= Cacti = 

Through this hands-on you will install cacti monitoring system and create device entry for your workshop router and switch. You will also create graphs and arrange a graph hierarchy. Finally you will install some cacti plug-ins.  

== Installation == 

You can easily install cacti by following
{{{
# apt-get install cacti
}}}

* While the installation process you will be ask for a '''password''' for mysql server. Please give the '''<class password>'''.

* Select '''Apache2''' as the webserver type

* Select '''Yes''' to Configure database for cacti with dbconfig-common?

* Again give the '''<class password>''' for the database administrative user.

* You have complete the cacti installation. open a web browser in your host PC and give the following url.

'''http://<Your VM's IP Address>/cacti'''

* Click '''next'''

* Select '''New Install''' and click '''next''' 

* Click '''Finish''' and you will be directed to the cacti login page

* Use default username and password to login

User name : '''admin'''

Password : '''admin'''

* Now you have logged in to cacti monitoring system.

== Configuration ==

=== Change admin password ===

* First click to '''Console''' tab. Then click on '''User Management''' on the left side bar.

* In the User Management page click on the user name '''admin'''.

* In the password text box give the <class password> and click '''Save'''.

=== Cacti Graphs ===

* Click the '''Graphs''' tab. You will see '''Default Tree''' Icon on the side bar.

* expand it click on the '''localhost''' icon. You will see some graphs. (Might not have any values as it take time to generate values)

* These graphs will show the values of your VM.

=== Adding Devices ===

Now let's add some other devices to the system. We will add the workshop switch and the workshop router.

* Go to '''Console''' and click the '''Devices'''. 

* Click '''Add''' on the devices page. Now you can add the workshop router and the work shop switch and you will be directed to the add devices page. First add the Workshop Switch

* Give following settings

 description : '''workshp_sw'''
 
 Hostname : '''192.248.7.249'''
  
 Host Template : '''Generic SNMP-enabled Host'''

 Number of Collection Threads : '''1'''

 Downed Device Detection : '''Ping'''

 Ping Method : '''ICMP Ping'''
 
 SNMP Version : '''version 2'''

 SNMP Community : '''NetManage'''

* Click '''Create''' and then click '''Save'''
 
* You can add the workshop router as with the same settings with the correct IP address

=== Creating Graphs ===

Now that we have add devices let's create some graphs so we can monitor our devices.

* Go to '''Console''' and click the '''New Graphs'''.

* Select '''workshp_sw''' and it will show you all the available graphs. Also you can create new graphs from graphs template.

* To create a graph to measure ping latency select '''Unix-Ping Latency''' in the graph templates window. and click '''Create'''

* Keep the default legend color and value and click '''create'''

* Lets create graphs to measure the Network interfaces of the switch. To do that select the Network interfaces in the '''SNMP - Interface Statistics''' and click '''Create'''

* You can do the same and create graphs for the workshop router

=== Managing Graphs Trees===

Now let's create graph trees. So we can view the graphs in the graph section.

* Go to '''Console''' and click the '''Graph Trees'''.

* Click '''Add''' and give '''Network devices'''. Keep the parent item as '''[root]'''

* Click '''Create'''. 

* Add another two trees. One for the workshop Route and another for workshop switch. Keep the parent item as '''[Network Devices]'''

=== Adding Graphs to the graph tree ===

Let's add the graphs of sorkshop switch and workshop router to their graph trees.

* Go to '''Console''' and click the '''Graph Management'''.

* Select '''workshp_sw''' from the '''host''' drop down menu. 

* You will see all the graphs from the workshop switch select them all and select '''Place on a Tree''' from the '''choose an action''' drop down menu.

* Click '''Go''' and select '''worshopswitch''' from the '''Destination Branch:''' drop down menu.

* click '''Continue'''

* Do the same to the workshop router.

* Go to Graphs and check whether you can monitor the devices.