Monitoring

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How To Monitor A System With Sysstat On Centos 4.3

How To Monitor A System With Sysstat On Centos 4.3

A common task for System Administrators is to monitor and care for a server. That's fairly easy to do at a moment's notice, but how to keep a record of this information over time?  One way to monitor your server is to use the Sysstat package.

Sysstat is actually a collection of utilities designed to collect information about the performance of a linux installation, and record them over time.

Configure OpenNMS Step By Step

Network Management With OpenNMS

OpenNMS is an opensource enterprise network management tool. It helps network administrators to monitor critical services on remote machines and collects the information of remote nodes by using SNMP. OpenNMS has a very active community, where you can register yourself to discuss your problems. Normally openNMS installation and configuration takes time, but I have tried to cover the installation and configuration part in a few steps.

Intrusion Detection With BASE And Snort

Intrusion Detection With BASE And Snort

This tutorial shows how to install and configure BASE (Basic Analysis and Security Engine) and the Snort intrusion detection system (IDS) on a Debian Sarge system. BASE provides a web front-end to query and analyze the alerts coming from a Snort IDS system. With BASE you can perform analysis of intrusions that Snort has detected on your network.

Postfix Monitoring With Mailgraph And pflogsumm

Postfix Monitoring With Mailgraph And pflogsumm

This article describes how you can monitor your Postfix mailserver with the tools Mailgraph and pflogsumm. Mailgraph creates daily, weekly, monthly, and yearly graphs of sent, received, bounced, and rejected emails and also of spam and viruses, if SpamAssassin and ClamAV are integrated into Postfix. These graphs can be accessed with a browser, whereas pflogsumm ("Postfix Log Entry Summarizer") can be used to send reports of Postfix activity per email.

Server Monitoring With BixData

Server Monitoring With BixData

BixData is a system, application, and network monitoring tool which allows you to easily monitor nearly every aspect of your servers. It can be used for general reporting, for sending notifications when problems arise, or for automatic maintenance and repairs - by executing scripts when errors or particular conditions arise.

The BixData system is made of three separate parts. The BixAgent runs on any machine you want to monitor. The BixServer is used to monitor machines remotely and to keep track of many different machines. The BixDesktop is a graphical interface that is used to setup and interact with the rest of the system.

Server Monitoring With munin And monit

Server Monitoring With munin And monit

In this article I will describe how to monitor your server with munin and monit. munin produces nifty little graphics about nearly every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, eth0 traffic, etc.) without much configuration, whereas monit checks the availability of services like Apache, MySQL, Postfix and takes the appropriate action such as a restart if it finds a service is not behaving as expected. The combination of the two gives you full monitoring: graphics that lets you recognize current or upcoming problems (like "We need a bigger server soon, our load average is increasing rapidly."), and a watchdog that ensures the availability of the monitored services.

Network Monitoring with Zabbix

Network Monitoring With Zabbix

Zabbix has the capability to monitor just a about any event on your network from network traffic to how many papers are left in your printer. It produces really cool grahps.

In this howto we install software that has an agent and a server side. The goal is to end up with a setup that has a nice web interface that you can show off to your boss ;)
It's a great open source tool that lets you know what's out there.
This howto will not go into setting up the network but I might rewrite it one day so I really like your input on this. Much of what is covered here is in the online documentation however if you are like me new to this all this might be of some help to you.

Monitoring access to Server SQUID

Monitoring access to Server SQUID

There are many forms for analyze of logs generated by the SQUID, Will be boarded five forms of verification: On-line, for line of command and manual verification through the tools Sarg, Webalizer, Calamaris and Squid-Graph.
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