How to Protect Your Linux Server From DDoS Attacks: A Practical Guide for Developers

Shielding the Core: A digital protective barrier defending an enterprise Linux server rack by deflecting and filtering incoming malicious DDoS traffic streams.

Subtitle: Learn how DDoS attacks work, how to protect a Linux VPS using Cloudflare, Nginx, firewalls, rate limiting, and monitoring, and what to do when your website goes down.

A website can work perfectly for months and suddenly become slow or completely unavailable.

Your CPU usage increases. RAM starts filling up. API requests take several seconds to respond. Your database receives more queries than usual. Eventually, real users can no longer access your application.

At first, you might think your server needs more RAM or a bigger VPS.

But sometimes, the real problem is a Distributed Denial-of-Service (DDoS) attack.

I think every developer who manages a website, Laravel application, API, or Linux VPS should understand this topic. You do not need to be a cybersecurity expert to build a better defense, but you do need to understand which protections actually work.

In this article, we will cover:

• What a DDoS attack is and how it works.
• The difference between DoS and DDoS attacks.
• How to recognize suspicious traffic.
• How to protect a website using Cloudflare.