====== Nagios Core Monitoring======
We'll try to monitor a maximum via check_by_ssh
===== SSH key/user =====
==== Server ====
<code bash> ssh-keygen</code>
Copy the key
<code bash>
ssh-copy-id nagios@dns.fortier-family.com
ssh nagios@dns.fortier-family.com</code>
==== Client ====
<code bash>
useradd -m -d /home/nagios -s /bin/bash -p nagios nagios
passwd nagios</code>
check /etc/ssh/sshd_config for:
<code perl>
PasswordAuthentication yes</code>
===== CPU/Disk/RAM =====


===== Services =====




References:
  * https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/3/en/monitoring-publicservices.html
  * https://linux.101hacks.com/unix/check-http/
  * https://www.digitalocean.com/community/tutorials/how-to-install-nagios-4-and-monitor-your-servers-on-ubuntu-16-04