Background and Introduction Denial-of-service (DoS) attacks are a common threat to web servers and other online services. These attacks attempt to overwhelm a server with traffic, making it unavailable to legitimate users. Nginx is a popular web server that is…
Background DNS hijacking is a technique used by ISPs to redirect DNS queries to their own servers. This can be done for a variety of reasons, such as to block access to certain websites, to collect data about users’ browsing…
Want to protect your online privacy and security? a complete network isolation? Install OpenVPN on your router and forget about it. All of your devices will be protected automatically, no need to install any VPN apps. OpenVPN encrypts all of…
Chapter 1: The Birth of a Bare Metal Server In 2019, armed with determination and a desire for exploration, I embarked on a fascinating journey into the realm of server administration. With an old laptop powered by an Intel Celeron…
DNS hijacking is when someone changes the address book that computers use to find websites on the internet. Imagine you have a big book that tells you where all your friends live. When you want to visit your friend’s house,…
reCAPTCHA is like a game that helps the computer know if you are a real person or a robot. When you go to some websites, they ask you to solve a puzzle or pick some pictures to show that you…
You know when you play a game with a secret code? TOTP is like that, but for keeping our important things safe, like our online accounts. First, we have a special secret key. It’s like a magic password that only…
Today, I’ll build an autoscaling system based on multiple instance groups in two regions. One instance group will be in Singapore, with a maximum number of instances of 2, and another will be in Belgium. Both instance groups have the…
I will make a connectivity dashboard to check a server’s condition and port status in this post. Part 1: Create an index.php file First, create a main index.php file. In this code, I use this AJAX method to get value…