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NilsFrkal avatar NilsFrkal commented on June 12, 2024 1

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zbjornson avatar zbjornson commented on June 12, 2024

Thanks for the report, will look as soon as I can.

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zbjornson avatar zbjornson commented on June 12, 2024

@NilsFrkal the above commit should fix it. Please let me know if you encounter it again.

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NilsFrkal avatar NilsFrkal commented on June 12, 2024

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zbjornson avatar zbjornson commented on June 12, 2024

From RFC 1035:

the time interval that the resource record may be cached before the source of the information should again be consulted. Zero values are interpreted to mean that the RR can only be used for the transaction in progress, and should not be cached. For example, SOA records are always distributed with a zero TTL to prohibit caching. Zero values can also be used for extremely volatile data.

For your case, you should theoretically be able to set it to 0, but practically, (1) not all clients and resolvers will obey this (MacOS X apparently has a minimum of 12.5 seconds) and (2) at least historically some clients interpreted 0 incorrectly (see this).

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