WinRar Archive for LinuxBox

I've recently searched Rar extract software for Linux, by Rar Labs.

You can directly download official WinRar  files:

It has only Command Line Interface.

     1.)     Rar 4.01 for Linux

     2.)     Rar 4.01 for Linux x64

     3.)     Rar 4.01 for FreeBSD

Steps to install :

1.)   Download any required tar.gz file & Extract it.

2.)   reach there using terminal.

3.)   type "make".

That's all. now type "rar" on terminal and it'll show you all possible hints.

Example :  To extract any rar file.

"rar e abc.rar "

this will extract all files from abc.rar in same directory.

Mozilla lays out goal for multi-process FireFox

The non-profit organization, Mozilla, has laid out plans for the engineering behind FireFox, with the aim to make the browser spread even more of its workload between multiple processes.

Mozilla's Chirs Blizzard mentions in a blog post : "What this means is that every release of FireFox will get faster, more stable and have better multi-web page interactive performance even if it doesn't include support for multiple processes. But we know that in order to get across some hurdles, we're going to need to invest in the multi-process model. That's what this post is about. Multi-process is not a panacea for any of these topics, but it does give us a leg up on some of the more systemic problems."

Power Blogging with WordPress Plug-ins

The power of WordPress lies in its many plus-ins, which can greatly enhance functionality. Understanding the plug-in infrastructure and equipping your WordPress site with them, gives you an edge by getting a better ranking with search engines, and hence, the deserved attention. Ranking apart, plug-ins improve ones blogging experience ten-fold. This article recommends plug-ins available only from the WordPress database, and that have been selected based on my personal usage.

This is not a how-to article on installing plug-ins for WordPress. If you are a newbie, you can refer to the link in the References section for information on how to install WordPress plug-ins. The plug-ins I recommend can be used directly with a compatible WordPress set-up, or a similar plug-in can be picked up from the WordPress plug-in site. Naturally, you are required to have administrator privileges on a functioning WordPress set-up. Before we start, here are a couple of things to remember:

• Compatibility needs to be checked before installing plug-ins.
• Since these open source plug-ins are provided without a warranty, any critical data needs to be backed up before you use them. You are solely responsible for any potential damage or loss to your personal data.

The List

Quick Cache

This plug-in caches the pages of your site. Since WordPress is database-driven, on every request there are a bunch of connections to the database. Repeatedly querying the database for the same old content is an awful waste of processing power. 'Quick cache' serves the request from a cached copy of unchanged pages, and improves response time. Configuration options let you tweak what to cache, and what not to. The minimum requirement is WordPress version 3.1.

Captcha

As per Wikipedia, Captcha stands for 'Completely Automated Public Turing test to tell Computers and Humans Apart'. This plug-in ensures that all comments on the site are entered by a human, by including math puzzle on the page that human brain must solve before entering the answer. This prevents spam bots from posting comments on the site. The minimum required is WordPress version 3.1.

Digg Digg

We definitely want to share information on our blogs through social media channels. This plug-in adds that capability for various social media site like Facebook, Twitter and Buzz. Users that click the enabled social media icon will be prompted to share the current blog on their social networking profiles. Various social media buttons can be enabled via the settings. The minimum required is WordPress version 2.3.

Hitcounter

To count how many people have visited your blog, use this plug-in. It stores and retrieves the count from a database and displays it on the blog. The WordPress version required is 2.3 or later.

Statpress Visitors

This is one of the most useful plug-ins for statistics, beyond those of Hitcounter. Some of the details it collects includes information on visitors, robots from Google or other search engines; keywords in search engines; browser types and various other traffic to your site. It is highly customisable, with various type of statistics. The minimum required is WordPress version 2.5.

Comment Rating

This plug-in lets users rate the comments for a particular blog, through the use of 'like' and 'dislike' buttons. The most-liked comments are displayed accordingly. The rating is also displayed beside each comment. The plug-in allows only one vote per IP address, and tries to prevent fraud. Various customisable options can be explored. The minimum required is WordPress version 2.3.

WordPress automatic online backup

The best way to avoid losing your blog is to back it up online. A free online account at wordpressbackup.com provides you the necessary space; this plug-in provides the necessary infrastructure to automate this process. Backups can be restored at any time. I recommend this plug-in for all those who value their data. The minimum required is WordPress version 2.1.

Coding a new plug-in

If you think the existing plug-ins do not meet your specific requirements, you can pretty much code your own. Check the link in References for instructions.

All-in-One SEO pack

The best way to attract visitors to your blog is to make it visible to a search engine. This plug-in does everything to optimize your blog in order to make it visible to search engine and attract visitors. The minimum requirement is WordPress version 2.8.

Google Upgrades WebP image format

Google has launched an improved version of the WebP image format, which is designed to reduce the image size on the web and speed up browsing. WebP is now natively supported in Chrome and Opera. Google products including gmail and Picasa Web Albums, have also added support to WebP so you can share, send and receive WebP images. WebP support is also coming to AppEngine. In addition, Google Instant previews now store images in WebP to reduce its storage needs. Google says it is working on transparency (alpha channel) support and will ass it to the "... next stable version of the codec."

