Letsencrypt¶

link-list:

https://www.digitalocean.com/community/tutorials/how-to-secure-apache-with-let-s-encrypt-on-centos-7
https://www.centosblog.com/use-letsencrypt-free-ssl-certificate-centos-linux/
https://www.my-it-brain.de/wordpress/der-eigene-mailserver-tls-migration-zu-lets-encrypt/
https://www.kuketz-blog.de/certbot-lets-encrypt-tls-zertifikate-fuer-mailserver/
https://blog.tausys.de/2016/07/13/letsencrypt-zertifikate-fuer-dovecot-und-postfix/
https://community.letsencrypt.org/t/certs-for-mailserver-different-from-webserver/32216/7
https://community.letsencrypt.org/t/1-certificate-for-6-domains/49471
https://community.letsencrypt.org/t/multiple-domains-webroot-paths-using-webroot-plugin/7982/5
https://community.letsencrypt.org/t/installed-correctly-but-still-says-certificate-error-using-edge/49453/2

taken from https://www.digitalocean.com/community/tutorials/how-to-secure-apache-with-let-s-encrypt-on-centos-7

• epel

yum install epel-release

*install

yum install httpd mod_ssl python-certbot-apache

yum install certbot

• apache service

systemctl start httpd
systemctl enable httpd

• firewall

firewall-cmd --permanent --zone=public --add-service=http
firewall-cmd --permanent --zone=public --add-service=https
firewall-cmd --reload

• test apache service

curl example.com
curl -k https://example.com

certbot --apache -d example.com -d www.example.com