Installation of check-ssl-certs
-------------------------------
To install check-ssl-certs: sh install.sh

This will:
 * Install the script to /usr/local/sbin
 * Install the manpage to /usr/local/share/man/man1

You will want to copy check-ssl-certs.conf-sample.php to /etc as
check-ssl-certs.conf.php if it does no already exist, and edit/add settings.

You will almost certainly want to configure it for your LetsEncrypt clients,
as by default it expects to check both /etc/ssl/dehydrated and 
/etc/letsencrypt/live directories.

Automatically Running check-ssl-certs
-------------------------------------
You will want check-ssl-certs to run automatically, at least once a day. 
To facilitate this, a cron job and systemd components are provided.

To use cron, copy check-ssl-certs to /etc/cron.d

To use systemd, copy check-ssl-certs.service and check-ssl-certs.timer to
/etc/systemd/system and then activate them:

  systemctl enable check-ssl-certs.service
  systemctl enable check-ssl-certs.timer
  systemctl start check-ssl-certs.service
  systemctl start check-ssl-certs.timer

