Some time ago, the SSL certificate from
ceased to be updated on the site. Judging by the mistakes, the structure of the files for organizing the keys has changed somewhat. After researching the problem, the easiest option was to install SSL certificates using the
utility. This utility installs certificates in automatic mode, and automatically creates a task to update the certificate, which is based either in the
scheduler or in
Since the site server is running on Ubuntu 16.04, the installation kit was also selected for this OS. In the case of other operating systems, Certbot also provides manuals for other systems.
If you are setting up an SSL certificate for the first time, you can use the manual on the Certbot website, if you have already configured the certificate with other utilities, for example, with the helpencrypt package without using certbot, as shown in the
, you will probably need to do a small cleaning Before installing Certbot`a.