If you went ahead and hit the Request Certificate button and then try to add domains, the process will error out. You can then under the Current Certificate tab use the Copy to options and use the same certificate for Webmin, Usermin, etc. If you want to use the Let’s Encrypt SSL Certificate for other subdomains, you have to select Domain names listed here and manually type all your subdomains. This setting will only pull in the domains that Apache is setup for. Under Virtualmin – Server Configuration – Manage SSL Certificate, the default will be Domains associated with this server. The Apache webserver will respond on your typical and, however the Webmin control panel is accessible by another prefix to. Let’s Encrypt SSL for Webmin LoginĪ secondary problem that I ran into had to do with the separate subdomains. I was able to let Virtualmin automatically find the new client. For CentOS, I found this to be: /root/letsencrypt/letsencrypt-auto The tutorial did not specify the path to the client command. There were a couple of issues I found out along the way. I followed TechJourney’s excellent guide: How to Use Let’s Encrypt SSL Certificate Automatically in Virtualmin & Webmin. To have this work, on Centos 7, do the following first and then it should work. You can read more about the issue on this Virtualmin Forum post. Virtualmin needs to be updated to support the new client. Let’s Encrypt now requires version 2 of their protocol and old clients are no longer supported. Since writing this, a few things have changed. The SSL certificate that was originally setup was self-signed and so I would have to manually add the certificate to iOS, MacOS, and make exceptions in browsers in order to use the website. The virtual machine runs CentOS 7 Linux and can be controlled using Virtualmin. It allows me the ability to write some thoughts and archive information for later viewing. My personal project is a virtual machine that I keep for journal purposes. However what makes Let’s Encrypt more appealing to webmasters is that the software makes renewals automatic and there is now software integration with cPanel and Virtualmin control panels. There is one other difference with Let’s Encrypt certificates: they are limited to 3 month intervals instead of yearly intervals. This makes SSL encryption a zero cost option for millions of individual webmasters who run websites like WebKeyDesign. Their certificates are free and are recognized by the web browser as a valid secure certificate. This is where Let’s Encrypt changes things. Most people do not buy SSL certificates, so you wind up with a market that sells bare bones SSL certificates that range around $25 and extended validation certificates for large ecommerce websites that cost thousands of dollars. Due to the market though, SSL certificates are one of those things that companies have a hard time making money off of. One solution that gets thrown out is SSL encryption for websites and how we all now need to secure our sites with an SSL certificate. Privacy is also an issue that is central to a free and progressive society. It is now typical for criminals to target banks, hospitals, and other critical institutions. Security is now a central concern for technical people and I would argue for most consumers.
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