| Good system administrators recognize problems long before
anyone asks, "Hey, is the Internet down?" Nagios, an open
source system and network monitoring tool, has emerged as
the most popular solution for sys admins in organizations of
all sizes. It's robust but also complex, and Nagios: System
and Network Monitoring, 2nd Edition, updated to address
Nagios 3.0, will help you take full advantage of this
program.
Nagios, which runs on Linux and most *nix variants, can be
configured to continuously monitor network services such as
SMTP, POP3, HTTP, NNTP, SSH, and FTP. It can also supervise
host resources (processor load, disk and memory usage,
running processes, log files, and so on) and environmental
factors, such as temperature and humidity. This book is your
guide to getting the most out of this versatile and powerful
monitoring tool.
Inside Nagios, you'll learn how to:
Install and configure the Nagios core, all standard plugins,
and selected third-party plugins
Configure the notification system to alert you of ongoing
problems-and to alarm others in case of a serious crisis
Program event handlers to take automatic action when trouble
occurs
Write Perl plugins to customize Nagios for your unique needs
Quickly understand your Nagios data using graphing and
visualization tools
Monitor Windows servers, SAP systems, and Oracle databases
The book also includes a chapter that highlights the
differences between Nagios versions 2 and 3 and gives
practical migration and compatibility tips. Nagios: System
and Network Monitoring, 2nd Edition is a great starting
point for configuring and using Nagios in your own
environment.
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Biting the hand that feeds IT 
Published by: NO STARCH PRESS