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馃悶 Case-insensitive `_acme-challenge.` matching
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@cunnie cunnie released this 20 Jan 23:58
2.1.1
7ada439

Our DNS-01 challenges were failing because we weren't prepared for mixed-case queries. Now we properly recognize them.

Below are snippets from our log files, where we can see the queries' random casing (e.g. _ACMe-cHalLeNGE.34-83-219-164.sSlip.Io.). Henceforth we will ignore casing when detecting DNS-01 challenges.

2021/01/20 20:15:40 3.123.253.205.45368 TypeTXT _ACMe-cHalLeNGE.34-83-219-164.sSlip.Io. ? nil, SOA _ACMe-cHalLeNGE.34-83-219-164.sSlip.Io. briancunnie.gmail.com. 2021011400 900 900 1800 300

2021/01/20 20:15:40 18.219.85.19.35164 TypeTXT _acMe-chaLlENGe.34-83-219-164.ssliP.Io. ? nil, SOA _acMe-chaLlENGe.34-83-219-164.ssliP.Io. briancunnie.gmail.com. 2021011400 900 900 1800 300

2021/01/20 20:15:40 66.133.109.36.11107 TypeTXT _aCme-chaLleNGe.34-83-219-164.sSLip.Io. ? nil, SOA _aCme-chaLleNGe.34-83-219-164.sSLip.Io. briancunnie.gmail.com. 2021011400 900 900 1800 300
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