How do I increase the capacity of my LVM  partitions in linux if I add another disk or raid array You need to add the new physical volume, extend the volume groups, increase the logical volume and resize the file system Create the Partition with id LVM Linux sd(x) where x is the new disk a,b,c,d [continue...]

How do I check LSI MegaRAID controller and raid array status on a  linux server Use the LSI MegaRAID megarc command line cli tool Download the megarc tool Download the megarc.bin utility which can be downloaded from LSI website at http://www.lsi.com/downloads/Public/MegaRAID Common [continue...]

Scenario / Question: How do I get my VirtualBox Guest VM’s to start and stop when the host system reboots, shutdown, or starts. Solution / Answer: Create an init.d script so that VirtualBox Guest VM are controlled as a system service. Install VirtualBox VM Service script The original script [continue...]

Scenario / Question: I have a computer connected to external network with one network card and connected to internal network with another network card. I want to have all external traffic use one nic and all internal traffic use another nic. Solution / Answer: If you do not require NAT or [continue...]

Scenario / Question: How do I modify the parameters of my VM in VirtualBox from the command line Solution / Answer: Use the tool VBoxManage Install VirtualBox “Install VirtualBox without GUI or Headless” Create a VirtualBox VM guest “VirtualBox Headless VM” VirtualBox [continue...]

Scenario / Question: How do I control my VirtualBox VM’s from the command line Solution / Answer: Use the tool VBoxManage Install VirtualBox “Install VirtualBox without GUI or Headless” Create a VirtualBox VM guest “VirtualBox Headless VM” Controlling the VirtualBox [continue...]

Scenario / Question: How do I control VirtualBox from the linux command line CLI Solution / Answer: Use the included tools VBoxManage and VBoxHeadless First Install VirtualBox from this post: “Install VirtualBox without GUI or Headless” VBoxManage for controlling VirtualBox on the [continue...]

Scenario / Question: How do I install VirtualBox on a linux server that does not have a GUI installed or Xorg. Solution / Answer: VirtualBox can be installed on a headless server, and can be controlled with VBoxManage and VBoxHeadless from the command line. Install VirtualBox 3.0 There are two [continue...]

How do I get Lighttpd to work with PHP Instal Lighttpd web server Follow the following tutorial: “Lighttpd and Centos 5” Add PHP support to Lighttpd web server Install lighttpd-fastcgi and php-cli # yum install lighttpd-fastcgi php-cli Configure the Config files to enable PHP for [continue...]

What is Lighttpd “Security, speed, compliance, and flexibility — all of these describe lighttpd (pron. lighty) which is rapidly redefining efficiency of a webserver; as it is designed and optimized for high performance environments. With a small memory footprint compared to other [continue...]