Let`s Encypt installation error: DNS problem: NXDOMAIN looking up A for www.example.com

Created:

2016-12-18 06:43:53 UTC

Modified:

2017-08-19 03:06:13 UTC

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Let`s Encypt installation error: DNS problem: NXDOMAIN looking up A for www.example.com

Applicable to:

  • Plesk for Windows
  • Plesk for Linux

Symptoms

Let's Encrypt fails to install the certificate with the following error:

Error: Let's Encrypt SSL certificate installation failed: Failed letsencrypt execution: Saving debug log to C:\\Program Files (x86)\\Parallels\\Plesk\\var\\modules\\letsencrypt\\logs\\letsencrypt.log
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for example.com
http-01 challenge for www.example.com
Waiting for verification...
Cleaning up challenges
Failed authorization procedure. www.example.com (http-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: DNS problem: NXDOMAIN looking up A for www.example.com
IMPORTANT NOTES:
- The following errors were reported by the server:

Domain: www.example.com
Type: connection
Detail: DNS problem: NXDOMAIN looking up A for www.example.com

Cause

Missing A record for www.example.com .

Resolution

There are two options available:

  1. Create A record for www.example.com in DNS settings.

  2. Uncheck the option Include www.example.com as an alternative domain name .

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