{"id":122015,"date":"2025-02-20T14:22:14","date_gmt":"2025-02-20T12:22:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-netflow-ipfix-sflow-kollektora-xenoeye-25-02"},"modified":"2025-02-20T14:22:14","modified_gmt":"2025-02-20T12:22:15","slug":"vypusk-netflow-ipfix-sflow-kollektora-xenoeye-25-02","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-netflow-ipfix-sflow-kollektora-xenoeye-25-02","title":{"rendered":"Vyd\u00e1n\u00ed sb\u011bra\u010de Netflow\/IPFIX\/sFlow Xenoeye 25.02","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byla zve\u0159ejn\u011bna verze sb\u011bra\u010de Netflow\/IPFIX\/sFlow Xenoeye 25.02. Sb\u011bra\u010d umo\u017e\u0148uje shroma\u017e\u010fovat ze r\u016fzn\u00fdch s\u00ed\u0165ov\u00fdch za\u0159\u00edzen\u00ed statistiky o toku provozu, kter\u00e9 se p\u0159en\u00e1\u0161ej\u00ed pomoc\u00ed protokol\u016f Netflow v5, v9, IPFIX a sFlow, zpracov\u00e1vat data, generovat zpr\u00e1vy a vytv\u00e1\u0159et grafy. J\u00e1dro projektu je naps\u00e1no v jazyce C, k\u00f3d je \u0161\u00ed\u0159en pod licenc\u00ed ISC.    <\/p>\n<p>Sb\u011bra\u010d agreguje s\u00ed\u0165ov\u00fd provoz podle vybran\u00fdch pol\u00ed a exportuje data do PostgreSQL. Na z\u00e1klad\u011b t\u011bchto dat lze vytv\u00e1\u0159et zpr\u00e1vy, grafy (pou\u017eit\u00edm gnuplot, skripty v Pythonu + Matplotlib) nebo panely v Grafan\u011b. Krom\u011b toho sb\u011bra\u010d m\u016f\u017ee spou\u0161t\u011bt u\u017eivatelsk\u00e9 skripty p\u0159i p\u0159ekro\u010den\u00ed prahov\u00fdch hodnot nebo p\u0159i poklesu provozu pod prahov\u00e9 hodnoty.   <center><img decoding=\"async\" alt=\"Vyd\u00e1n\u00ed sb\u011bra\u010de Netflow\/IPFIX\/sFlow Xenoeye 25.02\" src=\"\/wp-content\/uploads\/2025\/02\/14036e9ad0314171ccf650634a98353e.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>Pro v\u00fdpo\u010det aktu\u00e1ln\u00ed rychlosti provozu se pou\u017e\u00edvaj\u00ed klouzav\u00e9 pr\u016fm\u011bry. Mechanismus sledov\u00e1n\u00ed p\u0159ekro\u010den\u00ed prah\u016f je ur\u010den k upozorn\u011bn\u00ed na DoS\/DDoS \u00fatoky a k aktivaci potla\u010den\u00ed pomoc\u00ed BGP ozn\u00e1men\u00ed (Flowspec nebo Blackhole). Spole\u010dn\u011b se sb\u011bra\u010dem je dod\u00e1n p\u0159\u00edklad skriptu Telegram bota, kter\u00fd m\u016f\u017ee upozor\u0148ovat na anom\u00e1lie v messengeru. Sb\u011bra\u010d nen\u00ed n\u00e1ro\u010dn\u00fd na zdroje, m\u016f\u017ee zpracov\u00e1vat provoz mal\u00fdch s\u00edt\u00ed na Raspberry\/Orange Pi nebo ve virtu\u00e1ln\u00edm stroji s 2-4 GB RAM.      <\/p>\n<p>Zm\u011bny v nov\u00e9 verzi:  <\/p>\n<ul>\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora protokolu sFlow, pro kter\u00fd byla realizov\u00e1na mo\u017enost analyzovat obsah (payload) s\u00ed\u0165ov\u00fdch paket\u016f a extrahovat z n\u011bj informace o DNS a TLS (HTTPS) SNI. Poskytovatel\u00e9 hostingu a vlastn\u00edci datov\u00fdch center mohou tuto funkci vyu\u017e\u00edt k boji proti phishingu a k ur\u010den\u00ed toho, jak\u00e9 <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/domain\/\"   title=\"dom\u00e9ny\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4065\">dom\u00e9ny<\/a> a webov\u00e9 str\u00e1nky jsou hostov\u00e1ny v s\u00edti.