Linux tutorials and more...
HowTo mount cdrom in linux
CD's and DVDs are using iso9660 filesytem. As any other operating system, Linux is also able to read data from standard iso9660 filesystem. Let's see how we can mount CD-ROM or DVD-ROM with use of mount command.
Detecting CD-ROM/DVD-ROM drive
If we are not sure which block device is our DVD-ROM or CD-ROM we can find it out  by running a following wodim command:
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SSH login without password
Public key authentication allows you to login to a remote host via the SSH protocol without a password and is more secure than password-based authentication. Try creating a passwordless connection from linuxconfig.local to linuxconfig.org using public-key authentication.
Create key
Press ENTER at every prompt.
linuxconfig.local$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/user/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/user/.ssh/id_rsa.
Your public key has been saved in /home/user/.ssh/id_rsa.pub.
The key fingerprint is:
b2:ad:a0:80:85:ad:6c:16:bd:1c:e7:63:4f:a0:00:15 user@host
The key's randomart image is:
+--[ RSA 2048]----+
| E. |
| . |
|. |
|.o. |
|.ooo o. S |
|oo+ * .+ |
|++ +.+... |
|o. ...+. |
| . .. |
+-----------------+
linuxconfig.local$
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Debian GNU/Linux 4.0 "etch" Installation
Installation prerequisites
It is said that the installation of Debian Linux is know as one of the hardest among all Linux Distributions. In this article we will see that this is just a myth, in fact it is very easy, even for beginners. All you need is basic understanding of disk partitioning techniques and a downloaded/burned netinstall image which suits the hardware architecture you intend to install onto Debian Linux, and a internet connection. Of course there are other requirements, such as a working PC with a CD-ROM drive and free/unpartitioned space on your hard disk. :'''NOTE:''' Do not download all Debian GNU/Linux 4.0 installation disks! You only need the first CD or go to netinstall CD.
Beginning of the installation
Make sure you set your BIOS to boot from the CD-ROM. Once you boot Debian, it will welcome you with an Introductory Screen similar to the one below.
At this stage you can navigate with the function keys F1-F10:
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Howto mount USB drive in Linux
The Office Worker's Guide to a USB Thumb Drive
Example
Detecting USB hard drive
After you plug in your USB device to your USB port, linux will add new block device into /dev/ directory. At this stage you are not able to use this device as the USB filesystem needs to be mouted before you are able to retrieve any data. To find out what name your block device file have you can run fdisk command:
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Vim Tutorial
Introduction
This tutorial has been written for both vi and vim. It starts with real basics, such as cursor navigation and ends with more advanced techniques like merging files.
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For every section of this tutorial there is a short video with hints to help you understand how vim / vi works. Even that I have divided this tutorial into parts from novice to the expert user, there is plenty more what vim can do to make your work with vim editor easier and more efficient.
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However completing this tutorial you will give sufficient knowledge about vim / vi and its features for your daily tasks.
Vim Novice level ( Vim Basics )
Moving cursor around
In vim you can move cursor around with following keys h, l, k, j which is left, right, up and down respectively. You can move cursor around also with arrow keys, however this is possible only if they are available. Vim was designed for all kinds of terminals where arrow keys may not be available for you. Moreover, once you get used to using vim with h, l, k, j you will move more quickly than using arrow keys. Open some text file and try using those keys now:
vim yourfile.txt
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HowTo configure NFS
Introduction
The Network File System is certainly one of the most widely used network services. Network file system (NFS) is based on the Remote procedure call. It allows the client to automount and therefore, transparently access the remote file systems on the network.
Scenario
In this scenario we are going to export the file system from the linuxconfig.org (IP address 10.1.1.200) host and mount it on linuxconfig.local(IP address 10.1.1.100).
Prerequisites
At this point, we assume that the NFS service daemon is already installed on your system, including portmap daemon on which NFS setupt depends. Moreover, your system needs to support the NFS file system.
$ cat /proc/filesystems
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