Let's Encrypt Wildcard Certificate Certbot
https://dev.to/nabbisen/let-s-encrypt-wildcard-certificate-with-certbot-plo
Introduction
Let's Encrypt supports wildcard certificate via ACMEv2 using the DNS-01 challenge, which began on March 13, 2018. Certbot, its client, provides --manual option to carry it out. I sincerely appreciate them.
I write how I generated my wildcard certificate with Certbot. It was a very simple task : ) All what was necessary in addition is to add a TXT record specified by Certbot to the DNS server.
- Caution: As it is necessary to update Let's Encrypt's certificate every 90 days, a new TXT record is required at every renewal.
Body Environment
Certbot: >0.32.0
Tutorial
The command is like this:
# certbot certonly --manual --preferred-challenges dns --server https://acme-v02.api.letsencrypt.org/directory --manual-public-ip-logging-ok -d '*.<your.domain>' -d <your.domain>
Make sure to quote *.<your.domain> to avoid the error "no matches found: *.<your.domain>".
- Note: the order of -d *.<your.domain> and -d <your.domain> didn't seem to matter.
Here is the comparison of certonly options with a single certificate:
- --webroot -w <dir-path> + --manual --preferred-challenges dns --server https://acme-v02.api.letsencrypt.org/directory --manual-public-ip-logging-ok
Besides, the detail of its command line options is here.
Then, the command replies:
Saving debug log to /var/log/letsencrypt/letsencrypt.log Plugins selected: Authenticator manual, Installer None Obtaining a new certificate Performing the following challenges: dns-01 challenge for <your.domain> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Please deploy a DNS TXT record under the name _acme-challenge.<your.domain> with the following value: <acme-challenge-value> Before continuing, verify the record is deployed. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Press Enter to Continue Configure the DNS server to add a record to your domain. The record is like this: Where What Type TXT Name _acme-challenge Value <acme-challenge-value> the command shows above
- Анхаарах: DNS тохиргоо идэвхжих хүртэл хэдэн минут хүлээсний дараа Enter дарах хэрэгтэй.
Waiting for verification... Cleaning up challenges IMPORTANT NOTES: - Congratulations! Your certificate and chain have been saved at: /etc/letsencrypt/live/<your.domain>/fullchain.pem Your key file has been saved at: /etc/letsencrypt/live/<your.domain>/privkey.pem Your cert will expire on 2019-08-01. To obtain a new or tweaked version of this certificate in the future, simply run certbot again. To non-interactively renew *all* of your certificates, run "certbot renew" - If you like Certbot, please consider supporting our work by: Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate Donating to EFF: https://eff.org/donate-le Done : )
