Letsencrypt wildcard certificate

To enable a Letsencrypt wildcard certificate do the following steps

1. Create a DNS entry *.[domain_name].[domain_extension]
for example *.plaatsoft.nl

2. Run following certbot command to create a wildcard certificate
sudo certbot certonly -d *.plaatsoft.nl –manual

3. Certbot will ask you to add an extra DNS entry (TXT) with a unique token
Add this record in your DNS

4. Press “yes”. Then wildcard certifate is created

5. Add new certificate to Apache or HaProxy.

6. Case closed

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