# 查询被阻止的请求或地址
<a name="query-examples-waf-logs-blocked-requests"></a>

本部分中的示例查询被阻止的请求或地址。
+ [Extract the top 100 IP addresses blocked by a specified rule type](#waf-example-extract-top-100-blocked-ip-by-rule)
+ [Count the number of times a request from a specified country has been blocked](#waf-example-count-request-blocks-from-country)
+ [Count the number of times a request has been blocked, grouping by specific attributes](#waf-example-count-request-blocks-by-attribute)
+ [Count the number of times a specific terminating rule ID has been matched](#waf-example-count-terminating-rule-id-matches)
+ [Retrieve the top 100 IP addresses blocked during a specified date range](#waf-example-top-100-ip-addresses-blocked-for-date-range)

**Example – 提取被指定规则类型阻止的前 100 个 IP 地址**  
下面的查询将提取并统计在指定的日期范围内被 `RATE_BASED` 终止规则阻止的前 100 个 IP 地址。  

```
SELECT COUNT(httpRequest.clientIp) as count,
httpRequest.clientIp
FROM waf_logs
WHERE terminatingruletype='RATE_BASED' AND action='BLOCK' and "date" >= '2021/03/01'
AND "date" < '2021/03/31'
GROUP BY httpRequest.clientIp
ORDER BY count DESC
LIMIT 100
```

**Example – 计算来自指定国家/地区的请求被阻止的次数**  
以下查询针对来自属于爱尔兰 (IE) IP 地址的请求，计算请求到达但被 `RATE_BASED` 终止规则阻止的次数。  

```
SELECT 
  COUNT(httpRequest.country) as count, 
  httpRequest.country 
FROM waf_logs
WHERE 
  terminatingruletype='RATE_BASED' AND 
  httpRequest.country='IE'
GROUP BY httpRequest.country
ORDER BY count
LIMIT 100;
```

**Example – 计算请求被阻止的次数，按特定属性分组**  
以下查询计算请求被阻止的次数，并按照 WebACL、RuleId、ClientIP 和 HTTP 请求 URI 对结果分组。  

```
SELECT 
  COUNT(*) AS count,
  webaclid,
  terminatingruleid,
  httprequest.clientip,
  httprequest.uri
FROM waf_logs
WHERE action='BLOCK'
GROUP BY webaclid, terminatingruleid, httprequest.clientip, httprequest.uri
ORDER BY count DESC
LIMIT 100;
```

**Example – 计算特定终止规则 ID 匹配的次数**  
以下查询计算特定终止规则 ID 匹配的次数 (`WHERE terminatingruleid='e9dd190d-7a43-4c06-bcea-409613d9506e'`)。然后，查询按照 WebACL、操作、ClientIP 和 HTTP 请求 URI 对结果分组。  

```
SELECT 
  COUNT(*) AS count,
  webaclid,
  action,
  httprequest.clientip,
  httprequest.uri
FROM waf_logs
WHERE terminatingruleid='e9dd190d-7a43-4c06-bcea-409613d9506e'
GROUP BY webaclid, action, httprequest.clientip, httprequest.uri
ORDER BY count DESC
LIMIT 100;
```

**Example – 检索指定日期范围内被阻止的前 100 个 IP 地址**  
以下查询将提取在指定日期范围内被阻止的前 100 个 IP 地址。该查询还列出了 IP 地址被阻止的次数。  

```
SELECT "httprequest"."clientip", "count"(*) "ipcount", "httprequest"."country"
FROM waf_logs
WHERE "action" = 'BLOCK' and "date" >= '2021/03/01'
AND "date" < '2021/03/31'
GROUP BY "httprequest"."clientip", "httprequest"."country"
ORDER BY "ipcount" DESC limit 100
```