and How to install CentOS 6 for Servers & Desktops ~ all in all

How to install CentOS 6 for Servers & Desktops

Step by step guide to on how to install CentOS 6


Linux (in this case 64 bit) from scratch on a new machine, the install type is minimal which is PERFECT for servers, no GUI will be installed and the installation will be as lean as possible. This is how I install all my Linux servers, this guide can also be used to install CentOS on desktop or laptops, you simply select a different option at step 18.




How to install CentOS 6 for Servers & Desktops



  •     Set your computers BIOS to boot form CD / DVD
  •     Insert the CentOS 6 CD or DVD
  •     When presented with the following screen press enter on Install or upgrade an existing system.
  •     
  •     
  •     You will now be presented with a CD Check, I always skip this step… I
  •     live life on the edge when it comes to media checking on Linux
  •     installs. However you might want to check the media.
  •     
  •     
  •     You will now see some black and white text on your screen as your
  •     computer loads the X11 environment for the CentOS install, after 30
  •     seconds or so you will be presented with the CentOS GUI installer, click
  •     next.
  •     Select your Language, I am British (please no jokes about drinking tea on Twitter…) so I would select English (English).
  •     
  •     Select your keyboard type
  •     
  •     Storage type, as I am installing on my local hard drive I selected
  •     “Basic storage type” if you are using iSCSI or similar technology now
  •     would be the time to set it up.
  •     
  •     As this is a clean install and the drive has never been formatted
  •     before I got the following Initialize drive warning, you might get the
  •     same if your drive (or virtual hard disk) is brand new.
  •     
  •     Set the hostname for your Server
  •     
  •     Set your timezone / location
  •     
  •     Set your root password, something sensible please… Don’t set weak
  •     dictionary passwords or  you will get hacked by a 13yr old russian super
  •     hackz0r… You might want to check out my guide on how to secure SSH.
  •     
  •     You will now be set with a bunch of options for your disk
  •     partitioning, as this is a new fresh install I selected the top option
  •     “Use All Space” chose the relevant option for your setup and tick the
  •     review and modify partition layout.
  •     
  •     You will now see your partition table laid out, now is the time to
  •     modify it if required. If this is a server I would suggest you create
  •     some different partitions for /home and /var. These are the two
  •     partitions that crash Linux servers, /home because users fill their home
  •     drives and causes the system to crash and /var because the log or ftp
  •     directories fill up and crash the server.
  •     
  •     Format warning, click on Format (this will delete your data.
  •     
  •     You will now see a warning about writing the changes to disk, click on Write changes to disk.
  •     
  •     Boot loader options, I left this as default you might want to set a boot loader password.
  •     
  •     The next part is important, for servers I ALWAYS select minimal,
  •     this installs a minimal setup which is ideal for servers, if you are
  •     installing for a desktop you might want to chose one of the other
  •     options. I would avoid the chose everything option as this will create a
  •     bloated system that will be more susceptible to hackers.
  •     
  •     CentOS 6 will install
  •     
  •     CentOS 6 has installed, congrats
  •     
  •     Reboot and login as root
  •     
  •     Update the system using “yum update”

    

That’s it your done! Go forth and setup your server for what ever services you require, Asterisk, LAMP etc.

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