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora pro vno\u0159en\u00e9 \/ hierarchick\u00e9 objekty monitorov\u00e1n\u00ed, co\u017e usnad\u0148uje n\u011bkter\u00e9 konfigurace s velk\u00fdm mno\u017estv\u00edm objekt\u016f a zvy\u0161uje v\u00fdkon zpracov\u00e1n\u00ed ve srovn\u00e1n\u00ed s \u201eploch\u00fdm\u201c seznamem monitorovac\u00edch objekt\u016f.\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost klasifikace rozhran\u00ed \u2014 provoz vybran\u00fdch s\u00ed\u0165ov\u00fdch rozhran\u00ed sm\u011brova\u010d\u016f nebo p\u0159ep\u00edna\u010d\u016f lze ignorovat nebo zpracov\u00e1vat zvl\u00e1\u0161tn\u00edm zp\u016fsobem.\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost sledovat nejen n\u00e1r\u016fst provozu, ale tak\u00e9 pokles pod prahov\u00e9 hodnoty, co\u017e m\u016f\u017ee b\u00fdt u\u017eite\u010dn\u00e9 pro nep\u0159\u00edm\u00e9 monitorov\u00e1n\u00ed jednotliv\u00fdch <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/\"   title=\"servery\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1750\">servery<\/a> nebo slu\u017eeb.\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost m\u011bnit prahov\u00e9 hodnoty provozu bez restartov\u00e1n\u00ed sb\u011bra\u010de. Tento mechanismus je ur\u010den pro situace, kdy u\u017eivatel\u00e9 automaticky vypo\u010d\u00edt\u00e1vaj\u00ed prahov\u00e9 hodnoty na z\u00e1klad\u011b statistik z p\u0159edchoz\u00edch obdob\u00ed a pravideln\u011b aktualizuj\u00ed prahy ve sb\u011bra\u010di.\n<li class=\"l\"> Byl p\u0159id\u00e1n LXC kontejner pro rychl\u00e9 nasazen\u00ed a testov\u00e1n\u00ed sb\u011bra\u010de. Sou\u010d\u00e1st\u00ed kontejneru je sb\u011bra\u010d s p\u0159edinstalovan\u00fdmi objekty monitorov\u00e1n\u00ed, PostgreSQL a Grafana.  <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62757\">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 \u0440\u0435\u043b\u0438\u0437 Netflow\/IPFIX\/sFlow \u043a\u043e\u043b\u043b\u0435\u043a\u0442\u043e\u0440\u0430 Xenoeye 25.02. \u041a\u043e\u043b\u043b\u0435\u043a\u0442\u043e\u0440 \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 v5, v9, IPFIX \u0438 sFlow, \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. \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. \u041a\u043e\u043b\u043b\u0435\u043a\u0442\u043e\u0440 \u0430\u0433\u0440\u0435\u0433\u0438\u0440\u0443\u0435\u0442 \u0441\u0435\u0442\u0435\u0432\u043e\u0439 \u0442\u0440\u0430\u0444\u0438\u043a \u043f\u043e \u0432\u044b\u0431\u0440\u0430\u043d\u043d\u044b\u043c \u043f\u043e\u043b\u044f\u043c \u0438 \u044d\u043a\u0441\u043f\u043e\u0440\u0442\u0438\u0440\u0443\u0435\u0442 \u0434\u0430\u043d\u043d\u044b\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":122016,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-122015","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" 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