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Hi. I'm a Unix Administrator, mathematics enthusiast, and amateur philosopher. This is where I rant about that which upsets me, laugh about that which amuses me, and jabber about that which holds my interest most: Unix.

acme-client fails with "file exists"

Posted 07-27-2019 at 05:47 AM by rocket357 (Musings on technology, philosophy, and life in the corporate world)
Updated 07-27-2019 at 11:58 PM by rocket357

Running OpenBSD-6.5 on a machine with two internet uplinks (shared on a common local network), I noticed that acme-client would die with "file exists" over and over again.

The problem was in how acme works when using http-01. In this mode, acme-client will reach out to the Lets Encrypt endpoints (v2 at the time of this writing) and ask for a certificate. Since it's using http-01, Lets Encrypt will then reach out to the domain the certificate is for (which needs to be the...
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