{"id":37691,"date":"2019-10-31T22:19:07","date_gmt":"2019-10-31T19:19:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vypusk-powerdns-authoritative-server-4-2\/"},"modified":"2019-10-31T22:19:07","modified_gmt":"2019-10-31T19:19:07","slug":"vypusk-powerdns-authoritative-server-4-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/vypusk-powerdns-authoritative-server-4-2","title":{"rendered":"Lancement de PowerDNS Authoritative Server 4.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/blog.powerdns.com\/2019\/08\/30\/powerdns-authoritative-server-4-2-0\/\">A eu lieu<\/a><\/noindex> lancement d'un serveur DNS autoritaire  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.powerdns.com\/auth.html\">Serveur Autoritaire PowerDNS 4.2<\/a><\/noindex>, destin\u00e9 \u00e0 organiser la diffusion des zones DNS. Par <noindex><a rel=\"nofollow\" href=\"https:\/\/www.powerdns.com\/software.html\">les donn\u00e9es<\/a><\/noindex> les d\u00e9veloppeurs du projet, le Serveur DNS Autoritaire PowerDNS g\u00e8re environ 30% du nombre total de domaines en Europe (si l'on ne consid\u00e8re que les domaines avec des signatures DNSSEC, alors 90%). Le code du projet <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/PowerDNS\/pdns\">est distribu\u00e9<\/a><\/noindex> est sous licence GPLv2.<\/p>\n<p>Le Serveur DNS Autoritaire PowerDNS permet de stocker des informations sur les domaines dans diff\u00e9rentes bases de donn\u00e9es, y compris MySQL, PostgreSQL, SQLite3, Oracle et Microsoft SQL Server, ainsi que dans LDAP et des fichiers texte ordinaires au format BIND. La r\u00e9ponse peut \u00eatre filtr\u00e9e de mani\u00e8re suppl\u00e9mentaire (par exemple, pour \u00e9liminer le spam) ou redirig\u00e9e \u00e0 l'aide de gestionnaires personnalis\u00e9s dans des langages comme Lua, Java, Perl, Python, Ruby, C et C++. Parmi ses caract\u00e9ristiques, on note des outils pour la collecte de statistiques \u00e0 distance, notamment via SNMP ou par l'interm\u00e9diaire d'une API Web (pour les statistiques et la gestion, un serveur http int\u00e9gr\u00e9 est pr\u00e9vu), red\u00e9marrage instantan\u00e9, moteur int\u00e9gr\u00e9 pour connecter des gestionnaires en langage Lua, possibilit\u00e9 d'\u00e9quilibrage de charge en fonction de la localisation g\u00e9ographique du client.<\/p>\n<p>Principales <noindex><a rel=\"nofollow\" href=\"https:\/\/doc.powerdns.com\/authoritative\/changelog\/4.2.html\">nouveaut\u00e9s<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> Ajout de la possibilit\u00e9 <noindex><a rel=\"nofollow\" href=\"https:\/\/doc.powerdns.com\/authoritative\/lua-records\/index.html\">d\u00e9finitions<\/a><\/noindex> d'enregistrements avec des gestionnaires en langage Lua, permettant de cr\u00e9er des gestionnaires sophistiqu\u00e9s prenant en compte lors de la restitution des donn\u00e9es AS, des sous-r\u00e9seaux, de la proximit\u00e9 avec l'utilisateur, etc. Le support des enregistrements Lua est mis en \u0153uvre pour tous les backends de stockage, y compris BIND et LMDB. Par exemple, pour restituer des donn\u00e9es en tenant compte de la v\u00e9rification de la disponibilit\u00e9 des h\u00f4tes dans la configuration de la zone, il est d\u00e9sormais possible d'indiquer :\n<p>   @ IN LUA A<\/p>\n<li class=\"l\"> Une nouvelle utilitaire a \u00e9t\u00e9 ajout\u00e9e <noindex><a rel=\"nofollow\" href=\"https:\/\/doc.powerdns.com\/authoritative\/manpages\/ixfrdist.1.html\">ixfrdist<\/a><\/noindex>, permettant de transf\u00e9rer des zones depuis le serveur autoritaire par l'entremise des requ\u00eates AXFR et IXFR, en tenant compte de l'actualit\u00e9 des donn\u00e9es transf\u00e9r\u00e9es (pour chaque domaine, une v\u00e9rification du num\u00e9ro SOA est effectu\u00e9e et seules les nouvelles versions de la zone sont charg\u00e9es). L'utilitaire permet d'organiser la synchronisation des zones sur un tr\u00e8s grand nombre de serveurs secondaires et r\u00e9cursifs sans g\u00e9n\u00e9rer une forte charge sur