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一般业务经过WAF访问有400的原因为请求头较多时，与WAF不兼容导致。建议按照以下方法逐步排查： 1.排查请求头过大目前WAF头部最大支持16K，可以与用户协调获取相关的payload排查，如果小于16K，可以排除头部过大导致的400。 2.排查key是否异常排查pyload的字段是否存在特...

【案例分享】CDN+WAF流量突增排查案例

背景阿里云CDN结合WAF使用，WAF作为CDN的源站，是较为常见的使用方式，可以充分发挥CDN的分发加速以及WAF的安全防护能力，一般架构为CDN-->WAF-->SLB-->ECS 问题概述某阿里云客户反馈2020年5月13日XX:XX分左右，部分CDN域名流量异常增长约4...

接入CDN/WAF后出现循环重定向问题的排查记录

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接入CDN/WAF后出现循环重定向问题的排查记录

一、问题描述客户反馈一个CDN加速域名解析切换到CDN的CNAME之后，访问出现301循环重定向的现象。与客户确认目前的业务架构如下：测试直接访问WAF（阿里云CDN源站），响应301 Redirect；测试直接访问AWS CloudF...

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Web应用防火墙（WAF）

适用于网站、H5、小程序等。全面应对被搜索引擎标识为危险；出现垃圾内容、恶意弹窗；域名劫持；Web应用漏洞；被挂马中毒；数据泄露；恶意注册灌水；被CC攻击导致Web应用崩溃或打不开；SQL注入、XSS跨站等攻击；爬虫等问题

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产品促销

按量付费0元开通

基础版仅需980元/月

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