Opera is a popular web browser, developed by opera Software. Opera web browser is very popular among small devices such as mobile phones, but this post is based on the desktop version of opera web browser. Opera web browser is available free under proprietary license (with some open source components), for all common operating systems such as GNU/Linux distros (e.g Ubuntu 11.04/10.10.., Linux Mint, Fedora, OpenSuse etc), Windows 7, Mac OS X, FreeBSD.
Ubuntu users primarily uses Google Chrome and Mozilla Firefox, but Opera is also a good choice, specifically if you have used or just give it a try (Just for Fun!), you might like some new and exciting features in Opera 11.10 – the latest version of Opera for Linux Distributions. A special features named – ‘Opera Turbo’ seems impressing because it allow you to browse five times faster (5x, it seems cool) than the normal after enabling the opera turbo mode (You can switch to/from Opera Turbo Mode in single click, using the turbo button at bottom of the browser); specifically developed for the users who surf with slower internet connection. In this post, you will learn – how to install opera 11.10 on your freshly installed Ubuntu 11.04 (Natty Narwhal), using Ubuntu Software Center or command line/shell/terminal.
Installing Opera on Ubuntu 11.04
#1 : Download the debian package ‘opera_11.10.2092_i386.deb’.
Download Opera 11.10 for Ubuntu 11.04
#2 : Now, open the downloaded package with Ubuntu Software Center (Right click on the file and select Open with Ubuntu Software Center), then click on install button to start the installation procedure. …..Wait for the installation to complete.
#3 : That’s All..Now go to menu (Top left corner) and search for ‘opera’ to start surfing with Opera.
Alternate way : From Terminal
Open Terminal (CTRL+ALT+T) and enter the commands, probably followed by your login password.
sudo dpkg -i opera_11.10.2092_i386.deb
A Firewall is a program (software) or a device which allows us to set different types of rules for a network i.e how the packets will be treated at different ports ..and it’s very widely used in protecting a computer from unauthorized/unwanted access through a network. Due to an exponential growth in computer related crimes, Firewall is a mandatory application for every computer users.
Ubuntu 11.04 – Natty Narwhal or any other Linux distros is very secure by default as they have built in firewalls running by default. So normal Ubuntu users do not need any firewall (Unlike the windows users do because Windows is insecure by default! , Comodo is an excellent firewall for Windows users) in order to protect themselves from crackers or hackers or cyber criminals.
Advanced or ‘geeky’ Ubuntu users may need (or they just want to do that for learning purposes) to set inbound and outbound traffic rules/policies manually for any ports (I mean virtual or software ports), In that case you just need to use UFW (Uncomplicated Firewall; a frontend of IPtables, which works as an interface to netfilter (Package Filtering System provided by Linux Kernel)) , which is installed by default on all Ubuntu versions, but by default it has only Command Line Interface. So in this post you will learn how to install a front end for UFW, Firewal Configuration (gufw), to manage and configure UFW easily in GUI mode. gufw is a simple (probably the best and fast) firewall configuration software that works! and got 5 star in Ubuntu Software Center ratings. You may need to enable (by check the square box) the universe repository in Synaptic Package Manager -> Settings ->Repositories -> Ubuntu Software .
how to install Firewall Configuration Application – gufw on Ubuntu 11.04
#1 : Open Ubuntu Software Center and search for ‘gufw’.
#2 : Then, click on install button in the search result, and enter your login password if required.
#3 : Now, wait for the installation to complete ..relax it will hardly take a minute..
#4 : That’s All..
Alternative Way – Install gufw from Command Line / Terminal
If you enjoy terminal on Ubuntu then the best way to install is to use terminal/shell (bash). Open terminal (CTRL+ALT+T) and enter the command(s) –
sudo apt-get install gufw
Mac OS X has been the most popular operating system, if we consider the look (of course! it’s good looking but not if we think in terms of Performance or Security or Features – Ubuntu is far better!); probably due to its robust – layout, design and typography; and cool charming icons (Mac OS X Leopard Icons). That’s why most of the snapshots you see in Application/software releases, uses Mac OS (with the assumption that the particular Apps/Software is supported with Mac).
On Ubuntu 11.04(Natty Narwhal), if you are using Gnome Desktop then customize it in the same way as you did in Ubuntu 10.10 (Using Macbuntu in Ubuntu 10.10 – Lucid Lynx), but it may vary if you are using Unity Desktop probably due to Unity shell/Interface. But don’t worry Gnome 2.3 themes is also supported with Unity. You just need to download the theme package (*.tar.gz) and drop it on the ‘Appearance -> Themes window’. If the package is properly configured, then it will display a message like – ‘New Theme Installed Successfully’. So in this post, you will learn – how to get mac like look on Ubuntu 11.04‘ i.e transforming Natty Narwhal to Mac using a simple theme.
