Introduction Why This Project Exists In modern systems built on Linux and Kubernetes, many observability tools focus on high level telemetry data like metrics, logs, and traces but often leave critical gaps in understanding what’s truly happening at the system level. With eBPF, we can gain deep, …

Introduction In this blog, we will build a basic firewall using eBPF. The goal of this firewall is to block specific IP addresses using a REPL (Read-Eval-Print Loop) written in Go. To achieve this, we will write the kernel-space code in C and the user-space code in Go, leveraging the Cilium eBPF …

Introduction eBPF stands for Extended Berkeley Packet Filter. It is a Linux kernel technology that allows developers to run code in kernel space. This means that developers can modify the behavior of the Linux kernel without changing its source code. This groundbreaking technology is driving …