Install latest OpenOffice in RHEL | CENTOS | Fedora 32 Bit and 64 Bit

In Fedora you will get this on from your installation source dvd. But RHEL / CNETOS 5 and 6 you won't be getting this, so you will need to download this and install. The Open-Office packages are different for 32 bit and 64 bit versions.

Google Chrome in RHEL 6 | CENTOS 6

Installing Google Chrome on RHEL 6 / CENTOS 6 is very easy. Just you should download the rpm package from google and just install. The interesting fact is that it will install normally without requiring you to install dependencies.

For 32 | 64 bit versions of RHEL / CENTOS / Fedora / Debian / Ubuntu click here.

Creating Swap space in Linux / RHEL / CENTOS / Fedora

Creating Swap space

As mentioned before, a swap space can be a partition or a file with pre-allocated space.

Swap Space in Linux / RHEL / CENTOS / Fedora

What is a Swap space?

• Swap space is harddisk space that extends system RAM.

Swap space or virtual memory is hard disk space that acts as an extension of system RAM. Of course, due to the relative differential in data access on RAM versus hard disk, we prefer not to use swap space if it can be avoided. Nonetheless, it is vital to the proper functioning of a typical Linux system that some swap space  be made available.

Password protect GRUB / Lock Single User Mode In Linux / RHEL / CENTOS

The primary reasons for password protecting a Linux boot loader are as follows:

1. Preventing Access to Single User Mode — If attackers can boot the system into single user mode, they are logged in automatically as root without being prompted for the root password.

Rescue Linux Installation in RHEL / CENTOS / Fedora

Rescuing a Linux system is an easier task. There are several aspects of rescuing a Linux system.
 
Here we are going to see how to rescue an installed Linux system when the GRUB is deleted.

Enter Single user mode in Linux / RHEL / CENTOS / Fedora

If you are using GRUB bootloader

• Select the particular kernel to boot in (use up and down arrows in the GRUB splash screen)
• Now you will find an option "press a to append..". So press the key "a".
• Now press the space key to add at the bottom of that line.
• Append the word the "s" or "single" to the end of the kernel line.
• Press Enter

Change / Hack the Root password in Linux / RHEL / CENTOS / Fedora

Forgot root password

Suppose you want to get into a Linux system. You know nothing about the existing user's or their passwords. You have no idea about these things. Then what will you do??
The only thing you know that the user root exists. So we must find a way to get the root's password.

NTFS support in Linux (RHEL / CENTOS)

NTFS file system is not supported in RHEL 5 or 6. How do you I enable NTFS support?

To enable NTFS support we need to do a couple of things.

First of all enable the EPEL repo. Click here to learn How to enable the EPEL repo.
Then install the package "ntfs-3g" using yum.

Enabling EPEL repo in RHEL / CENTOS

EPEL - Extra Packages for Enterprise Linux.

What is Extra Packages for Enterprise Linux (or EPEL)?
Extra Packages for Enterprise Linux (or EPEL) is a Fedora Special Interest Group that creates, maintains, and manages a high quality set of additional packages for Enterprise Linux, including, but not limited to, Red Hat Enterprise Linux (RHEL), CentOS and Scientific Linux (SL).
EPEL packages are usually based on their Fedora counterparts and will never conflict with or replace packages in the base Enterprise Linux distributions. EPEL uses much of the same infrastructure as Fedora, including buildsystem, bugzilla instance, updates manager, mirror manager and more.

Authentication / Password Protection in Apache

There are many ways you can password protect directories under Apache web server. This is important to keep your file privates from both unauthorized users and search engines (when you do not want to get your data indexed). Here you will see the basics of password protecting a directory on your server. You can use any one of the following method:

Securing Apache Web Server with Encryption

In this blog we are going to discuss about encrypting communications to web server  using TLS/SSL.

