{"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\/es\/blog\/news\/v-ubuntu-20-10-planiruyut-perejti-s-iptables-na-nftables","title":{"rendered":"En Ubuntu 20.10 se planea pasar de iptables a nftables","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Siguiendo a Fedora<\/a><\/noindex> y Debian<\/a><\/noindex> los desarrolladores de Ubuntu est\u00e1n considerando la posibilidad<\/a><\/noindex> la transici\u00f3n hacia el uso predeterminado del filtro de paquetes nftables<\/a><\/noindex>.
\nPara mantener la retrocompatibilidad, se propone utilizar el paquete iptables-nft<\/a><\/noindex>, que proporciona utilidades con la misma sintaxis de l\u00ednea de comandos que en iptables, pero traduce las reglas recibidas a bytecode nf_tables. Se planea incluir este cambio en el lanzamiento de oto\u00f1o de Ubuntu 20.10.<\/p>\n

Este es el segundo intento de Ubuntu de adoptar nftables. El primer intento se realiz\u00f3 el a\u00f1o pasado, pero fue rechazado debido a incompatibilidades con las herramientas LXD<\/a><\/noindex>. Ahora en LXD ya tenemos<\/a><\/noindex> hay soporte integrado para nftables y puede trabajar con el nuevo backend para filtrado de paquetes. Para los usuarios que no est\u00e1n satisfechos con la capa de compatibilidad, se dej\u00f3<\/a><\/noindex> existe la posibilidad de instalar las utilidades cl\u00e1sicas iptables, ip6tables, arptables y ebtables con el viejo backend.<\/p>\n

Recordemos que en el filtro de paquetes nftables<\/a><\/noindex> se unifican las interfaces de filtrado de paquetes para IPv4, IPv6, ARP y puentes de red. El paquete nftables incluye componentes del filtro de paquetes que operan en el espacio de usuario, mientras que a nivel del n\u00facleo, la subcapacidad nf_tables, incluida en el n\u00facleo de Linux desde la versi\u00f3n 3.13, se encarga de la ejecuci\u00f3n. A nivel de n\u00facleo, solo se brinda una interfaz com\u00fan, independiente del protocolo espec\u00edfico, que ofrece funciones b\u00e1sicas para extraer datos de los paquetes, realizar operaciones con los datos y gestionar el flujo. <\/p>\n

Las reglas de filtrado propiamente dichas y los controladores espec\u00edficos de protocolos se compilan en bytecode en el espacio de usuario, y este bytecode se carga en el n\u00facleo a trav\u00e9s de la interfaz Netlink y se ejecuta en el n\u00facleo en una m\u00e1quina virtual especial que recuerda a BPF (Berkeley Packet Filters). Este enfoque permite reducir significativamente el tama\u00f1o del c\u00f3digo de filtrado que opera a nivel del n\u00facleo y trasladar todas las funciones de an\u00e1lisis de reglas y l\u00f3gica de trabajo con protocolos al espacio de usuario.<\/p>\n

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

Fuente: 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\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\udd47 En Ubuntu 20.10 se planea pasar de iptables a nftables | ProHoster","description":"Siguiendo a Fedora y","canonical_url":"https:\/\/prohoster.info\/es\/blog\/news\/v-ubuntu-20-10-planiruyut-perejti-s-iptables-na-nftables","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"es_ES","og:site_name":"ProHoster | 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