OpenSource NetMonitoring » monitoring

BWM-NG – Network Bandwidth & Disk I/O Monitoring

admin — Fri, 21 Mar 2008 19:52:01 +0000

Bandwidth Monitor NG (bwm-ng) is a simple small console based live Network and Disk I/O Bandwidth monitor for Linux, Unix, BSD,Solaris, Mac OSx, Windows based platforms.

There is no fancy GUI or interfaces simple console utility which installs and runs flawlessly showing live stats of your Network or Disk I/O stats.

Disk I/O support is only added in the latest stable version bwm-ng 0.6 and Disk I/O is not supported on Windows Platforms yet.

Features include

support for /proc/net/dev, netstat, getifaddr, sysctl, kstat for Network Monitoring

support for /proc/diskstats /proc/partitions, IOKit, devstat and libstatgrab for Disk I/O Monitoring

Support for unlimited number of Network interfaces/devices

Dynamic Addition and Deletion of interfaces/devices to the list

Whitelist and blacklist of interfaces/devices

Output formats of KB/s, Kb/s, packets, errors, average, max and total sum

Output in curses, plain console, CSV or HTML

While packages are available for most of the platforms, installation is fairly straight forward. Download, compile and install as follows:

I did the installation in Debian but should be the same for most of the platforms

Download

debian4R2Base:/etc# wget http://www.gropp.org/bwm-ng/bwm-ng-0.6.tar.gz

Untar & Unzip

debian4R2Base:/etc# tar -zxvf bwm-ng-0.6.tar.gz

Compile & Install

debian4R2Base:/etc# cd bwm-ng-0.6

debian4R2Base:~/bwm-ng-0.6# ./configure

debian4R2Base:~/bwm-ng-0.6# make && make install

You have to install “libstatgrab”, if you choose to use it

debian4R2Base:~/bwm-ng-0.6# aptitude install libstatgrab6

That completes the installation.

In debian, if you want to use the aptitude package manager to install then you need to install from the unstable source http://packages.debian.org/unstable/net/bwm-ng as this contains the latest version with disk I/O support.

If disk I/O is not required then can install bwm-ng 0.5 from the stable sources

debian4R2Base:~/bwm-ng-0.6# aptitude install bwm-ng

Once installed simply running “bwm-ng” will default to Network stats on all interfaces. You can use bwm-ng for all options.

For stats on all network Interfaces

debian4R2Base:~/bwm-ng-0.6# bwm-ng

For stats on Select Network Interface

debian4R2Base:~/bwm-ng-0.6# bwm-ng -I eth0

where eth0 is the network interface

For stats on Disk I/O

debian4R2Base:~/bwm-ng-0.6# bwm-ng -i disk

(Reads from /proc/diskstat)

In Windows, simply download, unzip the file and run the EXE file. For more information, visit the homepage here

Nagios Checker – Nagios Alarms on your Firefox Status bar

admin — Tue, 11 Mar 2008 19:50:31 +0000

Just came across this great Firefox Browser addon, Nagios Checker 0.11 for Nagios Network Monitoring system alerts. This is a great simple addon that shows any alarms on your nagios monitoring system simply on the browser status bar providing the need not to logon to Nagios web interface. The extension loads up in the status bar and alarms you of any network events. What I liked in the extension is that it is absolutely non-intrusive. Sits on the bottom right corner of the browser status bar and highlights any alarm. When you move your mouse over it, it displays the alarm in detail.

Once installed, restart the browser. This should load the extension on the status bar. Right-click and select Settings. As a first step, Add a new Nagios Monitoring Server and its access username and password. This allows the extension to obtain status update from Nagios.

Nagios Checker 0.11 can work on Firefox 1.x & 2.x version of the browser and can support nagios 1.x & Nagios 2.x

It provides a quite a lot of features including

Filtering the output on the Extension window

Output Display Properties

Sound Alerts when an alarm appears

Extension behaviour control and status.cgi update interval

For more information and installation, please click here

Good Nagios Plugins on the web

admin — Wed, 02 Jan 2008 19:53:16 +0000

Nagios Plugins are available from download on the main Nagios site and the Nagios Exchange website. However, there are a lot of resource out their on the internet where some good plugins are found. I’ve just the ones I know.

