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[plugin/reload]: Change hash from md5 to sha512 (#5226)

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This PR changes the reload plugin's hash from md5 to sha512,
for the purpose of avoid using md5. MD5 is a weak hash algorithm
and for security reasons we will avoid using it.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This commit is contained in:
Yong Tang
2022-03-07 09:55:10 -08:00
committed by GitHub
parent 3fe9d41a21
commit c7b55230e0
2 changed files with 10 additions and 10 deletions
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4
plugin/reload/README.md
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@@ -10,7 +10,7 @@ This plugin allows automatic reload of a changed _Corefile_.
To enable automatic reloading of _zone file_ changes, use the `auto` plugin.
This plugin periodically checks if the Corefile has changed by reading
it and calculating its MD5 checksum. If the file has changed, it reloads
it and calculating its SHA512 checksum. If the file has changed, it reloads
CoreDNS with the new Corefile. This eliminates the need to send a SIGHUP
or SIGUSR1 after changing the Corefile.
@@ -101,7 +101,7 @@ CoreDNS v1.7.0 and later does parse the Corefile and supports detecting changes
* `coredns_reload_failed_total{}` - counts the number of failed reload attempts.
* `coredns_reload_version_info{hash, value}` - record the hash value during reload.
Currently the type of `hash` is "md5", the `value` is the returned hash value.
Currently the type of `hash` is "sha512", the `value` is the returned hash value.
## See Also