Step 1:  Install mod_ssl and httpd

# yum -y install mod_ssl httpd

Basic web server configuration in RHEL / CENTOS

Packages required – httpd

                               httpd-devel

                               httpd-manual

Daemon - /usr/sbin/httpd

Script -     /etc/init.d/httpd

Ports -       80/tcp (http) , 443/tcp (https)

Configuration - /etc/httpd/*

                          /var/www/*

DNS / BIND Server Configuration in RHEL 6 / CENTOS 6

What is DNS?
DNS is called as Domain name system. DNS is name resolution service which resolves human friendly name (such as Example Web Page) into IP  address (192.168.0.10) DNS is a hirarchical distributed database that contains
resolving of domain name into IP address.

Why DNS?
Because people and applications try to connect the network computer by  specifying name. DNS has superior scalability,security and compatibility with internet.

Install Vuze on Linux

Vuze (previously Azureus) is a BitTorrent client used to transfer files via the BitTorrent protocol. Vuze is written in Java, and uses the Azureus Engine. In addition to downloading data linked to by .torrent files, Azureus allows users to view, publish and share original DVD and HD quality video content. Content is presented through channels and categories containing TV shows, music videos, movies, video games and others. Additionally, if users prefer to publish their original content, they may earn money from it. Azureus was first released in June 2003 at SourceForge.net, mostly to experiment with the Standard Widget Toolkit from Eclipse. It later became one of the most popular BitTorrent clients.
The Azureus software was released under the GNU General Public License, and remains as a free software application.

Install JDownloader in RHEL / CentOS 5

JDownloader is open source, platform independent, and written completely in Java. It simplifies downloading files from One-Click-Hosters like Rapidshare.com or Megaupload.com - not only for users with a premium account but also for users who don't pay. It offers downloading in multiple parallel streams, captcha recognition, automated file extraction, and much more. Of course, JDownloader is absolutely free of charge. Additionally, many "link encryption" sites are supported - so you just paste the "encrypted" links and JD does the rest. JDownloader can import CCF, RSDF and the new DLC files. 

Install Firefox 5 on CentOS 6

By default CentOS 6 comes with firefox 3.6.
Here's how to Install Firefox 5 on CentOS 6:

1. Log on as root.
2. Download firefox-5.0.1.tar.bz2 or later from http://www.getfirefox.com to Downloads folder.
3. Also download an appropriate version of libstdc++.so.6, in this case the version from Fedora 13 i686 will work:

Install VLC Media Player on Fedora 15

VLC media player is a free and open source media player and multimedia framework written by the VideoLAN project.
VLC is a portable multimedia player, encoder, and streamer supporting many audio and video codecs and file formats as well as DVDs, VCDs, and various streaming protocols. It is able to stream over networks and to transcode multimedia files and save them into various formats.

Install Adobe (Acrobat PDF) Reader on Fedora 15/14, CentOS/ Redhat (RHEL) 5.6/6

 Adobe Acrobat is a family of application software developed by Adobe Systems to view, create, manipulate, print and manage files in Portable Document Format (PDF). All members of the family, except Adobe Reader (formerly Acrobat Reader), are commercial software; Adobe Reader however, is available as freeware and can be downloaded from Adobe's web site. Adobe Reader enables users to view and print PDF files but has negligible PDF creation capabilities.

Install Google Chrome on CentOS5 & RHEL5

Google Chrome is a web browser developed by Google that uses the WebKit layout engine. It was first released as a beta version for Microsoft Windows on September 2, 2008, and the public stable release was on December 11, 2008. In September 2008, Google released a large portion of Chrome's source code, including its V8 JavaScript engine, as an open source project entitled Chromium. This move enabled third-party developers to study the underlying source code and to help port the browser to the Mac OS X and Linux operating systems.Chromium implements a similar feature set as Chrome, but lacks built-in automatic updates, built-in PDF reader and Google branding, and most noticeably has a blue-colored logo in place of the multicolored Google logo.