{"id":1149,"date":"2017-12-06T17:39:17","date_gmt":"2017-12-06T17:39:17","guid":{"rendered":"http:\/\/general.sio57.info\/wp\/?p=1149"},"modified":"2017-12-06T17:46:15","modified_gmt":"2017-12-06T17:46:15","slug":"dns-round-robin","status":"publish","type":"post","link":"https:\/\/general.sio57.info\/wp\/?p=1149","title":{"rendered":"DNS Round Robin et R\u00e9partition de charge"},"content":{"rendered":"<p>Le DNS Round Robin est une technique qui consiste en l\u2019ajout de plusieurs adresses IP pour un m\u00eame nom de domaine.\u00a0Ce n\u2019est pas vraiment du load balancing, car il n\u2019y a pas de couche de monitoring des serveurs en backend (serveurs de destination du load balancer) afin de s\u2019assurer que le serveur est UP (et le cas \u00e9ch\u00e9ant, d\u2019envoyer une alerte ou autre).\u00a0C\u2019est le navigateur et le poste client qui jouent ce r\u00f4le. Si la premi\u00e8re IP pr\u00e9sente dans le DNS ne r\u00e9pond pas, la seconde r\u00e9pond et vice versa.<\/p>\n<p><strong>Comment le mettre en place ?<\/strong><\/p>\n<p>Il suffit donc d\u2019ajouter pour votre domaine 2 (ou plus) entr\u00e9es de type A vers les diff\u00e9rentes IP souhait\u00e9es :<\/p>\n<p>.www.domain.com \u00a0 \u00a0 A \u00a0 \u00a0 192.168.57.23<br \/>\n.www.domain.com \u00a0 \u00a0 A\u00a0 \u00a0 192.168.57.24<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le DNS Round Robin est une technique qui consiste en l\u2019ajout de plusieurs adresses IP pour un m\u00eame nom de domaine.\u00a0Ce n\u2019est pas vraiment du load balancing, car il n\u2019y a pas de couche de monitoring des serveurs en backend (serveurs de destination du load balancer) afin de s\u2019assurer que le serveur est UP (et [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59,71,25,85,28,40,44],"tags":[],"class_list":["post-1149","post","type-post","status-publish","format-standard","hentry","category-7-application","category-7-application-supervision","category-cours","category-services-et-applis","category-sisr3","category-sisr4","category-sisr5"],"_links":{"self":[{"href":"https:\/\/general.sio57.info\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/general.sio57.info\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/general.sio57.info\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/general.sio57.info\/wp\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/general.sio57.info\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1149"}],"version-history":[{"count":3,"href":"https:\/\/general.sio57.info\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1149\/revisions"}],"predecessor-version":[{"id":1154,"href":"https:\/\/general.sio57.info\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1149\/revisions\/1154"}],"wp:attachment":[{"href":"https:\/\/general.sio57.info\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/general.sio57.info\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/general.sio57.info\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}