{"id":92493,"date":"2020-08-27T19:42:43","date_gmt":"2020-08-27T17:42:43","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-ubuntu-20-10-planiruyut-perejti-s-iptables-na-nftables"},"modified":"2020-08-27T19:42:43","modified_gmt":"2020-08-27T17:42:43","slug":"v-ubuntu-20-10-planiruyut-perejti-s-iptables-na-nftables","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/v-ubuntu-20-10-planiruyut-perejti-s-iptables-na-nftables","title":{"rendered":"V Ubuntu 20.10 pl\u00e1nuj\u00fa prejs\u0165 z iptables na nftables","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Nasleduje Fedora<\/a><\/noindex> a Debian<\/a><\/noindex> v\u00fdvoj\u00e1ri Ubuntu zva\u017euj\u00fa mo\u017enos\u0165<\/a><\/noindex> prejdenia na pou\u017eitie predvolen\u00e9ho paketov\u00e9ho filtra nftables<\/a><\/noindex>.
\nNa zachovanie sp\u00e4tnej kompatibility sa odpor\u00fa\u010da pou\u017e\u00edva\u0165 bal\u00edk iptables-nft<\/a><\/noindex>, ktor\u00fd poskytuje n\u00e1stroje so rovnakou syntaxou pr\u00edkazov\u00e9ho riadku ako v iptables, ale preklad\u00e1 prijat\u00e9 pravidl\u00e1 do bajtk\u00f3du nf_tables. Zmena sa pl\u00e1nuje zahrn\u00fa\u0165 do jesenn\u00e9ho vydania Ubuntu 20.10.<\/p>\n

Toto je druh\u00fd pokus prechodu Ubuntu na nftables. Prv\u00fd pokus bol vykonan\u00fd minul\u00fd rok, ale bol odmietnut\u00fd kv\u00f4li nekompatibilite s n\u00e1strojmi LXD<\/a><\/noindex>. Teraz m\u00e1 LXD u\u017e existuje<\/a><\/noindex> zabudovan\u00fa podporu nftables a m\u00f4\u017ee pracova\u0165 s nov\u00fdm backendom pre filtr\u00e1ciu paketov. Pre pou\u017e\u00edvate\u013eov, ktor\u00fdm nesta\u010d\u00ed vrstva na zabezpe\u010denie kompatibility, bolo<\/a><\/noindex> je mo\u017enos\u0165 nain\u0161talova\u0165 klasick\u00e9 n\u00e1stroje iptables, ip6tables, arptables a ebtables so star\u00fdm backendom.<\/p>\n

Pripom\u00edname, \u017ee v paketovom filtri nftables<\/a><\/noindex> s\u00fa unifikovan\u00e9 rozhrania filtr\u00e1cie paketov pre IPv4, IPv6, ARP a sie\u0165ov\u00e9 mosty. V paket nftables patr\u00ed komponenty paketov\u00e9ho filtra, ktor\u00e9 pracuj\u00fa v u\u017e\u00edvate\u013eskom priestore, zatia\u013e \u010do na \u00farovni jadra zabezpe\u010duje pr\u00e1cu subsyst\u00e9m nf_tables, s\u00fa\u010das\u0165 jadra Linux od verzie 3.13. Na \u00farovni jadra je poskytnut\u00e9 iba v\u0161eobecn\u00e9 rozhranie, nez\u00e1visl\u00e9 od konkr\u00e9tneho protokolu a poskytuj\u00face z\u00e1kladn\u00e9 funkcie na extrakciu \u00fadajov z paketov, vykon\u00e1vanie oper\u00e1ci\u00ed s \u00fadajmi a riadenie toku. <\/p>\n

Samotn\u00e9 pravidl\u00e1 filtr\u00e1cie a \u0161pecifick\u00e9 pre protokoly spracovatelia sa kompiluj\u00fa do bajtk\u00f3du v u\u017e\u00edvate\u013eskom priestore, po \u010dom sa tento bajtk\u00f3d nahr\u00e1va do jadra pomocou rozhrania Netlink a vykon\u00e1va sa v jadre v \u0161peci\u00e1lnej virtu\u00e1lnej machine, pripom\u00ednaj\u00facej BPF (Berkeley Packet Filters). Tak\u00fdto pr\u00edstup umo\u017e\u0148uje v\u00fdrazne zn\u00ed\u017ei\u0165 ve\u013ekos\u0165 k\u00f3du filtr\u00e1cie, ktor\u00fd funguje na \u00farovni jadra a vy\u010dleni\u0165 v\u0161etky funkcie anal\u00fdzy pravidiel a logiky pr\u00e1ce s protokolmi do u\u017e\u00edvate\u013esk\u00e9ho priestoru.<\/p>\n

<\/a><\/noindex><\/p>\n

Zdroj: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0421\u043b\u0435\u0434\u043e\u043c \u0437\u0430 Fedora \u0438 Debian \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 Ubuntu \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u044e\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0430 \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043f\u0430\u043a\u0435\u0442\u043d\u043e\u0433\u043e \u0444\u0438\u043b\u044c\u0442\u0440\u0430 nftables. \u0414\u043b\u044f \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043e\u0431\u0440\u0430\u0442\u043d\u043e\u0439 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u0442\u0441\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043f\u0430\u043a\u0435\u0442 iptables-nft, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u0443\u0442\u0438\u043b\u0438\u0442\u044b \u0441 \u0442\u0435\u043c \u0436\u0435 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441\u043e\u043c \u043a\u043e\u043c\u0430\u043d\u0434\u043d\u043e\u0439 \u0441\u0442\u0440\u043e\u043a\u0438, \u043a\u0430\u043a \u0438 \u0432 iptables, \u043d\u043e \u0442\u0440\u0430\u043d\u0441\u043b\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u043d\u044b\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u0432 \u0431\u0430\u0439\u0442\u043a\u043e\u0434 nf_tables. \u0418\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u043f\u043b\u0430\u043d\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u043e\u0441\u0435\u043d\u043d\u0435\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 Ubuntu 20.10. \u042d\u0442\u043e \u0432\u0442\u043e\u0440\u0430\u044f […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-92493","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\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\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47V Ubuntu 20.10 pl\u00e1nuj\u00fa prechod z iptables na nftables | ProHoster","description":"Nasleduje po Federe","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/news\/v-ubuntu-20-10-planiruyut-perejti-s-iptables-na-nftables","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sk_SK","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\u0412 Ubuntu 20.10 \u043f\u043b\u0430\u043d\u0438\u0440\u0443\u044e\u0442 \u043f\u0435\u0440\u0435\u0439\u0442\u0438 \u0441 iptables \u043d\u0430 nftables | ProHoster","og:description":"\u0421\u043b\u0435\u0434\u043e\u043c \u0437\u0430 Fedora \u0438","og:url":"https:\/\/prohoster.info\/sk\/blog\/news\/v-ubuntu-20-10-planiruyut-perejti-s-iptables-na-nftables","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2020-08-27T17:42:43+00:00","article:modified_time":"2020-08-27T17:42:43+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"92493","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-02-28 12:07:40","updated":"2022-09-30 05:58:52","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/92493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/comments?post=92493"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/92493\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media?parent=92493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/categories?post=92493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/tags?post=92493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}