https://josh-weatherly.com/2018/08/freebsd-ssl-apache-lets-encrypt-certbot/

https://www.digitalocean.com/community/tutorials/how-to-secure-apache-with-let-s-encrypt-on-freebsd-12-0

pkg install -y py39-certbot py39-certbot-apache

echo 'weekly_certbot_enable="YES"' >> /etc/periodic.conf

echo "LoadModule ssl_module libexec/apache24/mod_ssl.so" >> /usr/local/etc/apache24/Includes/httpd.conf
echo "LoadModule rewrite_module libexec/apache24/mod_rewrite.so" >> /usr/local/etc/apache24/Includes/httpd.conf

ee /usr/local/etc/apache24/Includes/your_domain.com.conf

<VirtualHost *:80>
#    ServerAdmin your_email@your_domain.com
    DocumentRoot "/usr/local/www/apache24/data/"
    ServerName your_domain.com
#    ServerAlias www.your_domain.com
<IfModule alias_module>
    ScriptAlias /cgi-bin/ "/usr/local/www/apache24/cgi-bin/"
</IfModule>
<IfModule !alias_module>
    DirectoryIndex index.html
</IfModule>
 
 
#    ErrorLog "/var/log/stat.lc.lviv.ua-error_log"
#    CustomLog "/var/log/stat.lc.lviv.ua-access_log" common
 
</VirtualHost>

service apache24 restart

certbot --apache -d your-domain -d www.your-domain

certbot renew --dry-run

certbot certificates

Saving debug log to /var/log/letsencrypt/letsencrypt.log
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Found the following certs:
  Certificate Name: my.example.ua
    Serial Number: 3d3578a221edc86906c4eeee76bdefeed23
    Key Type: RSA
    Domains: my.example.ua
    Expiry Date: 2022-04-30 22:19:36+00:00 (VALID: 89 days)
    Certificate Path: /usr/local/etc/letsencrypt/live/my.example.ua/fullchain.pem
    Private Key Path: /usr/local/etc/letsencrypt/live/my.example.ua/privkey.pem
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certbot certificates -d my.example.ua

For Zabbix monitoring on FreeBSD

https://github.com/lightvik/zabbix-templates/blob/master/LE-certificates-information/le-certificates.sh

certbot certificates | grep Certificate\ Name | awk '{ print $3 }'