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4568a3c25a
add the acl manual page; mechanical change otherwise. Signed-off-by: Miek Gieben <miek@miek.nl>
83 lines
1.7 KiB
Groff
83 lines
1.7 KiB
Groff
.\" Generated by Mmark Markdown Processer - mmark.miek.nl
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.TH "COREDNS-WHOAMI" 7 "September 2019" "CoreDNS" "CoreDNS Plugins"
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.SH "NAME"
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.PP
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\fIwhoami\fP - returns your resolver's local IP address, port and transport.
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.SH "DESCRIPTION"
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.PP
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The \fIwhoami\fP plugin is not really that useful, but can be used for having a simple (fast) endpoint
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to test clients against. When \fIwhoami\fP returns a response it will have your client's IP address in
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the additional section as either an A or AAAA record.
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.PP
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The reply always has an empty answer section. The port and transport are included in the additional
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section as a SRV record, transport can be "tcp" or "udp".
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.PP
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.RS
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.nf
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\&.\_<transport>.qname. 0 IN SRV 0 0 <port> .
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.fi
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.RE
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.PP
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The \fIwhoami\fP plugin will respond to every A or AAAA query, regardless of the query name.
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.PP
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If CoreDNS can't find a Corefile on startup this is the \fIdefault\fP plugin that gets loaded. As such
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it can be used to check that CoreDNS is responding to queries. Other than that this plugin is of
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limited use in production.
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.SH "SYNTAX"
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.PP
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.RS
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.nf
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whoami
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.fi
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.RE
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.SH "EXAMPLES"
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.PP
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Start a server on the default port and load the \fIwhoami\fP plugin.
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.PP
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.RS
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.nf
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example.org {
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whoami
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}
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.fi
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.RE
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.PP
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When queried for "example.org A", CoreDNS will respond with:
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.PP
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.RS
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.nf
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;; QUESTION SECTION:
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;example.org. IN A
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;; ADDITIONAL SECTION:
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example.org. 0 IN A 10.240.0.1
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\_udp.example.org. 0 IN SRV 0 0 40212
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.fi
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.RE
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.SH "SEE ALSO"
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.PP
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Read the blog post
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\[la]https://coredns.io/2017/03/01/how-to-add-plugins-to-coredns/\[ra] on how this plugin is built, or explore the source code
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\[la]https://github.com/coredns/coredns/blob/master/plugin/whoami/\[ra].
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