Following the advice obtained here, I am trying to get a LetsEncrypt certificate.
These are the instructions:
Step 1:
      https://snapcraft.io/docs/installing-snapd
      
      Step 2:
      https://certbot.eff.org/lets-encrypt/centosrhel7-apache
My problem is this error message:
      
      # snap install --classic certbot
error: system does not fully support snapd: cannot mount squashfs
      image using "squashfs": mount:
             /tmp/sanity-squashfs-881328484: failed to setup loop
      device: No such file or directory
Apparently, RedHat/CentOS are not supporters of snap.
    
TIA
OS: CentOS 7