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eBPF 101: Your First Step into Kernel Programming
eBPF has revolutionized Linux observability and security by allowing sandboxed programs to run in the kernel without changing kernel source code or loading modules
bcc is the core library that lets us interact with eBPF, while the others help with handling signals, time, file paths, and network data structures. The TerminateSignal exception and handle_sigterm function work together to catch termination signals (like SIGTERM), allowing the script to proceed to the cleanup steps instead of stopping abruptly. Many tech giants Netflix, Dropbox, Yahoo, LinkedIn, Alibaba, Datadog, Shopify, DoorDash use eBPF for network observability, infrastructure debugging, pod networking/security in Kubernetes, intrusion detection.
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