{"id":99257,"date":"2021-02-24T22:22:37","date_gmt":"2021-02-24T20:22:37","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-globalnoj-deczentralizovannoj-fajlovoj-sistemy-ipfs-0-8"},"modified":"2021-02-24T22:22:37","modified_gmt":"2021-02-24T20:22:37","slug":"vypusk-globalnoj-deczentralizovannoj-fajlovoj-sistemy-ipfs-0-8","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/vypusk-globalnoj-deczentralizovannoj-fajlovoj-sistemy-ipfs-0-8","title":{"rendered":"Rilascio del sistema di archiviazione decentralizzato IPFS 0.8","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stata presentata la versione 0.8 del sistema di archiviazione decentralizzato IPFS (InterPlanetary File System), che forma un deposito globale di file versionato, implementato come una rete P2P composta da sistemi dei partecipanti. IPFS combina idee precedentemente realizzate in sistemi come Git, BitTorrent, Kademlia, SFS e Web, e ricorda un unico 'ring' BitTorrent (peer che partecipano al download), scambiandosi oggetti Git. IPFS si distingue per l'indirizzamento basato sul contenuto, non sulla posizione e sui nomi arbitrari. Il codice della realizzazione di riferimento \u00e8 scritto in Go e distribuito con licenze Apache 2.0 e MIT.    <\/p>\n<p>Nella nuova versione:  <\/p>\n<ul>\n<li class=\"l\"> \u00c8 stata implementata la possibilit\u00e0 di creare servizi esterni per il pinning dei dati degli utenti (pinning \u2014 fissazione dei dati a un nodo per garantire che i dati importanti siano conservati). I dati fissati al servizio possono avere nomi separati, diversi dall'identifier del contenuto (CID). \u00c8 possibile cercare i dati sia per nome che per CID. Per gestire le richieste di pinning dei dati, \u00e8 stato proposto l'API IPFS Pinning Service, che pu\u00f2 essere utilizzata direttamente in go-ipfs. In riga di comando, per attaccare \u00e8 stato proposto il comando 'ipfs pin remote':         ipfs pin remote service add mysrv https:\/\/my-service.example.com\/api-endpoint myAccessToken     ipfs pin remote add \/ipfs\/bafomydata \u2014service=mysrv \u2014name=myfile       ipfs pin remote ls \u2014service=mysrv \u2014name=myfile     ipfs pin remote rm \u2014service=mysrv \u2014name=myfile\n<li class=\"l\"> Le operazioni di fissaggio (pinning) e sblocco (unpinning) dei dati sul nodo locale sono state accelerate. L'aumento delle prestazioni e la riduzione della memoria utilizzata sono particolarmente evidenti durante l'esecuzione di operazioni di output o modifica su sistemi con un elevato numero di fissaggi.\n<li class=\"l\"> Nella generazione dei link 'https:\/\/' per i gateway \u00e8 stata aggiunta la possibilit\u00e0 di trasferire nomi DNSLink utilizzando sottodomini. Ad esempio, per caricare il nome 'ipns:\/\/en.wikipedia-on-ipfs.org', oltre ai link precedentemente supportati 'https:\/\/dweb.link\/ipns\/en.wikipedia-on-ipfs.org', ora \u00e8 possibile utilizzare collegamenti 'https:\/\/en-wikipedia-on-ipfs-org.ipns.dweb.link', in cui i punti nei nomi originali sono sostituiti dal simbolo '-', mentre i simboli '-' esistenti sono ulteriormente eseguiti con un simile simbolo.\n<li class=\"l\"> \u00c8 stata ampliata la compatibilit\u00e0 con il protocollo QUIC. Per migliorare le prestazioni, \u00e8 stata fornita la possibilit\u00e0 di aumentare i buffer di ricezione per UDP.          <\/ul>\n<p>Ricordiamo che in IPFS il collegamento per accedere a un file \u00e8 direttamente legato al suo contenuto e include l'hash crittografico del contenuto stesso. L'indirizzo del file non pu\u00f2 essere rinominato arbitrariamente; pu\u00f2 cambiare solo dopo una modifica del contenuto. Allo stesso modo, non \u00e8 possibile apportare modifiche al file senza modificare l'indirizzo (la versione vecchia rimarr\u00e0 all'indirizzo precedente, mentre la nuova sar\u00e0 accessibile tramite un altro indirizzo, poich\u00e9 l'hash del contenuto del file cambier\u00e0). Considerando che l'identificatore del file cambia ad ogni modifica, per non dover trasmettere ogni volta nuovi collegamenti, sono disponibili servizi per legare indirizzi permanenti, considerando le diverse versioni del file (IPNS), o per fissare un soprannome in analogia con i tradizionali FS e DNS (MFS (Mutable File System) e DNSLink).         <\/p>\n<p>In modo simile a BitTorrent, i dati sono memorizzati direttamente sui sistemi dei partecipanti, che scambiano informazioni in modalit\u00e0 P2P, senza legami a nodi centralizzati. Quando \u00e8 necessario ottenere un file con un contenuto specifico, il sistema individua i partecipanti che possiedono il file e lo distribuisce dalle loro macchine in parti attraverso pi\u00f9 flussi. Dopo aver caricato il file sul proprio sistema, il partecipante diventa automaticamente uno dei punti per la sua distribuzione. Per identificare i partecipanti nella rete su cui \u00e8 presente il contenuto desiderato, viene utilizzata una tabella hash distribuita (DHT). Per accedere al FS globale, IPFS pu\u00f2 utilizzare il protocollo HTTP o montare un FS virtuale \/ipfs utilizzando il modulo FUSE.         <\/p>\n<p>IPFS contribuisce a risolvere problematiche come l'affidabilit\u00e0 dello stoccaggio (se lo storage originale viene compromesso, il file pu\u00f2 essere caricato dai sistemi di altri utenti), la resistenza alla censura dei contenuti (per bloccare \u00e8 necessario arrestare tutti i sistemi degli utenti che hanno una copia dei dati) e l'organizzazione dell'accesso in assenza di una connessione diretta a Internet o in presenza di una scarsa qualit\u00e0 del canale di comunicazione (\u00e8 possibile caricare dati tramite i partecipanti pi\u00f9 vicini nella rete locale). Oltre a memorizzare file e scambiare dati, IPFS pu\u00f2 essere utilizzato come base per creare nuovi servizi, ad esempio per organizzare il funzionamento di siti non legati ai server o per sviluppare applicazioni distribuite.    <\/p>\n<p><center><img decoding=\"async\" alt=\"Rilascio del sistema di archiviazione decentralizzato IPFS 0.8\" src=\"\/wp-content\/uploads\/2021\/02\/61a259e607e16b5ad2b96c6b3c3412f4.png\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54644\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0434\u0435\u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b IPFS 0.8 (InterPlanetary File System), \u043e\u0431\u0440\u0430\u0437\u0443\u044e\u0449\u0435\u0439 \u0433\u043b\u043e\u0431\u0430\u043b\u044c\u043d\u043e\u0435 \u0432\u0435\u0440\u0441\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0435 \u0444\u0430\u0439\u043b\u043e\u0432, \u0440\u0430\u0437\u0432\u0451\u0440\u043d\u0443\u0442\u043e\u0435 \u0432 \u0444\u043e\u0440\u043c\u0435 P2P-\u0441\u0435\u0442\u0438, \u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0438\u0437 \u0441\u0438\u0441\u0442\u0435\u043c \u0443\u0447\u0430\u0441\u0442\u043d\u0438\u043a\u043e\u0432. IPFS \u043a\u043e\u043c\u0431\u0438\u043d\u0438\u0440\u0443\u0435\u0442 \u0438\u0434\u0435\u0438, \u0440\u0430\u043d\u0435\u0435 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0432 \u0442\u0430\u043a\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u043a\u0430\u043a Git, BitTorrent, Kademlia, SFS \u0438 Web, \u0438 \u043d\u0430\u043f\u043e\u043c\u0438\u043d\u0430\u0435\u0442 \u0435\u0434\u0438\u043d\u044b\u0439 &#171;\u0440\u043e\u0439&#187; BitTorrent (\u043f\u0438\u0440\u044b, \u0443\u0447\u0430\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u0432 \u0440\u0430\u0437\u0434\u0430\u0447\u0435), \u043e\u0431\u043c\u0435\u043d\u0438\u0432\u0430\u044e\u0449\u0438\u0439\u0441\u044f Git-\u043e\u0431\u044a\u0435\u043a\u0442\u0430\u043c\u0438. IPFS \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u0430\u0434\u0440\u0435\u0441\u0430\u0446\u0438\u0435\u0439 \u043f\u043e \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u043c\u0443, \u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":99258,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-99257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0434\u0435\u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0439 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