HTTPS is now the default ======================== By default, ZoneMinder will use the certifciate created when the mod_ssl pacakge was installed on your system. Since the certificate is self-signed, you will get a warning from your browser the first time you access the web portal. This is normal. This is not intended to be an all encompasing solution for everyone. ZoneMinder will work just fine over HTTPS the way it is currently configured. However, here are a couple of considerations you may want to take to improve your experience. 1. Install a fully signed certificate from letsencrypt, using certbot. See the certbot site for more information. This free service is very easy to set up. https://certbot.eff.org/all-instructions/ 2. Create your own certificate. The CentOS wiki has a guide that describes how to do this: https://wiki.centos.org/HowTos/Https . Additionally, Googling "centos certificate" reveals many articles on the subject. 3. You can turn off HTTPS entirely by simply commenting out the SSLRequireSSL directives found in /etc/httpd/conf.d/zoneminder.conf. You should also comment out the HTTP -> HTTPS Rewrite rule.