{"id":18322,"date":"2021-05-27T17:15:22","date_gmt":"2021-05-27T15:15:22","guid":{"rendered":"https:\/\/info.gwdg.de\/news\/en\/?p=18322"},"modified":"2021-05-27T17:15:22","modified_gmt":"2021-05-27T15:15:22","slug":"solved-network-outage","status":"publish","type":"post","link":"https:\/\/info.gwdg.de\/news\/solved-network-outage\/","title":{"rendered":"Solved: Network-Outage"},"content":{"rendered":"<p><span style=\"text-decoration: underline;\"><strong>Meldungsnummer:<\/strong><\/span> 202105271705<span style=\"text-decoration: underline;\"><strong><br \/>\nZeitraum:<\/strong><\/span>\u00a027.05.2021, 15:15 bis 15:50 Uhr<span style=\"text-decoration: underline;\"><strong><br \/>\nBetroffen<\/strong><\/span><em><strong>: <\/strong><\/em><span class=\"hljs-string\">GWDG-services for users outside of the G\u00d6NET\/ the p<\/span><span class=\"hljs-string\">erimeter firewall<br \/>\n<\/span><span class=\"hljs-string\">\u00a0 \u00a0 \u00a0 G\u00d6NET<\/span> <span class=\"hljs-string\">behind the p<\/span><span class=\"hljs-string\">erimeter firewall<\/span> <span class=\"hljs-string\">(mainly<\/span>\u00a0<span class=\"hljs-string\">Uni-Institutes,<\/span> <span class=\"hljs-string\">GWDG<\/span> <span class=\"hljs-string\">EDPC,<\/span> <span class=\"hljs-string\">Studentenwerk)<\/span><br \/>\n<span style=\"text-decoration: underline;\"><strong>Auswirkungen<\/strong><\/span>: <span class=\"hljs-string\">Severe impairment, mostly total failure<\/span><span class=\"hljs-string\"><br \/>\n<\/span><span class=\"hljs-string\">\u00a0 \u00a0 Individual services still only slowly accessible up to 30min later<\/span><\/p>\n<p>After replacing the perimeter firewall between the Internet and the campus network of, among others, the University of G\u00f6ttingen, GWDG and UMG in the early hours of the morning, external influences unfortunately led to an overload situation starting at about 15:10, which was not visible in this way in the previous tests.<\/p>\n<p>Together with our support partner, we were able to determine and activate configuration parameters to handle this for this case and also in the future, even for similar, much larger situations, without restrictions to regular traffic.<\/p>\n<p>Correlated to the network problem, the solution of this problem led to availability problems of individual services. These had to handle the simultaneous &#8218;rush&#8216; of all users after.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Meldungsnummer: 202105271705 Zeitraum:\u00a027.05.2021, 15:15 bis 15:50 Uhr Betroffen: GWDG-services for users outside of the G\u00d6NET\/ the perimeter firewall \u00a0 \u00a0 \u00a0 G\u00d6NET behind the perimeter firewall (mainly\u00a0Uni-Institutes, GWDG EDPC, Studentenwerk) Auswirkungen: Severe impairment, mostly total failure \u00a0 \u00a0 Individual services still only slowly accessible up to 30min later After replacing the perimeter firewall between the &#8230; <a title=\"Solved: Network-Outage\" class=\"read-more\" href=\"https:\/\/info.gwdg.de\/news\/solved-network-outage\/\" aria-label=\"Mehr Informationen \u00fcber Solved: Network-Outage\">Weiterlesen<\/a><\/p>\n","protected":false},"author":99,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,42,9],"tags":[],"class_list":["post-18322","post","type-post","status-publish","format-standard","hentry","category-betriebsmeldungen","category-network","category-operating-news"],"_links":{"self":[{"href":"https:\/\/info.gwdg.de\/news\/wp-json\/wp\/v2\/posts\/18322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/info.gwdg.de\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/info.gwdg.de\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/info.gwdg.de\/news\/wp-json\/wp\/v2\/users\/99"}],"replies":[{"embeddable":true,"href":"https:\/\/info.gwdg.de\/news\/wp-json\/wp\/v2\/comments?post=18322"}],"version-history":[{"count":1,"href":"https:\/\/info.gwdg.de\/news\/wp-json\/wp\/v2\/posts\/18322\/revisions"}],"predecessor-version":[{"id":18323,"href":"https:\/\/info.gwdg.de\/news\/wp-json\/wp\/v2\/posts\/18322\/revisions\/18323"}],"wp:attachment":[{"href":"https:\/\/info.gwdg.de\/news\/wp-json\/wp\/v2\/media?parent=18322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/info.gwdg.de\/news\/wp-json\/wp\/v2\/categories?post=18322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/info.gwdg.de\/news\/wp-json\/wp\/v2\/tags?post=18322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}