Nagios Fan For Hyper-v 214j5y

FAN 2.4 Hyper-V Installation By Mark Achel Gagalac | October 11, 2014 0 Comment FAN 2.4 Hyper-V Installation. FAN or Fully Automated Nagios is the easiest way to install nagios in my humble opinion. I’ve been using nagios for years and I could say its the best opensource network monitoring tool available as of writing this blog. The official website of FAN can be found here.

FAN integrated tools upon installation:    

Nagios: core monitoring application. Nagios plug-ins: plug-ins to monitor different equipments. Centreon: Web interface for Nagios (Centreon is one of the best for this purpose!) NagVis: advanced mapping (geographical, functional, by services…) You can install FAN in a box or other virtualization application but in this tutorial I will show you the step by step guide on how to install it on Hyper-V. The default installation of FAN in Hyper-V has errors, We need to tweak some settings in able for it to run in this virtualization. Just in case you dont know. Here is the error of the default installation of FAN in Hyper-V.  

switchroot: mount failed: No such file or directory Kernel panic – not syncing: Attempted to kill init!

Okay Lets start..   

Create a virtual guest using Hyper-V. the FAN stable version ISO here. Mount the ISO and specify the specs to be used in this operating system.

Recommended system requirements   

20-50 GB plus the required disk space recommended essentialy for /var. Disk space needed by mysql and rrd files 2 processors core or hyper-thread for each virtualized U. 2 GB of RAM.

Power up the Virtual machine and begin the installation.

Choose a Language.

Select Keyboard Type.

Remove all partitions on selected drives and create default layout.

Accept the warning and proceed.

Select your Location and click on Next.

Setup the root and click on Next.

Reboot after the installation. Do not unmount the installation ISO yet.

Enter the rescue environment by issuing the command; 

linux rescue

Select Language.

Select Keyboard Type.

Start up the network interface.

Continue..

Your system has been mounted under /mnt/sysimage

Enter the following commands to check the version of kernel installed.  

/mnt/sysimage cat /etc/grub/conf

This is the confusing part. Replace the kernel version by issuing this command; mkinitrd /boot/initrd-2.6.18-348.1.1.el5.img 2.6.18-348.1.1.el5 –preload hv_storvsc – preload hv_vmbus –preload hv_utils -f Thats 2 dashes before “preload”. 2 dashes. – – See screenshot below. 

Eject the installation ISO from your Hyper-V Media Drive and reboot the machine by issuing exitcommand 2 times.

The installation of FAN is now finished. as root with the you specify during installation.

Configure the network of your machine. Just in case you need to go back in this option. Just issue thesetup command.

Edit your network card preferences.

Setup the Static IP configuration.

Edit the DNS configuration.

Save and Quit.

Restart the network interface and your IP address.  

service network restart ifconfig

Now open a browser in your network and start configuring the FAN

Default Web Access: Address: http://ipaddressofyourFANserver/ The default credentials for Nagios, Centreon and Nagvis would be:  name: nagios  : nagios

By following the step by step instructions and the screenshots provided above, you now have a Fully Automated Nagios installed in your network. Start adding devices and monitor your network. Enjoy! For frequently asked questions about how to configure FAN, You can visit their official website about FAQ’s in here.