We have an very strict firewall policy to block all AWS incoming traffic. We block all IP V4 ranges of AWS. Due new multivalidation process our certificates renew requests fails on Secondary validation. Lookin for info about it I read that this secondary validation initiates on Amazon. I Turned of…

Work around about AWS in second validation fail

ndilieto March 14, 2020, 7:34pm 8

dns-01 can be tricky, even if you have full control of your DNS

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