{"id":38916,"date":"2019-10-31T22:26:43","date_gmt":"2019-10-31T19:26:43","guid":{"rendered":"https:\/\/prohoster.info\/blog\/v-debian-11-predlagaetsya-po-umolchaniyu-zadejstvovat-nftables-i-firewalld\/"},"modified":"2019-10-31T22:26:43","modified_gmt":"2019-10-31T19:26:43","slug":"v-debian-11-predlagaetsya-po-umolchaniyu-zadejstvovat-nftables-i-firewalld","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/v-debian-11-predlagaetsya-po-umolchaniyu-zadejstvovat-nftables-i-firewalld","title":{"rendered":"I Debian 11 foresl\u00e5s det som standard at aktivere nftables og firewalld","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Arturo Borrero, Debian-udvikler og medlem af Coreteam for Netfilter-projektet, som vedligeholder pakker relateret til nftables, iptables og netfilter i Debian. et h\u00e5ndskrevet patch til rettelsen.<\/a><\/noindex> overs\u00e6tte den n\u00e6ste betydelige udgave af Debian 11 til at bruge nftables som standard. Hvis forslaget godkendes, vil pakkerne med iptables blive betragtet som valgfri funktioner, der ikke er inkluderet i basispakken.<\/p>\n

Nftables-pakke filtreringssystemet er bem\u00e6rkelsesv\u00e6rdigt for at forene filtreringsgr\u00e6nsefladerne for IPv4, IPv6, ARP og netv\u00e6rksbroer. Nftables giver kun et generelt interface p\u00e5 kernelniveau, der ikke afh\u00e6nger af en specifik protokol og tilbyder grundl\u00e6ggende funktioner til at ekstrahere data fra pakker, udf\u00f8re databehandling og styre str\u00f8mmen. Den specifikke filtreringslogik og protokol-specifikke behandlere kompileres til bytekode i brugerrummet, hvorefter denne bytekode indl\u00e6ses i kernen via Netlink-interfacet og k\u00f8res i en s\u00e6rlig virtuel maskine, der ligner BPF (Berkeley Packet Filters). <\/p>\n

Som standard i Debian 11 foresl\u00e5s det ogs\u00e5 at aktivere den dynamiske firewall firewalld, pr\u00e6senteret som et wrapper over nftables. Firewalld k\u00f8rer som en baggrundsproces, hvilket g\u00f8r det muligt at \u00e6ndre reglerne for pakke filtrering dynamisk via DBus, uden at det er n\u00f8dvendigt at genstarte reglerne eller afbryde etablerede forbindelser. Til at styre firewallen bruges v\u00e6rkt\u00f8jet firewall-cmd, der ved oprettelse af regler ikke tager udgangspunkt i IP-adresser<\/a>, netv\u00e6rksgr\u00e6nseflader og portnumre samt tjenestenavne (for eksempel, for at \u00e5bne adgang til SSH skal du udf\u00f8re «firewall-cmd —add —service=ssh», for at lukke SSH — «firewall-cmd —remove —service=ssh»).<\/p>\n

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

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

\u0410\u0440\u0442\u0443\u0440\u043e \u0411\u043e\u0440\u0440\u0435\u0440\u043e (Arturo Borrero), \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a Debian, \u0432\u0445\u043e\u0434\u044f\u0449\u0438\u0439 \u0432 Coreteam \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Netfilter \u0438 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u0439 \u0432 Debian \u043f\u0430\u043a\u0435\u0442\u044b, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 nftables, iptables \u0438 netfilter, \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b \u043f\u0435\u0440\u0435\u0432\u0435\u0441\u0442\u0438 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430 Debian 11 \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 nftables \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e. \u0412 \u0441\u043b\u0443\u0447\u0430\u0435 \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0438\u044f \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u043f\u0430\u043a\u0435\u0442\u044b \u0441 iptables \u0431\u0443\u0434\u0443\u0442 \u043f\u0435\u0440\u0435\u0432\u0435\u0434\u0435\u043d\u044b \u0432 \u0440\u0430\u0437\u0440\u044f\u0434 \u043d\u0435\u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u043e\u043f\u0446\u0438\u0439, \u043d\u0435 \u0432\u0445\u043e\u0434\u044f\u0449\u0438\u0445 \u0432 \u0431\u0430\u0437\u043e\u0432\u0443\u044e \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0443. \u041f\u0430\u043a\u0435\u0442\u043d\u044b\u0439 \u0444\u0438\u043b\u044c\u0442\u0440 […]<\/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-38916","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\udd47I Debian 11 foresl\u00e5s det at aktivere nftables og firewalld som standard | ProHoster","description":"Arturo Borrero, Debian-udvikler og medlem af Coreteam for Netfilter-projektet, som vedligeholder pakker relateret til nftables, iptables og netfilter i 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