During the last two weeks, something weird started happening on one of the RDS instances I’m responsible for. Sudden, sharp peaks in active connections appeared — dozens of new ones almost instantly, then slowly disappearing. Within 5–10 minutes, the application would hang and become unresponsive. This wasn’t just a minor blip; it was a full-blown mystery. Phase 1: The Code Witch Hunt The...
Working with AWS logs often feels like drinking from a firehose.WAF, ALB, CloudFront – they all happily generate hundreds of gigabytes of logs. The bigger your workloads grow, the more painful it becomes: queries run for ages, Athena bills keep climbing, and dashboards lag. But here’s the thing: in 90% of cases, you don’t actually need all of the logs. You want a specific day, maybe a week...
Hi, Recently I decided to finally sort out Linux antivirus options for my personal laptop. What started as a quick weekend test of ClamAV turned into a full-blown adventure through GUI glitches, kernel modules, hanging processes, trial versions, and… a realization that I was relying a bit too much on ChatGPT. 🙃 Here’s my full journey, lessons learned, screenshots, and configs — and how I...
Hey everyone, We’re living in truly remarkable times. The twin forces of deglobalization and rapid AI advancement are reshaping our world in ways we can barely keep up with. Unfortunately — at least from my perspective — the impact on cybersecurity feels more negative than positive. The number of cyberattacks I’ve personally seen this year has doubled, maybe even tripled, compared to last. And...
Hi, DevOps fans Here’s a short but practical article on how to set up a maintenance page in AWS using CloudFront, ALB, and Terraform. I’ll assume you already know your way around Terraform, and understand the basics of Application Load Balancer and CloudFront. So let’s skip the “what is ALB” and dive into the real stuff! Also known as a “Service Works Page” or “Downtime Page”, a maintenance page...
Udemy Coupon with MAX discount: PHPRESTSECURITYJULY – active 01.07.2025-01.08.2025;in case coupons are already expired, please check that page regularly – new one will appear soon ENROLL AT PHP CYBERSECURITY COURSE Hi, current article is a short representation of my course: “PHP REST API Cybersecurity”. In an increasingly connected world, cybersecurity is no longer just an IT concern...
If you’ve ever looked at web page performance reports, chances are you’ve focused on average load times (or response times), perhaps glanced at the worst cases (max/min), and maybe moved on. But what if I tell you — to truly understand how your site behaves under load, percentiles + request volume over time are equally (if not more) important? In this post, I’ll walk through why you should...
Hi, and welcome to detailed tutorial at how to deploy web application at AWS Fargate using terraform. Current tutorial assume that you already know and have several basic things/conceptions: You have active AWS account You have basic knowledge about next AWS components: VPC, network, route table, security group, Route 53, Target Group (TG), Application Load Balancer (ALB) You have installed...
Hi cyber security fans. Welcome to the article “Application and AWS CloudWatch as security monitoring tools”, where we will speak about some DevSecOps best practices and not only. The article is built within 2 connected parts: How to use CloudWatch logs, understanding Application logs with CloudWatch insights and dashboards. Custom CloudWatch metrics and alerts as sensitive detector...
Udemy Coupon: OCTFARGATESALE – active 01.10.2025-01.11.2025; in case coupons are already expired, please check that page regularly – new one will appear soon ENROLL AT AWS Fargate course Web application traffic is mostly not stable. Promotions, advertising campaigns, night/day hours – all that cause fluctuations at loading. Managing these unpredictable fluctuations can be a challenge. The...