HTTPDNS query logs
If you have integrated HTTPDNS through the SDK, DoT/DoH, or JSON API, you can view domain name resolution details in resolution logs.
How to use
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Log on to the Alibaba Cloud DNS-Logs page.
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On the Simple Log Service page, on the Query Logs tab, select HTTPDNS.
Table header parameters
Responded At: The time when the domain name query was answered.
Resolution Delay: The time elapsed from when HTTPDNS receives a query request to when it returns the result.
Source IP Address: The IP address that initiated the query, typically the client terminal IP address.
IP Address Carried in ECS: The client IP address included in the edns-client-subnet (ECS) extension field, which enables the authoritative DNS server to return more accurate scheduling results.
Query Zone Name: The domain name queried in the DNS request.
Query Record Types: The DNS record type, such as A, AAAA, CNAME, TXT, or MX.
Access Protocol: The protocol used for the query, such as DoT, DoH, HTTP, or HTTPS.
Resolution Result: The DNS resolution result returned for the query.
Response Status: Common statuses include:
|
Status |
Description |
|
NOERROR |
The domain name was resolved successfully. |
|
NXDOMAIN (Non-Existent Domain) |
The queried domain name does not exist. |
|
SERVFAIL (Server Failure) |
The target DNS server encountered an error and could not process the query. |
|
REFUSED |
The DNS server refused the query due to policy restrictions, such as an overdue account payment or invalid AK/SK credentials. |
DNS Server IP Address: The IP address of the DNS server that responded to the query.
Conditional query
Time conditional query
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You can filter logs by preset time ranges, such as Last 1 Hour, Last 12 Hours, Today, Yesterday, 7 Days, 15 Days, and 30 Days. You can also select a custom time range within the last 90 days.
Keyword query
Filter logs by keyword, such as Query Zone Name, Source IP Address, Resolution Result, DNS Server IP Address, or Record Type.