Tag Archives: network

Nagios Mobile – Nagios on your (smart) phone \ tablet

Yesterday I have discovered a new addition to the Nagios family: Nagios Mobile.
It is a PHP application made by Hirose Masaaki and promoted by Nagios Enterprises.

From the author:
Nagios Mobile is a lightweight web interface, based on the Teeny Nagios project by Hirose Masaaki. Nagios Mobile is a PHP web-based application designed for Mobile and touch-screen devices.

You can find the application here:
http://exchange.nagios.org/directory/Addons/Frontends-%28GUIs-and-CLIs%29/Mobile-Device-Interfaces/Nagios-Mobile/details
And the install instructions here:
http://assets.nagios.com/downloads/exchange/nagiosmobile/Installing_Nagios_Mobile.pdf

That’s all,
Mihai out.

Using Nagios in a efficient way (in a generic install):

Nagios is a highly configurable monitoring platform. Basically it gives you the possibility to take any output and can monitor it!

It has a great community around it; it’s very well documented and has many, many plug-ins.

There is a free and a paid version available:

  • The Core version gives you the possibility to make the installation in any way you want, but requires some knowledge on how you can get the things done.
  • The paid version (current named Nagios XI) try’s to include a unified interface where the user can administrate the whole Nagios server in one interface.

Continue reading

A new monitoring tool is in town…

Watching the “Network Monitoring Application of the Year” vote on http://www.linuxquestions.org I have noticed a new Nagios / competitor: Shinken. The name describes a very sharp Japanese sword – associating the program with its large scale monitoring capabilities.

The software it’s written in Python and it’s compatible with the Nagios configuration. Also they say that they use fewer resources than the Nagios counterpart. The developer has put an accent on the Business rules, Cloud computing and “Very large monitoring capabilities”. Take a look at their features: http://www.shinken-monitoring.org/features/ Continue reading

Small routing script

In recent days I was confronted with a problem regarding the routing under Linux.

The request was to add a route on a Proxy ARP server.

The Linux OS does give you the possibility to do add a route, in an “automatic mode”, in ways like:

  • add a route on the interface configuration (it will be applied only when the interface will go on-line) – for example Ubuntu and SUSE Linux
  • add a route on the network start script
  • add a route in the static-routes file
  • add a route with a script on the ifup folder on the “/sbin/ifup” (here more details: http://www.comptechdoc.org/os/linux/howlinuxworks/linux_hlsysconfig.html)

But because this was a complicated setup I was forced to use a bash script under the “/sbin/ifup”.

The script looked like this:

#!/bin/sh
ROUTE_CMD=”/sbin/route”
DMZ_INTERFACE=”eth0″               #we should have an IP address on this network – 85.14.228.0/24
LAN_INTERFACE_1=”eth1″          #we should have an IP address on this network – 10.12.0.0/24
EXTIPADDR=”85.14.228.254″     #an dmz gateway
INTIPADDR=”10.12.0.254″           #all the internal traffic

$ROUTE_CMD add -host 85.14.228.248 gw $EXTIPADDR $DMZ_INTERFACE
$ROUTE_CMD add default gw $INTIPADDR $LAN_INTERFACE_1
exit 0

I hope that this is going to help you,

Mihai out!

Configuring the radius authentication with Cisco Wireless Control System 6.0.196.0

When I tried to make a radius based authentication system with our Cisco Wireless Control System (WCS) I was hit by the lack of documentation of this feature. The only valid links I have found is this one:

https://supportforums.cisco.com/thread/339057?tstart=0

It is pretty old (Dec 12, 2007) & it did not fitted entirely with my new WCS installation. And as a result I made this one so anybody else could cover the holes. Continue reading

I know what “I” did last summer!

Having a little time off from the day to day responsibilities I usually have at my work place, last summer I decided to build the map of Italy with all the offices, for our Help Desk.

So, with the magic of Wikipedia (http://en.wikipedia.org/wiki/Italy), Gimp and Mk-livestatus I have done in NagVis, a dashboard that displays live checks of the network and server software. This map is displayed on a TV in the Help Desk room, so that everyone can see the network status. Continue reading

Icinga VS Nagios – the matrix:

At almost a year after the version RC 1.0 and after three months from the first comparison (the YouTube film http://www.icinga.org/2010/05/25/youtube-icinga-vs-nagios-whats-the-difference/) the Icinga team added a new table which compares the two versions of “Nagios”. You can download it from here: http://www.icinga.org/wp-content/uploads/2010/08/Icinga-vs-Nagios-matrix1.pdf

Also be sure you checked out the web demo http://web.demo.icinga.org/icinga-web/ and the Nagios-portal, a forum for the Icinga \ Nagios administrator http://www.nagios-portal.org/wbb/index.php .

Mihai out.