{"id":37675,"date":"2019-10-31T22:18:59","date_gmt":"2019-10-31T19:18:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/opublikovan-dhcp-server-kea-1-6-razvivaemyj-konsortsiumom-isc\/"},"modified":"2019-10-31T22:18:59","modified_gmt":"2019-10-31T19:18:59","slug":"opublikovan-dhcp-server-kea-1-6-razvivaemyj-konsortsiumom-isc","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/opublikovan-dhcp-server-kea-1-6-razvivaemyj-konsortsiumom-isc","title":{"rendered":"DHCP-serveret Kea 1.6 er offentliggjort, udviklet af ISC-konsortiet","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>ISC-konsortiet <noindex><a rel=\"nofollow\" href=\"https:\/\/www.isc.org\/blogs\/kea-1-6\/\">udgav<\/a><\/noindex> udgivelse af DHCP-server <noindex><a rel=\"nofollow\" href=\"http:\/\/kea.isc.org\">Kea 1.6.0<\/a><\/noindex>, der erstatter den klassiske ISC DHCP. Kildekoderne til projektet <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/isc-projects\/kea\">distribueres<\/a><\/noindex> under licens <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=32726\">Mozilla Public License (MPL) 2.0<\/a><\/noindex>, i stedet for den tidligere anvendte ISC License til ISC DHCP. <\/p>\n<p>DHCP-serveret Kea er baseret p\u00e5 teknologierne fra BIND 10 og <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=36235\">bygget<\/a><\/noindex> ved hj\u00e6lp af en modul\u00e6r arkitektur, der indeb\u00e6rer opdeling af funktionalitet i forskellige behandlerprocesser. Produktet inkluderer en fuld funktionsdygtig serverimplementering med underst\u00f8ttelse af protokoller DHCPv4 og DHCPv6, der kan erstatte ISC DHCP. Kea har indbyggede v\u00e6rkt\u00f8jer til dynamisk opdatering af DNS-zoner (Dynamic DNS), underst\u00f8tter mekanismer til serveropdagelse, adresseallokering, opdatering og genforbindelse, behandling af informationsforesp\u00f8rgsler, adresse-reservationer for v\u00e6rter og PXE-booting. I DHCPv6-implementeringen er der desuden mulighed for pr\u00e6fikserdelegation. Til interaktion med eksterne applikationer er der et specielt API. Konfigurationen kan opdateres i realtid uden genstart af serveren.<\/p>\n<p>Oplysninger om dedikerede adresser og kundeparametre kan opbevares i forskellige typer lagre \u2014 der tilbydes i \u00f8jeblikket backends til opbevaring i CSV-filer, MySQL-databaser, Apache Cassandra og PostgreSQL. Host reservemuligheder kan angives i en konfigurationsfil i JSON-format eller som en tabel i MySQL og PostgreSQL. V\u00e6rkt\u00f8jet perfdhcp er inkluderet til at m\u00e5le ydeevnen af DHCP-serveren og komponenter til indsamling af statistik. Kea viser en god ydeevne; for eksempel kan serveren ved brug af MySQL backend udf\u00f8re 1000 adresse tildelinger pr. sekund (omtrent 4000 pakker pr. sekund), og ved brug af memfile backend n\u00e5r ydeevnen op p\u00e5 7500 tildelinger pr. sekund.<\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"http:\/\/bind10.isc.org\/raw-attachment\/wiki\/DesignDiagrams\/Overview-DHCP-2013-01-16.png\"><img decoding=\"async\" alt=\"DHCP-serveret Kea 1.6 er offentliggjort, udviklet af ISC-konsortiet \" src=\"\/wp-content\/uploads\/2019\/09\/506faa6784a89a80eb89611b1cc11a24.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>N\u00f8glepunkter <noindex><a rel=\"nofollow\" href=\"https:\/\/ftp.isc.org\/isc\/kea\/1.6.0\/Kea160ReleaseNotes.txt\">forbedringer<\/a><\/noindex> i Kea 1.6:<\/p>\n<ul>\n<li class=\"l\"> Backend-konfigurationen (CB, Configuration Backend) er blevet implementeret, hvilket g\u00f8r det muligt at centralt administrere indstillingerne for flere DHCPv4- og DHCPv6-servere. Backenden kan anvendes til at opbevare de fleste Kea-indstillinger, herunder globale parametre, information om delte netv\u00e6rk, subnet, indstillinger, puljer og option definitioner. I stedet for at opbevare alle disse indstillinger i en lokal konfigurationsfil, kan de nu placeres i en ekstern database. Det er muligt at definere ikke alle, men kun en del af indstillingerne via CB med overlappende parametre fra den eksterne database og lokale konfigurationsfiler (for eksempel kan indstillinger for netv\u00e6rksinterfaces forblive i de lokale filer).