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# Route 53 解析器查询日志的安全湖查询示例
<a name="route53_1_0-query-examples"></a>

Amazon Route 53 Resolver 查询日志可以跟踪由 Amazon VPC 中的资源进行的 DNS 查询。订阅用户可以查询 Route 53 Resolver 查询日志，以了解以下类型的信息：

以下是AWS源版本 1 的 Route 53 解析器查询日志的一些示例查询：

**过去 7 天 CloudTrail 内的 DNS 查询列表**

```
SELECT 
      time,
      src_endpoint.instance_uid,
      src_endpoint.ip,
      src_endpoint.port,
      query.hostname,
      rcode
    FROM amazon_security_lake_glue_db_us_east_1.amazon_security_lake_table_us_east_1_route53_1_0
    WHERE eventDay BETWEEN cast(date_format(current_timestamp - INTERVAL '7' day, '%Y%m%d%H') as varchar) and cast(date_format(current_timestamp - INTERVAL '0' day, '%Y%m%d%H') as varchar) 
    ORDER BY time DESC
    LIMIT 25
```

**过去 7 天内与 `s3.amazonaws.com` 匹配的 DNS 查询的列表**

```
SELECT 
      time,
      src_endpoint.instance_uid,
      src_endpoint.ip,
      src_endpoint.port,
      query.hostname,
      rcode,
      answers
    FROM amazon_security_lake_glue_db_us_east_1.amazon_security_lake_table_us_east_1_route53_1_0
    WHERE query.hostname LIKE 's3.amazonaws.com.' and eventDay BETWEEN cast(date_format(current_timestamp - INTERVAL '7' day, '%Y%m%d%H') as varchar) and cast(date_format(current_timestamp - INTERVAL '0' day, '%Y%m%d%H') as varchar)
    ORDER BY time DESC
    LIMIT 25
```

**过去 7 天内未解析的 DNS 查询的列表**

```
SELECT 
      time, 
      src_endpoint.instance_uid, 
      src_endpoint.ip, 
      src_endpoint.port, 
      query.hostname, 
      rcode, 
      answers
    FROM amazon_security_lake_glue_db_us_east_1.amazon_security_lake_table_us_east_1_route53_1_0
    WHERE cardinality(answers) = 0 and eventDay BETWEEN cast(date_format(current_timestamp - INTERVAL '7' day, '%Y%m%d%H') as varchar) and cast(date_format(current_timestamp - INTERVAL '0' day, '%Y%m%d%H') as varchar)
    LIMIT 25
```

**过去 7 天内解析到 `192.0.2.1`** 的 DNS 查询的列表

```
SELECT 
      time, 
      src_endpoint.instance_uid, 
      src_endpoint.ip, 
      src_endpoint.port, 
      query.hostname, 
      rcode, 
      answer.rdata
    FROM amazon_security_lake_glue_db_us_east_1.amazon_security_lake_table_us_east_1_route53_1_0
    CROSS JOIN UNNEST(answers) as st(answer)
    WHERE answer.rdata='192.0.2.1' and eventDay BETWEEN cast(date_format(current_timestamp - INTERVAL '7' day, '%Y%m%d%H') as varchar) and cast(date_format(current_timestamp - INTERVAL '0' day, '%Y%m%d%H') as varchar)
    LIMIT 25
```