{"id":103208,"date":"2022-02-06T15:36:53","date_gmt":"2022-02-06T13:36:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/yandeks-opublikoval-skbtrace-utilitu-dlya-trassirovki-setevyh-operaczij-v-linux"},"modified":"2022-02-06T15:36:53","modified_gmt":"2022-02-06T13:36:53","slug":"yandeks-opublikoval-skbtrace-utilitu-dlya-trassirovki-setevyh-operaczij-v-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/yandeks-opublikoval-skbtrace-utilitu-dlya-trassirovki-setevyh-operaczij-v-linux","title":{"rendered":"Yandex ha pubblicato skbtrace, un'utilit\u00e0 per il tracciamento delle operazioni di rete in Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

L'azienda Yandex ha pubblicato il codice sorgente dell'utility skbtrace, che offre strumenti per monitorare il funzionamento dello stack di rete e tracciare l'esecuzione delle operazioni di rete in Linux. L'utility \u00e8 realizzata come un'estensione del sistema di debug dinamico BPFtrace. Il codice \u00e8 scritto in linguaggio Go ed \u00e8 distribuito sotto licenza MIT. \u00c8 supportato il funzionamento con i kernel Linux 4.14+ e con gli strumenti BPFTrace 0.9.2+. <\/p>\n

Durante il funzionamento, l'utility skbtrace genera script in un linguaggio di alto livello BPFtrace che eseguono una traccia dinamica e un'analisi del tempo di esecuzione delle operazioni associate con lo stack di rete Linux e i socket di rete. Gli script vengono poi tradotti in applicazioni eBPF e eseguiti a livello di kernel. <\/p>\n

Fra le funzionalit\u00e0 specifiche di skbtrace si segnala la misura del tempo di trasmissione dei pacchetti tra l'interfaccia di rete in ingresso e quella in uscita, la durata della connessione TCP dal ricevimento del SYN fino all'arrivo del FIN\/RST, le latenza tra i diversi eventi di elaborazione dei pacchetti e il tempo necessario per stabilire la connessione TCP. Skbtrace pu\u00f2 anche essere utilizzato per identificare la ritrasmissione di pacchetti TCP, anche se incapsulati in altri pacchetti, e funge da semplice analogia dell'utilit\u00e0 tcpdump, capace di analizzare l'esecuzione di alcune procedure del kernel, come la chiamata kfree_skb per liberare memoria durante l'abbandono dei pacchetti.
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Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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L'utilit\u00e0 \u00e8 implementata come un'estensione del sistema di debug dinamico BPFtrace. Il codice \u00e8 scritto in linguaggio Go e rilasciato sotto licenza MIT. \u00c8 supportato il funzionamento con i kernel Linux 4.14+ e con l'toolkit BPFTrace 0.9.2+. Durante l'esecuzione","canonical_url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/yandeks-opublikoval-skbtrace-utilitu-dlya-trassirovki-setevyh-operaczij-v-linux","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"it_IT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u042f\u043d\u0434\u0435\u043a\u0441 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b skbtrace, \u0443\u0442\u0438\u043b\u0438\u0442\u0443 \u0434\u043b\u044f \u0442\u0440\u0430\u0441\u0441\u0438\u0440\u043e\u0432\u043a\u0438 \u0441\u0435\u0442\u0435\u0432\u044b\u0445 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\u0423\u0442\u0438\u043b\u0438\u0442\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u0432 \u0444\u043e\u0440\u043c\u0435 \u043d\u0430\u0434\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u043d\u0430\u0434 \u0441\u0438\u0441\u0442\u0435\u043c\u043e\u0439 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043e\u0442\u043b\u0430\u0434\u043a\u0438 BPFtrace. \u041a\u043e\u0434 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Go \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 MIT. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0440\u0430\u0431\u043e\u0442\u0430 \u0441 \u044f\u0434\u0440\u0430\u043c\u0438 Linux 4.14+ \u0438 \u0441 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0435\u043c BPFTrace 0.9.2+. 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