\n<p>Kun MySQL underst\u00f8ttes som database til opbevaring af konfigurationen (til opbevaring af adresseleje (leases) kan MySQL, PostgreSQL og Cassandra anvendes, mens MySQL og PostgreSQL kan anvendes til hostreservation). Konfigurationen i databasen kan \u00e6ndres b\u00e5de gennem direkte adgang til databasen og via specielt forberedte bibliotekslag, der tilbyder et standard s\u00e6t kommandoer til at administrere konfigurationen, s\u00e5som at tilf\u00f8je og fjerne parametre, bindinger, DHCP-ops\u00e6tninger og subnet.<\/p>\n<li class=\"l\"> En ny klasse af h\u00e5ndterere \"DROP\" er tilf\u00f8jet (alle pakker relateret til klassen DROP kasseres straks), som kan bruges til at kassere u\u00f8nsket trafik, for eksempel bestemte typer af DHCP-beskeder;\n<li class=\"l\"> Nye parametre max-lease-time og min-lease-time er blevet tilf\u00f8jet, hvilket g\u00f8r det muligt at definere leasingtiden for en adresse til en klient (lease) ikke som en fast v\u00e6rdi, men som et tilladt interval.\n<li class=\"l\"> Kompatibiliteten med enheder, der ikke helt overholder standarderne for DHCP, er blevet forbedret. For at omg\u00e5 problemer sender Kea nu information om typen af DHCPv4-besked i begyndelsen af optionslisten, behandler forskellige repr\u00e6sentationer af v\u00e6rtens navne, genkender transmissionen af et tomt v\u00e6rt navn og tillader at definere sub-options med koder fra 0 til 255.\n<li class=\"l\"> En separat kontrolsocket er blevet tilf\u00f8jet til DDNS-demonen, hvorigennem man direkte kan sende kommandoer og foretage \u00e6ndringer i konfigurationen. F\u00f8lgende kommandoer underst\u00f8ttes: build-report, config-get, config-reload, config-set, config-test, config-write, list-commands, shutdown og version-get.\n<li class=\"l\"> L\u00f8st <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/08\/29\/\">s\u00e5rbarheder<\/a><\/noindex> (CVE-2019-6472, CVE-2019-6473, CVE-2019-6474), som kan bruges til at for\u00e5rsage nedetid (udl\u00f8se nedbrud af serverbehandlere for DHCPv4 og DHCPv6) ved at sende anmodninger med forkert konfigurerede muligheder og v\u00e6rdier. Problematikken udg\u00f8r den st\u00f8rste fare <noindex><a rel=\"nofollow\" href=\"https:\/\/kb.isc.org\/docs\/cve-2019-6474\">CVE-2019-6474<\/a><\/noindex>, hvilket, hvis det bruges til bindinger af memfile-lager, resulterer i, at serverprocessen ikke kan genstartes automatisk, s\u00e5ledes at manuel indgriben fra administratoren kr\u00e6ves (rensning af bindingsdatabasen).\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Kilde: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51393\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043d\u0441\u043e\u0440\u0446\u0438\u0443\u043c ISC \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0440\u0435\u043b\u0438\u0437 DHCP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Kea 1.6.0, \u0438\u0434\u0443\u0449\u0435\u0433\u043e \u043d\u0430 \u0441\u043c\u0435\u043d\u0443 \u043a\u043b\u0430\u0441\u0441\u0438\u0447\u0435\u0441\u043a\u043e\u043c\u0443 ISC DHCP. \u0418\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u044e\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 Mozilla Public License (MPL) 2.0, \u0432\u043c\u0435\u0441\u0442\u043e \u0440\u0430\u043d\u0435\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0439 \u0434\u043b\u044f ISC DHCP \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0438 ISC License. DHCP-\u0441\u0435\u0440\u0432\u0435\u0440 Kea \u043e\u0441\u043d\u043e\u0432\u0430\u043d \u043d\u0430 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u044f\u0445 BIND 10 \u0438 \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043c\u043e\u0434\u0443\u043b\u044c\u043d\u043e\u0439 