{"id":107818,"date":"2023-04-13T00:48:12","date_gmt":"2023-04-12T22:48:12","guid":{"rendered":"https:\/\/prohoster.info\/?p=107818"},"modified":"2023-04-13T08:25:11","modified_gmt":"2023-04-13T06:25:11","slug":"opublikovan-netflow-kollektor-xenoeye","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/opublikovan-netflow-kollektor-xenoeye","title":{"rendered":"Netflow-samleren Xenoeye er offentliggjort.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Netflow-samleren Xenoeye er tilg\u00e6ngelig, hvilket g\u00f8r det muligt at samle trafikstr\u00f8mstatistik fra forskellige netv\u00e6rksenheder, der overf\u00f8res ved hj\u00e6lp af protokollerne Netflow v9 og IPFIX, behandle data, generere rapporter og oprette grafer. Derudover kan samleren k\u00f8re brugerdefinerede scripts, n\u00e5r t\u00e6rskler overskrides. Projektets kerne er skrevet i C, og koden distribueres under ISC-licensen.    <\/p>\n<p>Funktioner ved samleren:  <\/p>\n<ul>\n<li class=\"l\"> De aggregerede data baseret p\u00e5 de n\u00f8dvendige Netflow-felter eksporteres til PostgreSQL. Forudg\u00e5ende aggregering finder sted inden i samleren.\n<li class=\"l\"> Ud af boksen underst\u00f8ttes kun det grundl\u00e6ggende s\u00e6t af Netflow-felter, men n\u00e6sten ethvert felt kan tilf\u00f8jes.\n<li class=\"l\"> Ydeevne af indsamleren afh\u00e6nger af arten af trafikken og rapporterne, og kan n\u00e5 flere hundrede tusinde \"flows per second\" p\u00e5 \u00e9n CPU. Modellen for belastningsfordeling \u2014 pr. enhed (router) pr. flow.\n<li class=\"l\"> Samleren bruger glidende gennemsnit til at beregne overskridelse af trafik hastighed.\n<li class=\"l\"> Samleren kan bruges til at finde inficerede v\u00e6rter (der sender spam-e-mails, HTTP(S)-flood, SSH-scannere) og til at identificere pludselige stigninger under DoS\/DDoS-angreb.\n<li class=\"l\"> Netv\u00e6rksrapporter kan visualiseres ved hj\u00e6lp af forskellige v\u00e6rkt\u00f8jer: gnuplot, Python-scripts + Matplotlib, ved brug af Grafana.\n<li class=\"l\"> I mods\u00e6tning til mange moderne samlere anvender projektet ikke Apache Kafka, Elastic osv., de prim\u00e6re beregninger foreg\u00e5r inden i selve samleren.  <\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=58958\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d Netflow-\u043a\u043e\u043b\u043b\u0435\u043a\u0442\u043e\u0440 Xenoeye, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u0438\u0440\u0430\u0442\u044c \u0441 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u0441\u0442\u0430\u0442\u0438\u0441\u0442\u0438\u043a\u0443 \u043e \u043f\u043e\u0442\u043e\u043a\u0430\u0445 \u0442\u0440\u0430\u0444\u0438\u043a\u0430, \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u0435\u043c\u0443\u044e \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 Netflow v9 \u0438 IPFIX, \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0442\u044c \u0434\u0430\u043d\u043d\u044b\u0435, \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043e\u0442\u0447\u0451\u0442\u044b \u0438 \u0441\u0442\u0440\u043e\u0438\u0442\u044c \u0433\u0440\u0430\u0444\u0438\u043a\u0438. \u041a\u0440\u043e\u043c\u0435 \u044d\u0442\u043e\u0433\u043e, \u043a\u043e\u043b\u043b\u0435\u043a\u0442\u043e\u0440 \u043c\u043e\u0436\u0435\u0442 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0442\u044c \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0435 \u0441\u043a\u0440\u0438\u043f\u0442\u044b \u043f\u0440\u0438 \u043f\u0440\u0435\u0432\u044b\u0448\u0435\u043d\u0438\u0438 \u043f\u043e\u0440\u043e\u0433\u043e\u0432. \u042f\u0434\u0440\u043e \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043e \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421, \u043a\u043e\u0434 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 ISC. \u041e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u043a\u043e\u043b\u043b\u0435\u043a\u0442\u043e\u0440\u0430: \u0410\u0433\u0440\u0435\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u043f\u043e \u043d\u0443\u0436\u043d\u044b\u043c [&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-107818","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d 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