# Example Security Lake queries for Route 53 resolver query logs
<a name="route53_1_0-query-examples"></a>

Amazon Route 53 resolver query logs track DNS queries made by resources within your Amazon VPC. Subscribers can query Route 53 resolver query logs to learn the following types of information:

Here are some example queries of Route 53 resolver query logs for AWS source version 1:

**List of DNS queries from CloudTrail in the last 7 days**

```
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
```

**List of DNS queries that match `s3.amazonaws.com` in the last 7 days**

```
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
```

**List of DNS queries that didn't resolve in the last 7 days**

```
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
```

**List of DNS queries that resolved to `192.0.2.1`** in the last 7 days

```
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
```