Unable to install Let's Encrypt certificate: No valid IP addresses found for example.com

Created:

2017-06-08 22:20:48 UTC

Modified:

2017-08-16 17:01:46 UTC

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Unable to install Let's Encrypt certificate: No valid IP addresses found for example.com

Applicable to:

  • Plesk Onyx 17.5 for Linux

Symptoms

Unable to install Let's Encrypt certificate. The following error can be found in /usr/local/psa/admin/logs/panel.log :

Error: Error de instalación del certificado SSL Let's Encrypt: Challenge marked as invalid. Details: No valid IP addresses found for example.com

Cause

An alias domain is selected to be certified but alias domain does not have an A record.

Resolution

1. Remove alias for example.com domain under Let's Encrypt > Selected domain aliases.

or

2. Update DNS records for alias domain in order to point to Plesk server and then run again certification process.

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