{"id":1330,"date":"2020-12-07T13:59:20","date_gmt":"2020-12-07T05:59:20","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=1330"},"modified":"2020-12-07T13:59:20","modified_gmt":"2020-12-07T05:59:20","slug":"time_wait%e5%a4%aa%e5%a4%9a","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=1330","title":{"rendered":"time_wait\u592a\u591a"},"content":{"rendered":"\n<p><a href=\"https:\/\/blog.csdn.net\/zhangjunli\/article\/details\/89321202\">https:\/\/blog.csdn.net\/zhangjunli\/article\/details\/89321202<\/a><\/p>\n\n\n\n<p>\u53c2\u8003\u8fd9\u91cc\u9762\u7684\u8bbe\u7f6e<\/p>\n\n\n\n<p>\/etc\/sysctl.conf<\/p>\n\n\n\n<ol><li>net.ipv4.tcp_syncookies = 1 #\u8868\u793a\u5f00\u542fSYN Cookies\u3002\u5f53\u51fa\u73b0SYN\u7b49\u5f85\u961f\u5217\u6ea2\u51fa\u65f6\uff0c\u542f\u7528cookies\u6765\u5904\u7406\uff0c\u53ef\u9632\u8303\u5c11\u91cfSYN\u653b\u51fb\uff0c\u9ed8\u8ba4\u4e3a0\uff0c\u8868\u793a\u5173\u95ed\uff1b<\/li><li>net.ipv4.tcp_tw_reuse = 1 #\u8868\u793a\u5f00\u542f\u91cd\u7528\u3002\u5141\u8bb8\u5c06TIME-WAIT sockets\u91cd\u65b0\u7528\u4e8e\u65b0\u7684TCP\u8fde\u63a5\uff0c\u9ed8\u8ba4\u4e3a0\uff0c\u8868\u793a\u5173\u95ed\uff1b<\/li><li>net.ipv4.tcp_tw_recycle = 1 #\u8868\u793a\u5f00\u542fTCP\u8fde\u63a5\u4e2dTIME-WAIT sockets\u7684\u5feb\u901f\u56de\u6536\uff0c\u9ed8\u8ba4\u4e3a0\uff0c\u8868\u793a\u5173\u95ed\u3002<\/li><li>net.ipv4.tcp_fin_timeout 30 #\u4fee\u6539\u7cfb\u9ed8\u8ba4\u7684 TIMEOUT \u65f6\u95f4\uff0c\u9ed8\u8ba460<\/li><li>net.ipv4.tcp_keepalive_time = 1200 <em>#\u8868\u793a\u5f53keepalive\u8d77\u7528\u7684\u65f6\u5019\uff0cTCP\u53d1\u9001keepalive\u6d88\u606f\u7684\u9891\u5ea6\u3002\u7f3a\u7701\u662f2\u5c0f\u65f6\uff0c\u6539\u4e3a20\u5206\u949f\u3002<\/em><\/li><li>net.ipv4.ip_local_port_range = 1024 65000 <em>#\u8868\u793a\u7528\u4e8e\u5411\u5916\u8fde\u63a5\u7684\u7aef\u53e3\u8303\u56f4\u3002\u7f3a\u7701\u60c5\u51b5\u4e0b\u5f88\u5c0f\uff1a32768\u523061000\uff0c\u6539\u4e3a1024\u523065000\u3002<\/em><\/li><li>net.ipv4.tcp_max_syn_backlog = 8192 <em>#\u8868\u793aSYN\u961f\u5217\u7684\u957f\u5ea6\uff0c\u9ed8\u8ba4\u4e3a1024\uff0c\u52a0\u5927\u961f\u5217\u957f\u5ea6\u4e3a8192\uff0c\u53ef\u4ee5\u5bb9\u7eb3\u66f4\u591a\u7b49\u5f85\u8fde\u63a5\u7684\u7f51\u7edc\u8fde\u63a5\u6570\u3002<\/em><\/li><li>net.ipv4.tcp_max_tw_buckets = 5000 <em>#\u8868\u793a\u7cfb\u7edf\u540c\u65f6\u4fdd\u6301TIME_WAIT\u5957\u63a5\u5b57\u7684\u6700\u5927\u6570\u91cf\uff0c\u5982\u679c\u8d85\u8fc7\u8fd9\u4e2a\u6570\u5b57\uff0cTIME_WAIT\u5957\u63a5\u5b57\u5c06\u7acb\u523b\u88ab\u6e05\u9664\u5e76\u6253\u5370\u8b66\u544a\u4fe1\u606f\u3002<\/em>#\u9ed8\u8ba4\u4e3a180000\uff0c\u6539\u4e3a5000\u3002\u5bf9\u4e8eApache\u3001Nginx\u7b49\u670d\u52a1\u5668\uff0c\u4e0a\u51e0\u884c\u7684\u53c2\u6570\u53ef\u4ee5\u5f88\u597d\u5730\u51cf\u5c11TIME_WAIT\u5957\u63a5\u5b57\u6570\u91cf\uff0c\u4f46\u662f\u5bf9\u4e8e Squid\uff0c\u6548\u679c\u5374\u4e0d\u5927\u3002\u6b64\u9879\u53c2\u6570\u53ef\u4ee5\u63a7\u5236TIME_WAIT\u5957\u63a5\u5b57\u7684\u6700\u5927\u6570\u91cf\uff0c\u907f\u514dSquid\u670d\u52a1\u5668\u88ab\u5927\u91cf\u7684TIME_WAIT\u5957\u63a5\u5b57\u62d6\u6b7b<\/li><\/ol>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/blog.csdn.net\/zhangjunli\/article\/details\/893212 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[16,81],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1330"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1330"}],"version-history":[{"count":1,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1330\/revisions"}],"predecessor-version":[{"id":1331,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1330\/revisions\/1331"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1330"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}