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Let's Encrypt: https://letsencrypt.org/

Tutorial for SSL

[Tutorial: Configure SSL/TLS on Amazon Linux 2 - Amazon Elastic Compute Cloud]

(https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/SSL-on-amazon-linux-2.html#letsencrypt)

On section "Certificate automation: Let’s Encrypt with Certbot on Amazon Linux 2", Use this to instal `certauto`, but not to create

Stop after done `sudo yum install -y certbot python2-certbot-apache`

[Generate Wildcard SSL certificate using Let’s Encrypt/Certbot | by Saurabh Palande | Medium]

(https://medium.com/@saurabh6790/generate-wildcard-ssl-certificate-using-lets-encrypt-certbot-273e432794d7)
Start at Step 3. Replace `./certbot-auto` with `sudo certbot`
Use this to run command to create
Note: There can be multiple domains in command, e.g. `-d diaperyueteng.cf me -d *.diaperyueteng.cf`me`
Note: First deploy DNS TXT record under the prompted domain, pause for 5 minutes for it to activate, use the website below to verify it’s been activated (mind the value must be correct) then hit continue (otherwise will fail)
Note: If you include multiple domains, you will be required to enter multiple DNS TXT records
[DNS Lookup Text Record - MxToolbox](https://mxtoolbox.com/TXTLookup.aspx)

Command line to use

sudo certbot certonly --manual --preferred-challenges=dns --email diapertestemail@gmail.com --server https://acme-v02.api.letsencrypt.org/directory --agree-tos -d diaper.cf -d *.diaper.cf