Official Nagios Plugin

http://www.nagios.org/download/

Nagios Exchange

http://www.nagiosexchange.org

Nagios SNMP Plugind from Emmanuelle & Patrick

http://www.manubulon.com/nagios/

Nagios Plugins at OpenFusion

http://www.openfusion.com.au/labs/nagios/

Nagios Plugins at CPAN

http://search.cpan.org/~tonvoon/Nagios-Plugin-0.10/

WebInject as a Nagios Plugin

http://www.webinject.org/plugin.html

Debian Nagios Plugin Package (STABLE)

http://packages.debian.org/stable/net/nagios-plugins

Debian Nagios Plugin Package (UNSTABLE)

http://packages.debian.org/unstable/net/nagios-plugins

check_clamav Nagios plugin

http://bsd.phoenix.az.us/projects/check-clamav

Nagios Plugin RPM Packages at DAG for Redhat and Fedora

http://dag.wieers.com/packages/nagios-plugins/

Server blacklist & SIP device plugin at bashton

http://www.bashton.com/content/nagiosplugins

Nagios Plugins RPM package for SUSE Linux

http://www.novell.com/products/linuxpackages/enterpriseserver/i386/nagios-plugins.html

Check_tftp & check_oracle_writeaccess plugins at Mathias Kettner

http://mathias-kettner.com/nagios_plugins.html

Nagios Plugin for OpenQRM

http://www.openqrm.org/nagios-and-openqrm.html

How to Install & Upgrade Nagmin for Nagios 1.x

admin — Tue, 01 Jan 2008 19:26:36 +0000

Nagmin is webmin module for Nagios and is a versatile tool that manages and compliments Nagios. Unfortunately, Nagios will only support the Nagios 1.x versions and not the 2.x versions for the reason that the MySQL database support is no more available on Nagios 2.x versions. Nagmin had its very active work done sometime in 2004 and unfortunate it is not taken any further. However, in its last available state, it is still a very powerful tool to administer Nagios. Being an Admin myself, I wouldn’t prefer a different admin tool than Nagmin for Nagios.

Installation of Nagmin requires the following installed on the server:

An installed working Nagios 1.x version
An installed working MySQL 3.0 or higher (Latest version 5.0)
An installed working NMap (Latest Version 4.11)
An installed working Net-SNMP (Latest Version 5.3.1)
An installed working RRDTool (Latest Version 1.2.15)

Installation of Nagmin is a two step procedure. First install Webmin and then Nagmin
Install WEBMIN

Download the latest version of Webmin from

http://www.webmin.com

The latest version when this article is written is 1.300 and can be downloaded from here:

http://prdownloads.sourceforge.net/webadmin/webmin-1.300.tar.gz

Once downloaded,

Untar the files using,

# tar -zxvf webmin-1.300.tar.gz

Change to the extracted Directory

# cd webmin-1.300

Run the setup script as follows,

# ./setup.sh /usr/local/webmin

Accept the defaults when prompted and this will install Webmin in /usr/local/ directory.

Now launch

http://:10000/

This should launch Webmin installed on the server.

Logon as the admin user specified during installation and check webmin works OK on the server.

Now, proceed to install Nagmin.

Install Nagmin

Download Nagmin-2.1.0 from the following sourceforge website:

http://downloads.sourceforge.net/nagmin/nagmin-2.1.0.tar.gz?modtime=1078099200&big_mirror=0

NOTE: Do not try to install Nagmin 2.2 at the first place as it does not have the setup script that runs the various SQL scripts and creates the Nagios Database and the tables for the Database.

Once downloaded, untar the nagmin-2.1.0.tar.gz

# tar -zxvf nagmin-2.1.0.tar.gz

Move the directory nagmin-2.1.0 to /usr/local/ and rename it as nagmin

# mv nagmin-2.1.0 /usr/local/nagmin

Now, launch the webmin to add the nagmin as a webmin module.

Launch

http://:10000

Click Webmin and then Webmin Configuration.

Click Webmin modules.

Select “from local file” option and and type the location as

/usr/local/nagmin/nagmin-2.1.0.wbm

and click Install.

This should install the Nagmin module and allow a link to launch Nagmin. Alternatively, click Servers then select “Nagmin Nagios Monitoring”

Now, it is advisable to upgrade to Nagmin-2.2.0 as this fixes a few installer errors in Nagmin-2.1.0

Upgrade Nagmin-2.1.0 to Nagmin -2.2.0

To upgrade, first make a backup of the /usr/local/nagmin directory:

# mv /usr/local/nagmin /usr/local/nagmin_bkp

Now, download Nagmin-2.2.0 from

http://downloads.sourceforge.net/nagmin/nagmin-2.2.0.tar.gz?modtime=1083196800&big_mirror=0

untar the nagmin-2.2.0.tar.gz

# tar -zxvf nagmin-2.2.0.tar.gz

Move the directory nagmin-2.2.0 and to /usr/local/nagmin directory

# mv nagmin-2.2.0 /usr/local/ nagmin

Once again, launch the webmin to add the nagmin as a webmin module.

Launch

http:// or HOSTNAME>:10000

Login as the admin user.

Click Webmin Configuration.

Click Webmin modules.

Select “from local file” option and and type the location as

/usr/local/nagmin/nagmin-2.2.0.wbm

and click Install.

This should install the updated Nagmin module (2.2.0) and allow a link to launch Nagmin. Alternatively, click Servers then select “Nagmin Nagios Monitoring”

Thats the deal… Have fun with Nagios Monitoring with Nagmin Administration.

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