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...]

How can I easily manage iptables ? With a GUI based iptables configuration program called FireStarter. Note: If you installed your server without a GUI then FireStarter is not for you. Firestarter RPM Centos 6 As the writing of this article I could not find an RPM package in [continue...]

How do I manage Hardware Raid on a IBM ServeRAID 8k/8k-l8 from centos linux Install ServerRAID Manager from IBM. For GUI interface use the RAIDMON and for CLI use arcconf How to get ServerRAID Manager for Linux There are two ISO’s for download. One is the ServerRAID Support CD and the Other [continue...]

Question: How do I setup Centos to be an iscsi san server Answer: Install scsi-target-utils How to install scsi-target-utils # yum install scsi-target-utils Configure service to start on boot # service tgtd start # chkconfig tgtd on How to create iscsi drives called targets iSCSI is comprised of [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: 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...]