# DNS

## U**n résolveur DNS c’est quoi ?** 

> Le Domain Name System (ou DNS, système de noms de domaine) est un service permettant de traduire un nom de domaine en informations de plusieurs types qui y sont associées, notamment en adresses IP de la machine portant ce nom – Wikipedia​.

Comment fonctionne un DNS : <https://howdns.works>

## **Services**

* Vérifier les DNS d’un site avec **IntoDNS** : [https://intodns.com](https://intodns.com/)​
* **DNSPerf**, pour comparer les performances des DNS : [https://www.dnsperf.com](https://www.dnsperf.com/)
* Analyser ses logs DNS : <https://github.com/dmachard/DNS-collector>​


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://wiki.chamallow.com/1.-technologie/articles/dns.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.