doc: describe minimum useful ntsrefresh

This commit is contained in:
Miroslav Lichvar 2023-02-02 14:43:19 +01:00
parent dec07aa844
commit ecfbde9872

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@ -827,6 +827,10 @@ This directory is used also by the <<ntsdumpdir2,NTS server>> to save keys.
This directive specifies the maximum interval between NTS-KE handshakes (in
seconds) in order to refresh the keys authenticating NTP packets. The default
value is 2419200 (4 weeks) and the maximum value is 2^31-1 (68 years).
+
The interval must be longer than polling intervals of all configured NTP
sources using NTS, otherwise the source with a longer polling interval will
refresh the keys on each poll and no NTP packets will be exchanged.
[[ntstrustedcerts]]*ntstrustedcerts* [_set-ID_] _file_|_directory_::
This directive specifies a file or directory containing certificates (in the