If you are starting this tutorial at one of the proctored tutorial events, then we've already provided you with a virtual machine that has all of the required software installed.

Otherwise, to complete the exercises, you will need to either build a virtual machine or install several dependencies.

eBPF is a revolutionary technology that can run sandboxed programs in the Linux kernel without changing kernel source code or loading kernel modules.

Loadable kernel modules allow you to add codes to the Linux kernel while it is running.

These modules can do lots of things, especially device drivers, file system drivers and system calls.

An async function is a function declared with the async keyword, and the await keyword is permitted within them.

The async and await keywords enable asynchronous, promise-based behavior to be written in a cleaner style, avoiding the need to explicitly configure promise chains.

The Fetch API provides an interface for fetching resources (including across the network).

It will seem familiar to anyone who has used XMLHttpRequest,

but the new API provides a more powerful and flexible feature set.