file

Hello everyone! I’m back again. Right now, I’m diving into learning how to use Ansible. And guess what? While I was learning some new stuff, I realized something important—I didn’t have an authorized_keys file. So, it’s time to figure out how to deal with that! What is an Authorized_keys file in SSH? The SSH authorized_keys file is a critical component of SSH (Secure Shell) authentication. It’s a file located on the server that contains a list of public keys that are authorized to access the server....

April 4, 2024 · 4 min · Lex romo

Bootloader Issue

Dual-booting Debian 12 and Windows 11 offers the best of both worlds, allowing users to harness the power of Linux and Windows on a single system. However, configuring the GRUB bootloader to manage both operating systems can sometimes lead to issues.I had the bad luck to have some dual-booting issues with my operating systems,but in my world, obstacles are not roadblocks; they are merely opportunities for growth and exploration. Each challenge is met with enthusiasm and mettle, as they embark on a quest for knowledge and mastery, and here I will explain you, how I solved this problem....

April 3, 2024 · 3 min · Lex romo

My Cyber Security Architecture Framework Experience

As I moved from an intern to a permanent role at my workplace, I was excited about the opportunity to contribute in a more significant way. Yet, as I settled into my new position, I couldn’t help but notice a glaring gap in our organization’s defenses: the lack of a structured cybersecurity architecture. Having studied cybersecurity intensively during my time at university, I understood the critical importance of addressing this issue to protect our digital assets....

March 24, 2024 · 3 min · Lex romo

Split Hard drive to install another OS

Split hard drive to install linux: Splitting a hard drive to install Linux refers to the process of dividing the storage space on a physical hard drive into multiple partitions or sections, with the intention of dedicating one or more of these partitions specifically for installing a Linux operating system. When you split a hard drive to install Linux, you typically allocate a portion of the disk space to be used exclusively by the Linux operating system, its associated files, and possibly additional partitions for purposes like swap space or separate home directories....

March 20, 2024 · 6 min · Lex romo

Encryption and Decryption Python Script

Encryption and Decryption Python Script: I wanted to share with you the project I recently completed for our university course, which involved creating a Python script for encryption and decryption. This project was a fascinating exploration into the world of cryptography and programming, and I’m excited to tell you more about it. First and foremost, cryptography plays a crucial role in securing sensitive information in today’s digital age. Whether it’s protecting personal communications, securing financial transactions, or safeguarding sensitive data, encryption serves as a vital tool for ensuring confidentiality and privacy....

February 1, 2024 · 2 min · Lex romo