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Improve RFC links (#8612)

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The `tools.ietf.org` site now redirects to `www.rfc-editor.org`.
* Update various URLs to the new site.
* Make links to `www.rfc-editor.org` consistent.

Signed-off-by: SuperQ <superq@gmail.com>
This commit is contained in:
Ben Kochie
2026-10-08 10:21:06 +02:00
committed by GitHub
parent 763bdb9b76
commit 311a9915da
60 changed files with 1006 additions and 215 deletions
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7
man/coredns-cache.7
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@@ -1,5 +1,5 @@
.\" Generated by Mmark Markdown Processer - mmark.miek.nl
.TH "COREDNS-CACHE" 7 "March 2026" "CoreDNS" "CoreDNS Plugins"
.TH "COREDNS-CACHE" 7 "October 2026" "CoreDNS" "CoreDNS Plugins"
.SH "NAME"
.PP
@@ -82,6 +82,9 @@ Popular means \fBAMOUNT\fP queries have been seen with no gaps of \fBDURATION\fP
\fBDURATION\fP defaults to 1m. Prefetching will happen when the TTL drops below \fBPERCENTAGE\fP,
which defaults to \fB\fC10%\fR, or latest 1 second before TTL expiration. Values should be in the range \fB\fC[10%, 90%]\fR.
Note the percent sign is mandatory. \fBPERCENTAGE\fP is treated as an \fB\fCint\fR.
Concurrent requests that trigger a prefetch for the same cache entry dispatch at most one
background fetch, so prefetch load scales with the number of distinct eligible entries rather
than request rate.
.IP \(bu 4
\fB\fCserve_stale\fR, when serve_stale is set, cache will always serve an expired entry to a client if there is one
available as long as it has not been expired for longer than \fBDURATION\fP (default 1 hour). By default, the \fIcache\fP plugin will
@@ -92,6 +95,8 @@ responses have a TTL of 0. \fBREFRESH_MODE\fP controls the timing of the expired
checking to see if the entry is available from the source. \fBREFRESH_MODE\fP defaults to \fB\fCimmediate\fR. Setting this
value to \fB\fCverify\fR can lead to increased latency when serving stale responses, but will prevent stale entries
from ever being served if an updated response can be retrieved from the source.
In \fB\fCimmediate\fR mode, concurrent requests for the same expired entry dispatch at most one
background refresh.
.IP \(bu 4
\fB\fCservfail\fR cache SERVFAIL responses for \fBDURATION\fP. Setting \fBDURATION\fP to 0 will disable caching of SERVFAIL
responses. If this option is not set, SERVFAIL responses will be cached for 5 seconds. \fBDURATION\fP may not be