How To Monitor And Manage IPMI Management Console

This guide provides an overview on how to monitor and manage
IPMI Management Console with Verax NMS. The Intelligent Platform Management Interface
(IPMI) is a standardized computer system interface us…

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Server Monitoring With Icinga On Debian Squeeze

Icinga is an
enterprise grade open source monitoring system which keeps watch over
networks and any conceivable network resource, notifies the user of
errors and recoveries and generates performance d…

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Monitoring ESX/ESXi Servers

The purpose is to highlight the most important topics related to
setting up ESX/ESXi monitoring as well as applications hosted within
managed virtual machines (a MySQL database is used in this tutorial).

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How To Automatically Shut Down Your Computer After A Download Finishes

Sometimes you want to download something but don’t want to wait until
it finishes so you can shut down the computer. In this case you can use
Sentinella.

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[Jay Kickliter] writes in to tell us about his open source energy/power meter. With his buddy [Frank Lynam] they designed a small device that crams into existing power boxes and uses and 8 core propeller (P8X32A) microcontroller to perform true RMS voltage and current measurements using a current transformer. [Frank] and [Jay] don’t stop there. [...]

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Installing Nagios On Debian Lenny And Monitoring A Debian Lenny
Server

Nagios is a monitoring solution for complex IT infrastructures,
Nagios is easy to implement and can be extended by custom-modules,
called plugins. In this howto I explain howto …

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Easy RoundCube (Over SSL) And Webmin With fail2ban For ISPConfig 3
On Debian Squeeze

I prefer the RoundCube solution over the default in ISPConfig 3. I
also find it useful to have the webmin installed in all my systems. In
this post you can see a v…

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[BrianH] decided that he no longer wanted to venture outside on cold or rainy days just to check if the mail had come, so he built himself a notification system that would alert him if the postman had stopped by. Additionally, he admits to being forgetful on occasion and wanted a way to monitor whether [...]

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Nagios Installation On Ubuntu 10.04 (Lucid Lynx)

This tutorial shows how to set up Ubuntu Lucid Lynx (10.4)
server with the Nagios Monitoring System. Nagios is a powerful, highly
configurable monitoring and alarming system, which can monitor a wide …

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Installing Full-Featured Rsyslog 5.7.x On CentOS 5.x

This tutorial shows how you can install new generation of syslog
servers by using
Rsyslog. According to Rsyslog web site (www.rsyslog.com),
Rsyslog is an enhanced syslogd supporting, among others…

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System Monitoring With sar And ksar

sar is one of the old and famous commandline utilities, which is
often overlooked. It provides a wealth of information when you have kind
of performance bottlenecks. By itself it only provides lengthy columns
of …

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Icinga (Monitoring Solution) Installation And Configuration On
CentOS

Icinga is an enterprise grade open source monitoring system which
keeps watch over networks and any conceivable network resource, notifies
the user of errors and recoveries an…

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[Bill Porter] has joined in the pursuit of an inexpensive yet effective way to monitor his power usage. He calls his project the Not So Tiny Power Meter, and shared both his successes and follies involved in seeing it through to implementation. There are problems; sizing issues with enclosures and his PCB, issues with noise [...]

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How To Monitor Your Linux Server With SMS Alerts And Performance
Graphs
This tutorial shows how you can monitor your Linux server with a tool
from Bijk – with
email and SMS alerts. Bijk is an open source application, for creating
live graphs and a…

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How To Configure The AIDE (Advanced Intrusion Detection Environment)
File Integrity Scanner For Your Website

A file integrity scanner is something you need to have.  Imagine a
hacker placing a backdoor on your web site, or changing your order…

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Flexnet License Monitoring With rrdtool

Some of you may know the commercial Flexnet Licencing Application
(©Macrovision). It’s a client-server based solution for managing the
usage of socalled Flexnet-enabled applications. You can hold licenses o…

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Apache And MySQL Monitoring With Bijk On Debian Lenny

This tutorial describes how you can monitor your server with the tool
Bijk. Bijk creates
online 30 graphs about load, CPU, memory, traffic, Apache, NginX,
PostreSQL and others with alerts. Bijk …

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Postfix Monitoring With Mailgraph And pflogsumm On Debian Lenny

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…

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Server Monitoring With munin And monit On Mandriva 2010.0

In this article I will describe how you can monitor your Mandriva
2010.0 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.

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Wireshark Remote Capturing

This short tutorial is without screenshots but a slightly more
advanced usecase of Wireshark, namely doing the capture on one box and
visualize the captured data in realtime on another box.

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Server Monitoring With munin And monit On Debian Lenny

In this article I will describe how you can monitor your Debian
Lenny 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.

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Network Analysis With Wireshark On Ubuntu 9.10

Wireshark is
a network protocol analyzer (or “packet sniffer”) that can be used for
network analysis, troubleshooting, software development, education,
etc. This guide shows how to install and use it on an Ubuntu 9.10
desktop to analyze the traffic on the local network card.

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Trafficanalysis Using Debian Lenny

By using my Network Monitoring Appliance we noticed a link in MRTG
always under heavy load. On this link a lot of different traffic
aggregates, so we decided to analyze of what quantities of protocols
and therefore applications the cumulative traffic consists.

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Network Monitoring Appliance

My ambition was to implement a small (better tiny) appliance for
monitoring network health and network resources, short and longtime
trends, running under VMware Server or VMware ESX. So I had an eye upon
all components which are implemented on the system, to be as
leightweight as possible. This was also the reason why no SQL DBMS
based software was used. The appliance is based on Ubuntu Jeos LTS (8.04.3 at the time of
this writing). Almost all used components are from the related
repositories. This tutorial shows how the appliance was implemented.

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Monitoring Multiple Log Files At A Time With MultiTail On Debian Lenny

MultiTail
lets you view one or multiple files like the original tail program. The
difference is that it creates multiple windows on your console (with
ncurses). It can also monitor wildcards: if another file matching the
wildcard has a more recent modification date, it will automatically
switch to that file. That way you can, for example, monitor a complete
directory of files. Merging of two or even more log files is possible.

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The 1-Wire HVAC monitoring system is for residential Geothermal HVAC systems. This project utilizes the so called 1-wire temperature sensor. A single board computer handles the brunt of the work including web accessible trend data. With access to the underling temperatures, the over all system performance may be gauged. Earlier this year we covered a [...]

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Monitoring Network Latency With Smokeping (Ubuntu 9.04)

This guide shows how to install and configure Smokeping on Ubuntu 9.04 to monitor network latency. From the Smokeping web site: “SmokePing
is a deluxe latency measurement tool. It can measure, store and display
latency, latency distribution and packet loss. SmokePing uses RRDtool
to maintain a longterm data-store and to draw pretty graphs, giving up
to the minute information on the state of each network connection.”

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