le serveur primaire ;\n<li class=\"l\"> Dans le cadre de la pr\u00e9paration \u00e0 l'initiative <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51102\">DNS flag day 2020<\/a><\/noindex>  la valeur du param\u00e8tre udp-truncation-threshold a \u00e9t\u00e9 r\u00e9duite de 1680 \u00e0 1232, responsable de la coupure des r\u00e9ponses UDP au client, ce qui devrait r\u00e9duire consid\u00e9rablement la probabilit\u00e9 de perte de paquets UDP. La valeur 1232 a \u00e9t\u00e9 choisie car elle repr\u00e9sente le maximum, \u00e0 partir duquel la taille de la r\u00e9ponse DNS, en tenant compte d'IPv6, reste dans la valeur minimale MTU (1280) ;\n<li class=\"l\"> Un nouveau backend de stockage bas\u00e9 sur une base de donn\u00e9es a \u00e9t\u00e9 ajout\u00e9 <noindex><a rel=\"nofollow\" href=\"https:\/\/symas.com\/lmdb\/\">LMDB<\/a><\/noindex>. Le backend est enti\u00e8rement compatible avec DNSSEC, peut \u00eatre utilis\u00e9 pour des zones master et slave, et offre de meilleures performances que la plupart des autres backends. Juste avant la sortie, un changement a \u00e9t\u00e9 ajout\u00e9 au code qui a perturb\u00e9 le fonctionnement du backend LMDB (le traitement des zones slave et le chargement via pdnsutil fonctionnent, mais des commandes comme  ne fonctionnent plus. Des corrections sont pr\u00e9vues dans la prochaine version corrective;\n<li class=\"l\"> Le support de la fonction mal document\u00e9e  a \u00e9t\u00e9 abandonn\u00e9, car elle compliquait la r\u00e9solution de certains probl\u00e8mes. Conform\u00e9ment aux exigences <noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc8624\">RFC 8624<\/a><\/noindex> (GOST R 34.11-2012 a \u00e9t\u00e9 d\u00e9plac\u00e9 dans la cat\u00e9gorie ) le support des hachages GOST DS et des signatures num\u00e9riques ECC-GOST a \u00e9t\u00e9 interrompu dans DNSSEC.\n<\/ul>\n<p>Rappelons que PowerDNS est pass\u00e9 \u00e0 un cycle de d\u00e9veloppement de six mois, selon lequel la prochaine version majeure de PowerDNS Authoritative Server est attendue en f\u00e9vrier 2020. Les mises \u00e0 jour pour les versions majeures seront \u00e9labor\u00e9es tout au long de l'ann\u00e9e, apr\u00e8s quoi des correctifs de s\u00e9curit\u00e9 seront publi\u00e9s pendant encore six mois. Ainsi, le support de la branche PowerDNS Authoritative Server 4.2 se poursuivra jusqu'en janvier 2021. <\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Source : <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51400\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u0430\u0432\u0442\u043e\u0440\u0438\u0442\u0435\u0442\u043d\u043e\u0433\u043e (authoritative) DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 PowerDNS Authoritative Server 4.2, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u043e\u0442\u0434\u0430\u0447\u0438 DNS-\u0437\u043e\u043d. \u041f\u043e \u0434\u0430\u043d\u043d\u044b\u043c \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043f\u0440\u043e\u0435\u043a\u0442\u0430, PowerDNS Authoritative Server \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u0435\u0442 \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e 30% \u0438\u0437 \u043e\u0431\u0449\u0435\u0433\u043e \u0447\u0438\u0441\u043b\u0430 \u0434\u043e\u043c\u0435\u043d\u043e\u0432 \u0432 \u0415\u0432\u0440\u043e\u043f\u0435 (\u0435\u0441\u043b\u0438 \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0442\u044c \u0442\u043e\u043b\u044c\u043a\u043e \u0434\u043e\u043c\u0435\u043d\u044b \u0441 \u043f\u043e\u0434\u043f\u0438\u0441\u044f\u043c\u0438 DNSSEC, \u0442\u043e 90%). \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \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 GPLv2. PowerDNS Authoritative Server \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u043e \u0434\u043e\u043c\u0435\u043d\u0430\u0445 \u0432 [&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-37691","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 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