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# whoami
## Name
*whoami* - returns your resolver's local IP address, port and transport.
## Description
The *whoami* plugin is not really that useful, but can be used for having a simple (fast) endpoint
to test clients against. When *whoami* returns a response it will have your client's IP address in
the additional section as either an A or AAAA record.
The reply always has an empty answer section. The port and transport are included in the additional
section as a SRV record, transport can be "tcp" or "udp".
~~~ txt
._<transport>.qname. 0 IN SRV 0 0 <port> .
~~~
The *whoami* plugin will respond to every A or AAAA query, regardless of the query name.
If CoreDNS can't find a Corefile on startup this is the _default_ plugin that gets loaded. As such
it can be used to check that CoreDNS is responding to queries. Other than that this plugin is of
limited use in production.
## Syntax
~~~ txt
whoami
~~~
## Examples
Start a server on the default port and load the *whoami* plugin.
~~~ corefile
example.org {
whoami
}
~~~
When queried for "example.org A", CoreDNS will respond with:
~~~ txt
;; QUESTION SECTION:
;example.org. IN A
;; ADDITIONAL SECTION:
example.org. 0 IN A 10.240.0.1
_udp.example.org. 0 IN SRV 0 0 40212
~~~
## See Also
[Read the blog post][blog] on how this plugin is built, or [explore the source code][code].
[blog]: https://coredns.io/2017/03/01/how-to-add-plugins-to-coredns/
[code]: https://github.com/coredns/coredns/blob/master/plugin/whoami/
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