Archive > 22.7 Legacy Series

ACME NGINX HTTP 400 Again.

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Fright:
@itngo
hi. sorry for the delay.
OK, I think I understand your settings. if it is assumed that the configuration itself (without using the default acme settings) is correct and working, then the only thing that comes to my mind is "authorization cache" vs. "Multi-Perspective Validation": validation may not be at all when renewing the certificate (if validation cache ttl is not exceeded) and it is possible that the firewall blocked one of the validation requests when a new one is issued (https://letsencrypt.org/2020/02/19/multi-perspective-validation.html)

itngo:
We will test that again in about 30 days, to make sure there is nothing in the cache anymore....

Thank you....

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