{"id":104807,"date":"2022-08-10T15:37:46","date_gmt":"2022-08-10T13:37:46","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-paketnogo-filtra-nftables-1-0-5"},"modified":"2022-08-10T15:37:46","modified_gmt":"2022-08-10T13:37:46","slug":"vypusk-paketnogo-filtra-nftables-1-0-5","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/vypusk-paketnogo-filtra-nftables-1-0-5","title":{"rendered":"Nftables paketifiltri 1.0.5 v\u00e4ljaanne","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ilmus v\u00e4lja nftablesi pakettfiltri 1.0.5 versioon, mis \u00fchtlustab pakettide filtreerimise liidesed IPv4, IPv6, ARP ja v\u00f5rgusildade jaoks (sihtpunkt on iptablesi, ip6table'i, arptablesi ja ebtablesi asendamine). Samuti ilmus koos selle versiooniga libnftnl 1.2.3 versioon, mis pakub madala taseme API-d nf_tables s\u00fcsteemiga suhtlemiseks.       <\/p>\n<p>Nftables'i paketti kuuluvad kasutajaruumi t\u00f6\u00f6tavad pakettfilteri komponendid, samas kui tuuma tasemel tagab t\u00f6\u00f6 nf_tables s\u00fcsteem, mis on osa Linuxi tuumast alates versioonist 3.13. Tuuma tasemel pakutakse vaid \u00fcldist liidest, mis ei s\u00f5ltu konkreetsest protokollist ja pakub p\u00f5hifunktsioone andmete v\u00e4ljav\u00f5tmiseks pakettidest, andmetega t\u00f6\u00f6tamiseks ja voogude haldamiseks.    <\/p>\n<p>Filtreerimise reeglid ja protokollile spetsiifilised t\u00f6\u00f6tlejad kompileeritakse kasutajaruumi baidikoodiks, seej\u00e4rel laaditakse see baidikood tuuma Netlink liidese abil ja t\u00e4idetakse tuumas spetsiaalses <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/vps\/abuzoustojchivye-vps\/\"   title=\"virtuaalses masinas\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4326\">virtuaalses masinas<\/a>, mis meenutab BPF-i (Berkeley Packet Filters). Selline l\u00e4henemine v\u00f5imaldab oluliselt v\u00e4hendada tuuma tasemel t\u00f6\u00f6tava filtreerimiskoodi suurust ja viia k\u00f5ik reeglite t\u00f5lgendamise ja protokollidega t\u00f6\u00f6tamise funktsioonid kasutajaruumi.    <\/p>\n<p>Peamised muudatused:  <\/p>\n<ul>\n<li class=\"l\"> Reeglite optimeerija, mis kutsutakse esile, kui on m\u00e4\u00e4ratud valik &#171;-o\/&#8212;optimize&#187;, lahendab probleemid reeglite, map- ja set-loendite \u00fchendamisega.          # cat ruleset.nft       table ip x {              chain y {                      type nat hook postrouting priority srcnat; policy drop;                      ip saddr 1.1.1.1 tcp dport 8000 snat to 4.4.4.4:80                      ip saddr 2.2.2.2 tcp dport 8001 snat to 5.5.5.5:90              }       }         # nft -o -c -f ruleset.nft       \u00dchendamine:       ruleset.nft:4:3-52:                ip saddr 1.1.1.1 tcp dport 8000 snat to 4.4.4.4:80       ruleset.nft:5:3-52:                ip saddr 2.2.2.2 tcp dport 8001 snat to 5.5.5.5:90       sisse:              snat to ip saddr . tcp dport map { 1.1.1.1 . 8000 : 4.4.4.4 . 80, 2.2.2.2 . 8001 : 5.5.5.5 . 90 }\n<li class=\"l\"> Ethernet ja vlan-elementide \u00fchendamisel on tagatud d\u00fcnaamilise set-nimekirja m\u00e4\u00e4ramine, mis t\u00e4idetakse paketi marsruudi parameetrite p\u00f5hjal.         add table netdev x       add chain netdev x y { type filter hook ingress device enp0s25 priority 0;   }       add set netdev x macset { typeof ether daddr . vlan id; flags   dynamic,timeout; }       add rule netdev x y update @macset { ether daddr . vlan id timeout 60s }            add rule netdev x y ether saddr . vlan id { 0a:0b:0c:0d:0e:0f . 42,   0a:0b:0c:0d:0e:0f . 4095 } counter accept\n<li class=\"l\"> Reeglite kuvamine on seadistatud map-loenditega, mis sisaldavad maskide nimesid.         table inet filter {          chain INPUT {              iifname vmap {                  &#171;eth0&#187; : jump input_lan,                  &#171;wg*&#187; : jump input_vpn              }          }          chain input_lan {}          chain input_vpn {}       }\n<li class=\"l\"> Tagasil\u00f6\u00f6kidega seonduvad muudatused on k\u00f5rvaldatud, mis p\u00f5hjustasid korrektsete reeglite vale lexikaalset anal\u00fc\u00fcsi.\n<li class=\"l\"> Lahendatud on probleemid, mis on seotud suurte nimekirjade aeglase t\u00f6\u00f6tlemise ja automaatse \u00fchendamisega, millega on m\u00e4\u00e4ratud v\u00e4\u00e4rtuste intervallid.\n<li class=\"l\"> Asetuse l\u00f5petamine probleemsete elementide lisamisel vale set-nimekirja on k\u00f5rvaldatud.    <\/ul>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57619\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0430\u043a\u0435\u0442\u043d\u043e\u0433\u043e \u0444\u0438\u043b\u044c\u0442\u0440\u0430 nftables 1.0.5, \u0443\u043d\u0438\u0444\u0438\u0446\u0438\u0440\u0443\u044e\u0449\u0435\u0433\u043e \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u044b \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u0438 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0434\u043b\u044f IPv4, IPv6, ARP \u0438 \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u043c\u043e\u0441\u0442\u043e\u0432 (\u043d\u0430\u0446\u0435\u043b\u0435\u043d \u043d\u0430 \u0437\u0430\u043c\u0435\u043d\u0443 iptables, ip6table, arptables \u0438 ebtables). \u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0441\u043e\u043f\u0443\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 libnftnl 1.2.3, 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[&hellip;]<\/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-104807","post","type-post","status-publish","format-standard","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=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0430\u043a\u0435\u0442\u043d\u043e\u0433\u043e \u0444\u0438\u043b\u044c\u0442\u0440\u0430 nftables 1.0.5, \u0443\u043d\u0438\u0444\u0438\u0446\u0438\u0440\u0443\u044e\u0449\u0435\u0433\u043e \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u044b \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u0438 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0434\u043b\u044f IPv4, 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