Category Archives: Linux
Understanding Email Authentication Headers: SPF, DKIM, and DMARC Explained
Email authentication plays an essential role in protecting against domain spoofing, phishing, and unauthorized email delivery. Three key standards, SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting, and Conformance), work together to verify sending servers, validate message integrity, and confirm that authentication aligns with the sender’s domain. Understanding how […]
So You Want to Be a Hacker, Eh?
Let’s get one thing out of the way first. No, this is not about breaking into your school’s grading system, guessing your friend’s Instagram password, or “testing” your neighbor’s WiFi. This is about ethical hacking, also known as cybersecurity, where people are actually paid to find problems before the black hats (Malicious or Illegal hackers) […]
Upgrading to Ubuntu 24.04.02 – ” Oh no! Something went wrong “
How I Fixed My Ubuntu System After Upgrading to 24.04.2 After upgrading to Ubuntu 24.04.02 LTS, my machine would no longer boot. Since I was using a virtual machine, I tried rolling back to a previous snapshot and reinstalling the update, but I ran into the same problem. After much googling and trying different things, […]