April 2025
Intermediate to advanced
236 pages
6h 31m
Italian
Content preview from Imparare eBPF
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Capitolo 1. Cos'è l'eBPF e perché è importante?
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L'eBPF è una tecnologia rivoluzionaria del kernel che permette agli sviluppatori di scrivere codice personalizzato che può essere caricato nel kernel in modo dinamico, cambiando il modo in cui il kernel si comporta. (Non preoccuparti se non sei sicuro di cosa sia il kernel: ne parleremo tra poco in questo capitolo).
Ciò consente una nuova generazione di strumenti di rete, osservabilità e sicurezza altamente performanti. E come vedrai, se vuoi strumentare un'applicazione con questi strumenti basati su eBPF, non devi modificare o riconfigurare l'applicazione in alcun modo, grazie al punto di osservazione di eBPF all'interno del kernel.
Solo alcune delle cose che puoi fare con l'eBPF includono:
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Tracciamento delle prestazioni di praticamente tutti gli aspetti di un sistema
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Rete ad alte prestazioni con visibilità integrata
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Rilevare e (facoltativamente) prevenire le attività dannose
Facciamo un breve viaggio nella storia dell'eBPF, partendo dal Berkeley Packet Filter.
Le radici dell'eBPF: Il filtro a pacchetti di Berkeley
Quello che oggi chiamiamo "eBPF" affonda le sue radici nel BSD Packet Filter, descritto per la prima volta nel 1993 in un documento1 scritto dal Lawrence Berkeley National Laboratory Steven McCanne e Van Jacobson. In questo documento si parla di una pseudomacchina in grado ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.