Like apt in Debian /Ubuntu , Fedora uses yum to install and update its softwares from Internet. When connected to the internet it will automatically determine application dependencies.

Without an Internet connection, installing applications in Linux is a nightmare because of package dependencies. The aim of this guide is to help install applications in Ubuntu (should work with all apt based distribution with minimal modifications) when there is no internet connection is available.

Get APT anywhere: Have you ever felt that there is no life without APT? Well, if you'd suddenly lost conection to the internet, how would you install new packages? What about dependencies? You've just finished installing Ubuntu and configured it to a rad look, with all your favorite applications? For some reason you now have to re-install it?

Have you ever wished you had access to your Linux distribution's online package repositories when you didn't have access to the Internet, or when your access was slow and unreliable?

Setting up a computer to share its internet connection should be easy. After all, you’ve successfully networked your computers together and even shared files with all your home computers, so why not the Internet?

Something that is difficult to do in Ubuntu (and Linux in general) is installing packages on a system without an active internet connection. This is a brief HOWTO for easily installing packages on an offline Ubuntu system. In order to do this you will need another system (preferably something with Linux) that has an active internet connection as well as a flash drive.

Installing Ubuntu 11.04 or any other distribution on an external hard drive connected to a computer via USB is about the same as installing it on an internal hard disk. The key is to remember, after partitioning the disk, to install GRUB, the boot loader, in the MBR of the external disk, rather than in the MBR of the internal disk.

As we all known, a lot of professional softwares do not provide Debian packages in their official sites. These softwares include TexLive 2008, NetBeans 6.7, Intel Compiler, BRL-CAD, Alice programming language and so on.  Sometimes the installation is complicated.

The internet as we know it today predominantly runs on Linux. There’s an extremely high probability that the internet connection you’re using right now is connected thru a Linux server - and routed thru many other Linux servers along the way.