Let's Encrypt is a non-profit certificate authority run by Internet Security Research Group that provides X.509 certificates for Transport Layer Security encryption at no charge.
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Install required compontents for Let's Encrypt
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# Step 1: Installing dependent modules
sudo yum install -y epel-release mod_ssl
# Step 2: Downloading the Let’s Encrypt client
sudo yum install -y python-certbot-apache |
Create SSL certificate
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sudo certbot --apache -d kurapa.com |
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$ sudo certbot --apache -d kurapa.com
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator apache, Installer apache
Starting new HTTPS connection (1): acme-v02.api.letsencrypt.org
Requesting a certificate for kurapa.com
Performing the following challenges:
http-01 challenge for kurapa.com
Waiting for verification...
Cleaning up challenges
Deploying Certificate to VirtualHost /etc/httpd/conf.d/vhosts.conf
Redirecting vhost in /etc/httpd/conf.d/vhosts.conf to ssl vhost in /etc/httpd/conf.d/vhosts.conf
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Congratulations! You have successfully enabled https://kurapa.com
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IMPORTANT NOTES:
- Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/kurapa.com/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/kurapa.com/privkey.pem
Your certificate will expire on 2022-01-19. To obtain a new or
tweaked version of this certificate in the future, simply run
certbot again with the "certonly" option. 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
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Wild Card SSL?
Following shell script (wild_certbot.sh) will enable you to create wild card domain
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| language | bash |
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| title | wild_certbot.sh |
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#!/bin/bash
sudo certbot certonly --manual \
--preferred-challenges=dns \
--email $1 \
--server https://acme-v02.api.letsencrypt.org/directory \
--agree-tos \
--manual-public-ip-logging-ok \
-d "$2,*.$2" |
You can do it as following:
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$ wild_certbot.sh kurapa@kurapa.com kurapa.com |
Then you will see like below:
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Use of --manual-public-ip-logging-ok is deprecated.
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator manual, Installer None
Starting new HTTPS connection (1): acme-v02.api.letsencrypt.org
Requesting a certificate for *.kurapa.com
Performing the following challenges:
dns-01 challenge for kurapa.com
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Please deploy a DNS TXT record under the name
_acme-challenge.kurapa.com with the following value:
W8GGMfEG4ck-dOF9dyHG8gNCc1uR_Ql_KjEi1jltuLQ
Before continuing, verify the record is deployed.
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Press Enter to Continue
Waiting for verification...
Resetting dropped connection: acme-v02.api.letsencrypt.org
Cleaning up challenges
Use of --manual-public-ip-logging-ok is deprecated.
IMPORTANT NOTES:
- Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/kurapa.com-0001/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/kurapa.com-0001/privkey.pem
Your certificate will expire on 2022-01-20. 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
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Note that you should update a DNS TXT record based on the guide above, as a step, before verfication.
How to update SSL?
As long as you have certificates based on Let's Encrypt, you can simply update it as:
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sudo certbot renew -n --apache -d kurapa.com |
If it doesn't require updating the SSL, it will show like:
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