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b, \u043f\u043e\u0434\u0440\u0430\u0437\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0435\u0439 \u0440\u0430\u0437\u0431\u0438\u0435\u043d\u0438\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043d\u0430 \u0440\u0430\u0437\u043d\u044b\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u044b-\u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438. \u041f\u0440\u043e\u0434\u0443\u043a\u0442 \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":28274,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-37675","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\" content=\"\u041a\u043e\u043d\u0441\u043e\u0440\u0446\u0438\u0443\u043c ISC \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0440\u0435\u043b\u0438\u0437 DHCP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Kea 1.6.0, \u0438\u0434\u0443\u0449\u0435\u0433\u043e.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/da\/blog\/news\/opublikovan-dhcp-server-kea-1-6-razvivaemyj-konsortsiumom-isc\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"da_DK\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d DHCP-\u0441\u0435\u0440\u0432\u0435\u0440 Kea 1.6, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u044b\u0439 \u043a\u043e\u043d\u0441\u043e\u0440\u0446\u0438\u0443\u043c\u043e\u043c ISC | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041a\u043e\u043d\u0441\u043e\u0440\u0446\u0438\u0443\u043c ISC \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0440\u0435\u043b\u0438\u0437 DHCP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Kea 1.6.0, \u0438\u0434\u0443\u0449\u0435\u0433\u043e.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/da\/blog\/news\/opublikovan-dhcp-server-kea-1-6-razvivaemyj-konsortsiumom-isc\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2019-10-31T19:18:59+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2019-10-31T19:18:59+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47DHCP-serveren Kea 1.6, udviklet af konsortiet ISC, er blevet offentliggjort | ProHoster","description":"Konsortiet ISC har offentliggjort version 1.6.0 af DHCP-serveren Kea.","canonical_url":"https:\/\/prohoster.info\/da\/blog\/news\/opublikovan-dhcp-server-kea-1-6-razvivaemyj-konsortsiumom-isc","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"da_DK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d DHCP-\u0441\u0435\u0440\u0432\u0435\u0440 Kea 1.6, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u044b\u0439 \u043a\u043e\u043d\u0441\u043e\u0440\u0446\u0438\u0443\u043c\u043e\u043c ISC | ProHoster","og:description":"\u041a\u043e\u043d\u0441\u043e\u0440\u0446\u0438\u0443\u043c ISC \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0440\u0435\u043b\u0438\u0437 DHCP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Kea 1.6.0, \u0438\u0434\u0443\u0449\u0435\u0433\u043e.","og:url":"https:\/\/prohoster.info\/da\/blog\/news\/opublikovan-dhcp-server-kea-1-6-razvivaemyj-konsortsiumom-isc","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2019-10-31T19:18:59+00:00","article:modified_time":"2019-10-31T19:18:59+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"37675","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-23 18:52:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-03-01 01:22:29","updated":"2026-01-23 18:52:19","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts\/37675","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/comments?post=37675"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts\/37675\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/media\/28274"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/media?parent=37675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/categories?post=37675"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/tags?post=37675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}