Fix broken repository in Ubuntu

The below command is used to fix the broken repository in Ubuntu
$ sudo apt-get install -f

Commands for installing VLC Player in Ubuntu 9.04, 9.10 and 10.04

Command line way

You need to check that a "multiverse" mirror is listed in your /etc/apt/sources.list.

% sudo apt-get update
% sudo apt-get install vlc vlc-plugin-pulse mozilla-plugin-vlc

 

FireStarter for Ubuntu Linux - a free professional firewall

Fire starter is a small utility that is used for restricting the network in a pretty way. It can be installed easily with the following command

$ sudo apt-get install firestarter


It is having the customizable user interface, you can minimize into tray if you need, you can leave it normal otherwise.

Key Features

• Suitable for use on desktops, servers and gateways
• Enables Internet connection sharing
• Allows you to define both inbound and outbound access policy
• Wizard for easily configuring your firewall
• Sets up DHCP for a local network
• Real time firewall events view
• View active network connections, including any traffic routed through the firewall
  

Normally, In professional flavour of Linux ie Redhat Enterprise Linux does not have this type of utility. You can achieve through commands that is used for fixing the firewall priority ie., High, Medium, No firewall.

But In Ubuntu you can fix it easily with simple mouse clicks. You can restrict the network through this utility. Blocking internal network packets as well as blocking external network packets.

You cannot access internet, if you block all packets. This is the good utility to maintain a good network in Ubuntu.

Firewall is the fitering mechanism in one or more network, that is used to handle the incoming and outgoing packets in general.

A new presentation on Ubuntu

This is new presentation on Ubuntu with various screenshots.

http://pnaprasanna.blog.co.in/files/2009/09/present.pdf