Performance of 'Ubuntu 11.04' + Appearance of 'Mac OS X' => Great Experience
Installing Mac Theme on Ubuntu 11.04
step #1 : Download the Mac Theme package – named as : ‘Not Mac’.
Download Not Mac Theme for Ubuntu 11.04
step #2 : Now install the downloaded theme using- just Drag and Drop method i.e drag the ‘139967-Not Mac.tar.gz’ theme file, and drop it to ‘Appearance -> Theme window’ to install. You will get a message – like ‘Keep the Current Theme’ or ‘Apply New Theme’, so select second option to try now or you can select it any time from the theme tab under appearance settings.
step #3 : That’s all..enjoy the cool and beautiful look of Mac on Ubuntu, with a lot of Fun!
If you want the Ubuntu 11.04 to look more closer to Mac OS X then better use Gnome 2.3 Desktop (select it at login prompt, it’s already installed by default). Here is another look – of Gnome Desktop with Mac Theme –
KDE ( K – Desktop Environment) is one of the most popular open source (KDE is released under LGPL) Desktop preferred by a vast majority of Linux users. Ubuntu releases special – dedicated edition with KDE desktop and named as – KUbuntu. KDE is free for all users, it doesn’t only provides the Desktop environment but also a lot of useful KDE based applications. KDE is based on Qt Framework. The latest version is 4.6.
Canonical has made Unity, the default desktop in Ubuntu 11.04 (Natty Narwhal), and a lot of Ubuntu fans are upset about this, because They wanted to use GNOME 3.0 instead of Unity. Unfortunately the stable PPA isn’t available currently (Although in next version of Ubuntu, i.e 11.10, Gnome 3.0 will be installed by default) although you can install Gnome 3.0 Desktop/shell on Ubuntu 11.04 through PPA (Unstable), which will break the Unity; so it’s not recommended in general. In this article, you will learn how to install KDE 4.6 desktop on Ubuntu 11.04, from command Line or Synaptic Package Manager. A lot of popular Distribution uses KDE – e.g Open Suse, Linux Mint, Backtrack 4 (A dedicated Linux desktop for cyber security professionals or Ethical Hackers).
Installing KDE Desktop on Ubuntu 11.04
#1 : Open Synaptic Package Manager and search for ‘kde desktop’, then select the package(by checking the small square box) you want to install – KDE base or minimal or full depending on your need.If you also want to try some KDE Apps, then try full or just select standard package.
#2 : Then click on Apply button to begin installation procedure and …Wait for the installation to complete.
#3 : That’s all..
Alternative Way to install kde
Open Terminal and type the following commands (followed by your login password)
sudo apt-get update
sudo apt-get install kde-standard
Login to KDE Desktop
Now, if you want to use KDE desktop, then logout from the current session and select KDE desktop in the login prompt (A menu appears in bottom center for the desktop selection), and login to enjoy.
NetBeans is one of the most popular Integrated Development Environment ( IDE , which provides a set of tools and features to speed up the development process, so helpful in boosting productivity of programmers). Netbeans is a free and open source Application, available for all common platforms – Linux Distors like Ubuntu 11.04 (Natty Narwhal), Fedora, Linux Mint; Windows and Mac OS X. Netbeans 7.0 (Latest Stable Version) released a week ago. Netbeans is very popular among Java EE developers, because of its features and simplicity. This post will explain how to install netbeans on a freshly installed ubuntu 11.04, from USC (Ubuntu Software Center) or shell, you can also use Synaptic Package Manager.
You can also Try Eclipse IDE on Ubuntu 11.04, if you want, as Eclipse is another very popular open source IDE, but Netbeans is recommended, for beginner programmers because it’s very simple, lightweight and easy to start. A lot of free plugins are available to extend the features (support for Ruby and Rails, C/C++, PHP etc) of Netbeans IDE. I , personally don’t recommend IDE to beginner programmers, because of the fact that – ‘IDE will hide a lot of things, by creating a layer of abstraction, that we should now’; when you are experienced enough to understand the underlying details, then go for an IDE like NetBeans or Eclipse. Nebeans got 4.5 out of 5.0 in software center rating.
Features of NetBeans at a Glance
- good for java (EE features supported) programming
- Glashfish Server 3.1 is supported
- faster deployment with Weblogic
- it’s very simple to use
- all other basic features (e.g syntax coloring, Auto-completion) that you expect from an IDE
Installing NetBeans on Ubuntu 11.04
#1 : Open Ubuntu Software Center and search for ‘netbeans’.
#2 : Click on install button to start the installation procedure and wait for the installation to complete.
#3 : That’s all..Enjoy coding with Netbeans.
Alternative Way – installing NetBeans from Command Line
Open terminal and type the command, followed by your login password –
sudo apt-get update
sudo apt-get install netbeans