9h ago · 14 min read · A small e-commerce business owner reached out to me last year with a fraud problem. Orders were coming in from what looked like local customers — names and addresses matched her city — but payments ke
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Apr 28 · 9 min read · A few months back, a friend called me confused. He was trying to set up a VPN whitelist for his office network and needed the exact IP address of a vendor's website. He tried pinging it from the termi
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Feb 28 · 4 min read · When I started learning network security, I thought it was about memorizing protocols and port numbers. But everything changed when I asked myself a simple question: What actually happens when I open
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Feb 13 · 4 min read · When you start working with AWS - especially with EC2 instances - one of the most confusing topics is IP addressing. You launch a server, and suddenly you see Private IP, Public IP, and sometimes something called an Elastic IP. Understanding the diff...
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