{"id":280436,"date":"2023-08-18T20:06:20","date_gmt":"2023-08-18T12:06:20","guid":{"rendered":"https:\/\/lrxjmw.cn\/lxtsdbmlhcsb.html"},"modified":"2023-08-18T20:06:20","modified_gmt":"2023-08-18T12:06:20","slug":"lxtsdbmlhcsb","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/lxtsdbmlhcsb.html","title":{"rendered":"Linux\u7cfb\u7edf\u4e0a\u7684bpftrace\u547d\u4ee4\u884c\u53c2\u6570\u4e0d\u517c\u5bb9\u800c\u6267\u884c\u5931\u8d25"},"content":{"rendered":"<p 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style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u9996\u5148\u8bf4\u8bf4\u6211\u7684\u80cc\u666f\u4ee5\u53ca\u6211\u4e3a\u4f55\u8fd9\u4e48\u559c\u6b22\u7814\u7a76\u5185\u6838\u3002\u6211\u66fe\u4e0eDavid\u4e00\u8d77\u517c\u4efbDocker\u6838\u5fc3\u7ef4\u62a4\u4eba\u5458\uff0c\u4e3b\u8981\u8d1f\u8d23\u4f7f\u7528iptables\u4e3a\u5bb9\u5668\u63d0\u4f9b\u8fc7\u6ee4\u548c\u8def\u7531\u903b\u8f91\u3002\u6211\u9012\u4ea4\u7684\u7b2c\u4e00\u4e2aPR\u5c31\u662f\u4fee\u8865CentOS\u4e0a\u4e0d\u540c\u7248\u672ciptables<a style='color:#0000CC;font-size:16px' href='https:\/\/www.linuxcool.com\/' target='_blank' rel=\"noopener\">\u547d\u4ee4<\/a>\u884c\u53c2\u6570\u4e0d\u517c\u5bb9\u800c\u6267\u884c\u5931\u8d25\u7684\u95ee\u9898\u3002\u5047\u5982\u4f60\u548c\u6211\u4e00\u6837\uff0c\u5e38\u5e38\u5f00\u53d1\u548c\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u8fd9\u4e48\u4f60\u4e5f\u4e00\u5b9a\u4f1a\u78b0\u5230\u8fc7\u597d\u591a\u8bf8\u8fd9\u4e48\u7c7b\u7684\u95ee\u9898\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u5728\u4e3b\u673a\u4e0a\u5efa\u7acb\u6210\u5343\u4e0a\u4e07\u7684\u89c4\u5219\u4e5f\u4f1a\u8ba9iptables\u4e0d\u582a\u91cd\u8d1f\uff0c\u6211\u987b\u8981\u89e3\u51b3\u7531\u6b64\u9020\u6210\u7684<a style='color:#0000CC;font-size:16px' href='https:\/\/www.linuxdown.com\/' target='_blank' rel=\"noopener\">\u7cfb\u7edf<\/a>\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u5f53\u6211\u63a5\u89e6BPF\u548cXDP\u5de5\u5177\u540e\uff0c\u7b80\u76f4\u5982\u83b7\u73cd\u5b9d\u3002\u6211\u4e0d\u518d\u7ea0\u7ed3\u4e8e\u4f7f\u7528iptables\u9047\u89c1\u7684\u7c7b\u4f3c\u95ee\u9898\u3002\u53e6\u5916\uff0c\u6211\u5341\u5206\u9ad8\u5174\u5730\u636e\u6089\u5185\u6838\u793e\u533a\u751a\u81f3\u8ba1\u5212\u4f7f\u7528BPF\uff08\uff09\u4ee3\u66ffiptables\uff0c\u540c\u65f6\uff0c\u5bb9\u5668\u7f51\u8def\u5de5\u5177Cilium\uff08\uff09\u4e5f\u6b63\u5728\u91c7\u7528BPF\u548cXDP\u8fdb\u884c\u5b8c\u5584\u3002<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u4e0d\u4ec5\u53ef\u4ee5\u5b9e\u73b0\u6108\u53d1\u4f18\u79c0\u7684iptables\u7684\u529f\u80fd\u5916\uff0cBPF\u8fd8\u53ef\u4ee5\u5b9e\u73b0\u66f4\u591a\u7684\u529f\u80fd\uff0c\u4f8b\u5982\uff0c\u5e2e\u52a9\u6211\u4eec\u8ddf\u8e2a\u7cfb\u7edf\u8c03\u7528\u3001\u5185\u6838\u51fd\u6570\u548c\u7528\u6237\u6001\u7684\u7a0b\u5e8f\u3002<a