{"id":23,"date":"2013-04-18T22:14:00","date_gmt":"2013-04-18T22:14:00","guid":{"rendered":"http:\/\/www.hauweele.net\/~gawen\/blog\/?p=23"},"modified":"2017-04-25T19:43:11","modified_gmt":"2017-04-25T19:43:11","slug":"conntrack-table-flood","status":"publish","type":"post","link":"https:\/\/hauweele.net\/~gawen\/blog\/?p=23","title":{"rendered":"Conntrack table flood"},"content":{"rendered":"<p>Recently we had problems with our gateway, connections were dropped and so on.<br \/>\nAfter a bit of investigation we found that it was due to a bugged game using Javascript which, when it ran on Firefox, opened connections in a loop flooding the connection tracking table in a matter of hours. Once found, it was easy to fix. This was also the occasion to tighten the timeouts values of nf_conntrack a little bit. Indeed 5 days timeouts for established connection doesn&#8217;t really make sense when your public IPv4 change every 36hours or so.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Recently we had problems with our gateway, connections were dropped and so on. After a bit of investigation we found that it was due to a bugged game using Javascript which, when it ran on Firefox, opened connections in a &hellip; <a href=\"https:\/\/hauweele.net\/~gawen\/blog\/?p=23\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[88,82,86,87,84,80,6,81,83,85],"class_list":["post-23","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-conntrack","tag-firefox","tag-flood","tag-gateway","tag-ip","tag-javascript","tag-linux","tag-nat","tag-tcp","tag-timeout"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/hauweele.net\/~gawen\/blog\/index.php?rest_route=\/wp\/v2\/posts\/23","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hauweele.net\/~gawen\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hauweele.net\/~gawen\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hauweele.net\/~gawen\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hauweele.net\/~gawen\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=23"}],"version-history":[{"count":0,"href":"https:\/\/hauweele.net\/~gawen\/blog\/index.php?rest_route=\/wp\/v2\/posts\/23\/revisions"}],"wp:attachment":[{"href":"https:\/\/hauweele.net\/~gawen\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=23"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hauweele.net\/~gawen\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=23"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hauweele.net\/~gawen\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=23"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}