{"id":101359,"date":"2021-09-21T22:22:43","date_gmt":"2021-09-21T20:22:43","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predstavlen-modul-yadra-sposobnyj-v-razy-uskorit-openvpn"},"modified":"2021-09-21T22:22:43","modified_gmt":"2021-09-21T20:22:43","slug":"predstavlen-modul-yadra-sposobnyj-v-razy-uskorit-openvpn","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/predstavlen-modul-yadra-sposobnyj-v-razy-uskorit-openvpn","title":{"rendered":"Presentato un modulo del kernel in grado di accelerare notevolmente OpenVPN","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Gli sviluppatori del pacchetto per la creazione di reti private virtuali OpenVPN hanno presentato il modulo del kernel ovpn-dco, che consente di migliorare significativamente le prestazioni della VPN. Anche se il modulo \u00e8 attualmente in fase di sviluppo, mirando solo al ramo linux-next e avendo uno status sperimentale, ha gi\u00e0 raggiunto un livello di stabilit\u00e0 che consente di utilizzarlo per fornire servizi con OpenVPN Cloud. <\/p>\n

Rispetto alla configurazione basata su interfaccia tun, l'uso del modulo sia sul lato client che sul server con la crittografia AES-256-GCM ha permesso di ottenere un incremento della capacit\u00e0 di 8 volte (da 370 Mbit\/s a 2950 Mbit\/s). Utilizzando il modulo solo sul lato client, la capacit\u00e0 \u00e8 aumentata di tre volte per il traffico in uscita e non \u00e8 cambiata per quello in entrata. Utilizzando il modulo solo sul lato server<\/a> la capacit\u00e0 \u00e8 aumentata di 4 volte per il traffico in entrata e del 35% per quello in uscita.

\"Presentato<\/center> <\/p>\n

L'accelerazione avviene spostando tutte le operazioni di crittografia, elaborazione dei pacchetti e gestione della connessione nel kernel di Linux, il che consente di eliminare i costi associati al cambio di contesto, ottimizzando il lavoro tramite l'accesso diretto alle API interne del kernel e riducendo il trasferimento lento dei dati tra il kernel e lo spazio utente (la crittografia, la decrittografia e il routing vengono eseguiti dal modulo senza inviare il traffico al gestore nello spazio utente). <\/p>\n

Si osserva che c'\u00e8 un impatto negativo sulle prestazioni VPN<\/a> si concentrano principalmente su operazioni di crittografia ad alta intensit\u00e0 di risorse e su ritardi causati dal cambio di contesto. Per accelerare la crittografia sono state utilizzate estensioni del processore come Intel AES-NI, ma i cambi di contesto sono rimasti un collo di bottiglia fino all'introduzione di ovpn-dco. Oltre all'uso delle istruzioni fornite dal processore per accelerare la crittografia, il modulo ovpn-dco garantisce inoltre la divisione delle operazioni di crittografia in segmenti separati e la loro elaborazione in modalit\u00e0 multithreading, permettendo di sfruttare tutti i core della CPU disponibili. <\/p>\n

\u0418\u0437 \u0442\u0435\u043a\u0443\u0449\u0438\u0445 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0432 \u0431\u0443\u0434\u0443\u0449\u0435\u043c \u0431\u0443\u0434\u0443\u0442 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b, \u0432\u044b\u0434\u0435\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0442\u043e\u043b\u044c\u043a\u043e \u0440\u0435\u0436\u0438\u043c\u043e\u0432 AEAD \u0438 ‘none’ (\u0431\u0435\u0437 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438) \u0438 \u0448\u0438\u0444\u0440\u043e\u0432 AES-GCM \u0438 CHACHA20POLY1305. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 DCO \u043f\u043b\u0430\u043d\u0438\u0440\u0443\u044e\u0442 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 OpenVPN 2.6, \u0437\u0430\u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u043d\u0430 4 \u043a\u0432\u0430\u0440\u0442\u0430\u043b \u043d\u044b\u043d\u0435\u0448\u043d\u0435\u0433\u043e \u0433\u043e\u0434\u0430. \u0412 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u043c\u043e\u0434\u0443\u043b\u044c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0432 \u043f\u0440\u043e\u0445\u043e\u0434\u044f\u0449\u0435\u043c \u0431\u0435\u0442\u0430-\u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 Linux-\u043a\u043b\u0438\u0435\u043d\u0442\u0435 OpenVPN3 \u0438 \u0432 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0445 \u0441\u0431\u043e\u0440\u043a\u0430\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 OpenVPN \u0434\u043b\u044f Linux. \u041f\u043e\u0445\u043e\u0436\u0438\u0439 \u043c\u043e\u0434\u0443\u043b\u044c ovpn-dco-win \u0442\u0430\u043a\u0436\u0435 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Windows.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0430\u043a\u0435\u0442\u0430 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u0447\u0430\u0441\u0442\u043d\u044b\u0445 \u0441\u0435\u0442\u0435\u0439 OpenVPN \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0438 \u043c\u043e\u0434\u0443\u043b\u044c \u044f\u0434\u0440\u0430 ovpn-dco, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0439 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0443\u0441\u043a\u043e\u0440\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c VPN. \u041d\u0435\u0441\u043c\u043e\u0442\u0440\u044f \u043d\u0430 \u0442\u043e, \u0447\u0442\u043e \u043c\u043e\u0434\u0443\u043b\u044c \u043f\u043e\u043a\u0430 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0441 \u043e\u0433\u043b\u044f\u0434\u043a\u043e\u0439 \u0442\u043e\u043b\u044c\u043a\u043e \u043d\u0430 \u0432\u0435\u0442\u043a\u0443 linux-next \u0438 \u0438\u043c\u0435\u0435\u0442 \u0441\u0442\u0430\u0442\u0443\u0441 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u043e\u0433\u043e, \u043e\u043d \u0443\u0436\u0435 \u0434\u043e\u0441\u0442\u0438\u0433 \u0443\u0440\u043e\u0432\u043d\u044f \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0432\u0448\u0435\u0433\u043e \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u0442\u044c \u0435\u0433\u043e \u0434\u043b\u044f \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0441\u0435\u0440\u0432\u0438\u0441\u0430 OpenVPN Cloud. \u041f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0435\u0439 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":101360,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-101359","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Presentato il modulo del kernel in grado di accelerare notevolmente OpenVPN | ProHoster","description":"Gli sviluppatori del pacchetto per la creazione di reti private virtuali OpenVPN hanno presentato il modulo del kernel ovpn-dco, che consente di accelerare significativamente le prestazioni della VPN. Sebbene il modulo sia ancora in fase di sviluppo con un focus attuale sulla branch linux-next e abbia uno status sperimentale, ha gi\u00e0 raggiunto un livello di stabilit\u00e0 tale da poter essere utilizzato per garantire il funzionamento del servizio OpenVPN Cloud. Rispetto alla configurazione basata su interfaccia.","canonical_url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/predstavlen-modul-yadra-sposobnyj-v-razy-uskorit-openvpn","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\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u043c\u043e\u0434\u0443\u043b\u044c \u044f\u0434\u0440\u0430, \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u044b\u0439 \u0432 \u0440\u0430\u0437\u044b \u0443\u0441\u043a\u043e\u0440\u0438\u0442\u044c OpenVPN | 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