Configure the following HTTP-01 settings.

ACMEv2 HTTP-01 Retry Count

The maximum number of times the CEG ACMEv2 Enrollment Service will retry HTTP-01 Validation before timing out.

HTTP-01 Validation attempts can fail when the HTTP-01 challenge server responds with the 503 Service Unavailable HTTP code.

This setting supports a value range from 0 to unlimited.

Mandatory: No. This setting defaults to 4.

ACMEv2 HTTP-01 Retry Interval

The number of seconds to wait between HTTP-01 Validation attempts.

HTTP-01 Validation attempts can fail when the HTTP-01 challenge server responds with the 503 Service Unavailable HTTP code.

If set to 0, the ACMEv2 server will wait 1 second after the first connection failure and 2 seconds after each subsequent failure.

Mandatory: No. This defaults to 0.

ACMEv2 HTTP-01 Redirect on POST

Whether to enable redirects when the client responds with the 302, 307, or 308 HTTP code. Select:

  • Yes to enable redirects and follow redirects up to 50 hops.
  • No to disable redirects, mark the challenge as failed, and flag the associated client order as invalid.

Mandatory: No. This setting defaults to No.