Debian/Ubuntu Tips and Tricks

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Debian/Ubuntu Tips and Tricks

How-To: Monitor your servers with SNMP and Cacti

Posted by chantra on 11th June 2007

This entry is part 1 of 3 in the series How-To: Monitor your servers with SNMP and Cacti

SNMP (Simple Network Management Protocol) is a protocol for managing networks. Each managed entity in the network will run an snmp server (snmpd) which is going to collect datas from the server such as networking, load, cpu ...

Cacti on the other hand is a frontend to the RRDTool with SNMP support. It collects and keep data in a MySQL database and display them through a PHP web frontend.

This tutorial will show how to configure the network manager to use Cacti and how to set up snmp on the managed host.

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How-To: Monitor your servers with SNMP and Cacti — page 2

Posted by chantra on 10th June 2007

This entry is part 2 of 3 in the series How-To: Monitor your servers with SNMP and Cacti

Now that we have our snmp server up and running, we are going to install cacti to manage the snmp server in our network.

2. Installing Cacti

Cacti displays system statistics through a PHP/MySQL web interface.

To gather informations, it runs a script which is going to poll the servers you registered in cacti: /usr/share/cacti/site/poller.php.

So, let's get started an install cacti.

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How-To: Monitor your servers with SNMP and Cacti — page 3

Posted by chantra on 10th June 2007

This entry is part 3 of 3 in the series How-To: Monitor your servers with SNMP and Cacti

3. Adding new devices to cacti

A device can be anything which is SNMP enabled. It could be a router, a switch....

In our example, we are going to add the server we configured in the first part of this tutorial. The server is on localhost, but it could be anywhere on a network, as long as our manager host is allowed to connect to its SNMP port.

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