Once you downloaded a Raspberry PI *.img file you may have a reason to look inside the image. Here is a shot config on how you do it:

First get your image file:

# ls -lh
total 1.9G
-rw-r--r-- 1 root root 1.9G Apr 24 14:35 2013-02-09-wheezy-raspbian.img

Hostgator VPS generates apache's httpd.conf file automatically. Therefore, any new lines you add to apache's configuration file will be overwritten. In order to add new configuration settings we need to include a configuration. Open up your main config file /etc/httpd/conf/httpd.conf and search for a virtual host with the domain name you wish to edit. Last two lines of your virtual host should look similar to this:

# To customize this VirtualHost use an include file at the following location
#    Include "/usr/local/apache/conf/userdata/std/2/linuxcon/linuxconfig.org/*.conf"

uncomment the Include line by remove leading "#".

Next, create a directory to reflect the Include location:

# mkdir -p /usr/local/apache/conf/userdata/std/2/linuxcon/linuxconfig.org/

What is DHCP?

Anyone with a basic knowledge of computer networking knows that for two hosts to communicate on the same network using TCP/IP model, both hosts need to have a unique IP address. There are two ways on how any given host on your network can obtain an IP address.

One way is to manually configure the network interface and assign an IP address by hand. The manual network configuration is called static configuration, which means that host's IP address does not change its IP address unless changed manually by the user or system administrator. If your company network includes more than 1000 hosts, the job of configuring each host with a static IP address becomes tiresome and more importantly extremely inefficient.

Another way to assign your network hosts with a proper IP address regardless of the actual network size is to assign an IP address to each host automatically. To perform an automatic host's IP configuration is where DHCP ( Dynamic Host Configuration Protocol ) comes handy.

The DHCP protocol lets a DHCP client, that is your network host to lease network configuration parameters such as an IP address. In fact, lease parameters are not limited to IP address only as they may also include the following configuration settings:

  • IP addresses and network masks
  • Domain Names servers ( DNS )
  • Default Gateways
  • WINS servers
  • Syslog hosts
  • Proxy servers
  • NTP servers
  • X Font servers
  • Syslog hosts


The following tutorial explains how to mount USB drive in Linux system using terminal and shell command line. If you are using desktop manager, you will most likely be able to use it to mount USB drive for you.

Mounting USB drive is no different than mounting USB stick or even a regular SATA drive. The video example below will illustrate the entire process of mounting USB drive on Linux system. To gain more understating read the subsequent paragraphs.


This article describes the basic logic behind the Linux logical volume manager by showing real examples of configuration and usage. Although Debian Linux will be used for this tutorial, the same commands can be applied on other Linux distributions.

In this tutorial you will learn:
  • Basic lvm concepts
  • How to manage phisical volumes, logical volumes and volume groups

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