style='color:#0000CC;font-size:16px' href='https:\/\/lrxjmw.cn\/' target='_blank' rel=\"noopener\">Linux<\/a>\u7cfb\u7edf\u4e0a\u7684bpftrace\uff08\uff09\u547d\u4ee4\u884c\u5de5\u5177\u5b9e\u73b0\u4e86\u7c7b\u4f3c\u4e8eDTrace\u7684\u5f3a\u608d\u7684\u529f\u80fd\u3002bpftrace\u53ef\u4ee5\u8ddf\u8e2a\u6240\u6709\u6b63\u5728\u6253\u5f00\u7684\u6587\u4ef6\u53e5\u67c4\u3001\u6253\u5f00\u6587\u4ef6\u7684\u8fdb\u7a0b\uff0c\u7edf\u8ba1\u7a0b\u5e8f\u7684\u7cfb\u7edf\u8c03\u7528\uff0c\u8ddf\u8e2aOOMkillerarm linux\uff0c\u7b49\u7b49<strong>linux \u6700\u5c0f\u5185\u6838\u6d4f\u89c8\u5668<\/strong>\uff0c\u4e00\u5207\u5c3d\u5728\u628a\u63e1\u4e4b\u4e2d\u3002BPF\u548cXDP\u4e5f\u88ab\u7528\u5728Cloudflare\uff08\uff09\u548cFacebook\u7684\u8d1f\u8f7d\u5747\u8861\u5668\uff08\uff09\u4e0aarm linux\uff0c\u7528\u4e8e\u9632\u5fa1DDoS\u529f\u51fb\u3002XDP\u5728\u7f51\u8def\u8fc7\u6ee4\u6570\u636e\u5305\u65b9\u9762\u8868\u73b0\u5f97\u76f8\u5f53\u51fa\u4f17<strong>linux \u6700\u5c0f\u5185\u6838\u6d4f\u89c8\u5668<\/strong>\uff0c\u5728\u672c\u4e66\u7684XDP\u548c\u7f51\u8def\u90e8\u4efd\u53ef\u4ee5\u4e86\u89e3\u5230\u66f4\u591a\u7684\u4fe1\u606f\u3002<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img style='max-height:500px;max-width:80%;margin: 10px auto' src='https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/08\/1692360375783_0.png' alt='\u6d4f\u89c8\u5668linux\u7248_linux \u6700\u5c0f\u5185\u6838\u6d4f\u89c8\u5668_\u5185\u6838\u7248\u672c\u6d4f\u89c8\u5668' \/><\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u6211\u6709\u5e78\u5728Kubernetes\u793e\u533a\u8ba4\u8bc6\u4e86Lorenzo\uff0c\u4ed6\u5f00\u53d1\u7684kubectl-trace\uff08\uff09\u5de5\u5177\u53ef\u4ee5\u8ba9\u7528\u6237\u5728Kubernetes\u96c6\u7fa4\u4e0a\u8f7b\u677e\u5730\u8fd0\u884c\u591a\u6837\u5316\u7684\u8ddf\u8e2a\u7a0b\u5e8f\u3002<\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'><img style='max-height:500px;max-width:80%;margin: 10px auto' src='https:\/\/lrxjmw.cn\/wp-content\/uploads\/2023\/08\/1692360375783_1.jpg' alt='\u5185\u6838\u7248\u672c\u6d4f\u89c8\u5668_linux \u6700\u5c0f\u5185\u6838\u6d4f\u89c8\u5668_\u6d4f\u89c8\u5668linux\u7248' \/><\/p>\n<p style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u5c31\u4e2a\u4eba\u800c\u8a00\uff0c\u6211\u4e5f\u5341\u5206\u559c\u6b22\u4f7f\u7528BPF\u7f16\u64b0\u591a\u6837\u5316\u7684\u8ddf\u8e2a\u5668\uff0c\u5411\u670b\u53cb\u8bc1\u660e\u5979\u4eec\u7f16\u64b0\u7684\u8f6f\u4ef6\u987b\u8981\u8fdb\u884c\u6027\u80fd\u4f18\u5316\uff0c\u6216\u8981\u6c42\u5979\u4eec\u964d\u4f4e\u9ad8\u6602\u7684\u7cfb\u7edf\u8c03\u7528\u6b21\u6570\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u6027\u80fd\u3002\u4e0d\u8981\u9ad8\u4f30\u901a\u8fc7\u6570\u636e