title: How to monitor remote servers using Cacti without SSH tunnels?
body: <p>Nagios uses NRPE plugin to monitor remote processes.
  So you need to open only one port on the remote machine.</p>
  
  <p>For Cacti, you need to open all the required ports so the shell scripts can retrieve data.
  Or we can use SSH tunneling.</p>
  
  <p>Is there a NRPE equivalent for Cacti so remote monitor can be done securely?</p>