eBPF (extended Berkeley Packet Filter)

eBPF (extended Berkeley Packet Filter) is a powerful technology that allows programs to run safely inside an operating system’s kernel. It enables real-time monitoring, filtering, and analyzing network traffic, system behavior, and security events without modifying the core software. Think of it as adding custom, lightweight "applications" directly into the OS at a low level, which can improve performance and provide detailed insights. Used in networking, security, and performance tuning, eBPF offers flexibility and safety by running code in a controlled environment, making system management more efficient and adaptable.