\u534f\u52a9\u4ed6\u4eba\u8fdb\u884c\u7cfb\u7edf\u8c03\u4f18\u7684\u5a01\u529b\u3002\u4e0d\u8981\u62c5\u5fe7\uff0c\u672c\u4e66\u5c06\u4f1a\u6307\u5bfc\u4f60\u7f16\u64b0\u7b2c\u4e00\u4e2a\u8ddf\u8e2a\u7a0b\u5e8f\uff0c\u5e76\u5e2e\u52a9\u4f60\u8fdb\u884c\u7cfb\u7edf\u6027\u80fd\u4f18\u5316\u3002BPF\u4e4b\u524d\u7684\u5de5\u5177\u90fd\u662f\u901a\u8fc7\u4f7f\u7528\u6709\u635f\u961f\u5217\uff0c\u5c06\u6837\u672c\u96c6\u53d1\u9001\u5230\u7528\u6237\u7a7a\u95f4\u8fdb\u884c\u805a\u5408\uff0c\u800cBPF\u5219\u53ef\u4ee5\u5728\u5185\u6838\u7a7a\u95f4\u76f4\u63a5\u57fa\u4e8e\u98ce\u6ce2\u6e90\u5efa\u7acb\u76f4\u65b9\u56fe\u548c\u8fc7\u6ee4\uff0c\u8fd9\u4e9b\u673a\u5236\u5341\u5206\u9002\u7528\u4e8e\u751f\u4ea7\u73af\u5883\u3002<\/p>\n<p 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style='margin-bottom:16px;color:#555555;font-size:16px;line-height:200%;text-indent:2em'>\u2014JessieFrazelle<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9664\u4e86\u53ef\u4ee5\u5b9e\u73b0\u66f4\u52a0\u4f18\u79c0\u7684iptables\u7684\u529f\u80fd\u5916\uff0cBPF\u8fd8\u53ef\u4ee5\u5b9e\u73b0\u66f4\u591a\u7684\u529f\u80fd\uff0c\u6bd4\u5982\uff0c\u5e2e\u52a9\u6211\u4eec\u8ddf\u8e2a\u7cfb\u7edf\u8c03\u7528\u3001\u5185\u6838\u51fd\u6570\u548c\u7528\u6237\u6001\u7684\u7a0b\u5e8f\u3002\u5c31\u4e2a\u4eba\u800c\u8a00\uff0c\u6211\u4e5f\u975e\u5e38\u559c\u6b22\u4f7f\u7528BPF\u7f16\u5199\u5b9a\u5236\u5316\u7684\u8ddf\u8e2a\u5668\uff0c\u5411\u540c\u4e8b\u8bc1\u660e\u4ed6\u4eec\u7f16\u5199\u7684\u8f6f\u4ef6\u9700\u8981\u8fdb\u884c\u6027\u80fd\u4f18\u5316\uff0c\u6216\u8981\u6c42\u4ed6\u4eec\u51cf\u5c11\u6602\u8d35\u7684\u7cfb\u7edf\u8c03\u7528\u6b21\u6570\u4ee5\u63d0\u5347\u7a0b\u5e8f\u6027\u80fd\u3002\u6211\u5f88\u4e50\u610f\u4e86\u89e3\u672c\u4e66\u7684\u8bfb\u8005\u6700\u7ec8\u4f1a\u91c7\u7528BPF\u6784\u5efa\u4ec0\u4e48\uff0c\u65e0\u8bba\u662f\u7528\u6765\u8ddf\u8e2a\u8f6f\u4ef6\u9519\u8bef\u3001\u81ea\u5b9a\u4e49\u9632\u706b\u5899\u8fd8\u662f\u7f16\u5199\u7ea2\u5916\u89e3\u7801\uff08\uff09\u7684\u811a\u672c\u3002<\/p>\n","protected":false},"author":1,"featured_media":280437,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[988],"tags":[999],"class_list":["post-280436","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tougao","tag-999"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/280436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=280436"}],"version-history":[{"count":0,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/280436\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/280437"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=280436"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=280436"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=280436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}