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Hi there! Welcome to my blog. My name is Ivan. I am a Dutch IT Professional working as Principal IT Consultant. Read more about me..

News, Problem Solutions and Other Interesting Information...

Use Cacti to monitor your network latency

Posted by Ivan
/ February 3, 2008 / 33 Comments

If you are managing and monitoring a network you will probably be interested to keep an eye on the latency of your network links. Especially for those links which are connected with a dedicated internet connection and a IPSec VPN tunnel to the datacenter. Latency is predictable but for non...

Posted in Cacti, CentOS
CentOS Cacti Appliance (CactiEZ) and snmp configuration

Posted by Ivan
/ January 8, 2008 / 1 Comment

I am running CactiEZ VMWare appliance for a while and couple of graphs I was looking for were not integrated in the SNMP configuration. CactiEZ is based on CentOS linux distribution. Verify SNMP Daemon is running Rename the default configuration file Create new file with your own SNMP configuration Reload...

Posted in CentOS
CentOS how to install VMWare tools?

Posted by Ivan
/ November 21, 2007 / 4 Comments

If you are working with a virtualization platform then most of the time some components are needed for host integration. I have installed my CentOS virtual machine on a VMWare Server host and now I want to install the VMWare tools. How to install VMWare tools on a CentOS operating...

Posted in CentOS
CentOS how to change hostname?

Posted by Ivan
/ November 21, 2007 / 37 Comments

I personally prefer to install CentOS as my linux distribution. Today I needed to change the hostname of my virtual guest machine running CentOS. How to change hostname of a CentOS system? There are several ways to do that but I am using the old way. VI is my friend and still...

Posted in CentOS