Add Monitor Plugin to Cacti on Ubuntu

Monitor plugin lets you to view the up/down status of your hosts at a glance.. It will sound an alarm when the devices go down using icmp pings or snmp up time..

If you want to install Cacti on Trusty workstation, please refer this.

Be the root user 1st..
sudo su

Get the plugin..
wget "http://docs.cacti.net/_media/plugin:monitor-v1.3-1.tgz"

Rename the downloaded file..
mv plugin\:monitor-v1.3-1.tgz monitor-v1.3-1.tgz

Move the file to the plugins folder..
cp monitor-v1.3-1.tgz /usr/share/cacti/site/plugins

Change the directory to the plugins folder..
cd /usr/share/cacti/site/plugins

Unzip the folder..
tar -zvxf monitor-v1.3-1.tgz

Everything done so far is shown in the following capture...

Now log in to Cacti and go to Console -> Plugin Management
You will see something like below..

You can see the blue icon in actions column.. Click on it

A new green icon will appear..
Click on it, it will turn to a red icon..

Now the plugin is added.. You will see a new tab for the plugin next to Console & Graphs..