The WebP format was introduced by the company last year in 2010. "WebP's compression algorithms have been significantly improved while remaining completely compatible with the previous releases," Richard Rabbat product manager and Pascal Massimino, a progrmmer as Google started in a blog post. "On the decoding side, we have integrated a fancy upsampler. Fancy upsampling reduces the pixelation of strong edges. You can see this feature when you zoom in," the post added.

The improved version will also include technology that will allow the image-data to be internally decoded during its download. With this feature, users won't have to wait for the entire file to download before being able to watch it.

Set up two different IP addresses on a single network interface controller (NIC)

The example given below is based on a wired Ethernet device.

Step 1:  The settings for the first IP address should be as specified below:

               $cat /etc/sysconfig/network-scripts/ifcfg-eth0

               DEVICE=etho

               BOOTPROTO=static

               BROADCAST=192.168.1.255

               IPADDRS=192.168.1.155

               NETMASK=255.255.252.0

               NETWORK=192.168.1.0

               ONBOOT=yes

Step 2:  Add the set of parameters given below to the "ifcfg-eth0:1"  file to set up the second IP address.

               $cat /etc/sysconfig/network-scripts/ifcfg-eth0:1

               DEVICE=etho:1

               BOOTPROTO=static

               BROADCAST=192.168.99.255

               IPADDRS=192.168.1.182

               NETMASK=255.255.252.0

               NETWORK=192.168.1.0

               ONBOOT=yes

Now, ypu can ping and check both IP address.

The Best Open Source Graphics Programs

GIMP

The GNU Image Manipulation Program (GIMP) is one of the oldest and most successful open source applications. It's widely used by photography enthusiasts and open source enthusiasts who are looking for an alternative to Photoshop. While it's not quite as full-featured as Photoshop (and enthusiasts can explain in great detail where GIMP has shortcomings for high-end photo editing), GIMP offers just about everything that a small business owner would need for image retouching, editing and so on.

GIMP has a rich set of filters and tools to manipulate photos for print or Web publishing. Whether you need to do some simple re-sizing, heavy retouching or creating images from scratch, GIMP is the tool of choice for working with bitmap images.

If you already know Photoshop, you might want to check out GIMP shop. GIMPshop is a modified version of GIMP that replicates the feel of Adobe Photoshop. It still works like GIMP, but it might be more comfortable for people who have experience with Photoshop, but don't want to pay the stiff license fees for it.

Here's another reason to love GIMP. It has a comprehensive user manual and a fair amount of help online. GIMP is available for Windows, Linux and Mac OS X -- though you'll need to be sure you have X11 installed as well. I believe X11.app is installed by default on Mac OS X 10.5 (Leopard) and 10.6 (Snow Leopard).

Root Password Recovery

If you forget the root password, you can change it by entering the system in single user mode, as shown below.

1.) To enter in single user mode, restart the system, and select your Linux OS
     (do  not press Enter on it).
2.) Now, press 'e' on the kernel line to edit the kernel parameters.
3.) Add 'S' as the kernel parameter ( do not add quotes).
4.) Press Enter to escape from editing; Now, press 'b' to boot.
5.) You'll on the root shell. Now It's time to change the password.

#passwd

You'll now be asked for the new password.


If you have forgotten the grub password, then use any Linux Live CD. Go to the specific drive that has your Linux/boot and edit grub.conf and comment out the password line to remove the password.

Restor Linux booting

If you are in the habit of trying out the various flavours of Linux, then there may be times when the boot sector is lost or overwritten by Windows. Even the SUSE Repair or Rescue option do not help. I've always followed this method to restore booting.
Using the Linux installation CD/DVD, go to Shell and type grub. Then issue the following commands :

#root(hd0,X)                  // where X is one minus the Linux Root Partition number

#setup(hd0)

#quit

After rebooting, you will be back to Linux.

View Information about the motherboard and CPU

Use the following command as root or sudo

# dmidecode | more

dmidecode's purpose is to report  information about your system's hardware as described in your system BIOS according to the SMBIOS/DMI standard.

Making Mozilla Firefox faster

We all know Firefox is a memory hogger. To speed up Firefox, however, you can follow the steps shown below :

1. Open Firefox and in the address bar, type in 'about:config'.
2. Click on the button : "I'll be careful, I promise".
3. Use the search bar located on the page to look for 'network.http.pipelining' and double click on it to set its value to 'True'.
4. Create new Boolean value named 'network.http.pipelining.firstrequest' and set that to 'True', as well.
5. Find "network.http.pipelining.maxrequests" and double click on it. Then change its value to 8.
6. Look for "network.http.proxy.pipelining" and set it to "True".
7. Create two new integers named "nglayout.initialpaint.delay" and "content.notify.interval"  ; set them to "0".
8. Now, restart your browser to experience the difference.

Softwares for Linux

Browsers:

We all know that Mozilla Firefox is default and one of the powerful browser.
But there are some other browsers are available for Linux.
You can download from site links given with browsers name.

1. Google Chrome
2. Sea Monkey
3. Opera 

Softwares:
  1. Wine:
          For Fedora Users : yum install wine
  2. Blue Fish:
         Download file from here.
  3. DosBox :
         Download file from here.
  4. Filezilla  and Gftp :
        Search Fedora Users from Add/Remove software. It's easy to find out.

I'll update this post later with new softwares. If you want any software and have new software then post them in comment.