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Ipkungfu or linuxkungfu is an iptables firewall script. With ipkungfu, you can easily configure as to which port of the server will be opened for connection, restrict who can access the server plus other security features. You can refer to the website of ipkungfu at http://www.linuxkungfu.org/ for the list of complete features.

Ipkungfu is available a the Ubuntu repositories. To install ubuntu,

# aptitude install ipkungfu

Ipkungfu should now be working.

After installing ipkungfu, type (continue reading…)

When Ubuntu’s Gutsy Gibbon (7.10) is released on Thrusday there will be a mad rush to download updates and ISOs from Ubuntu’s servers. This article will explain various ways to upgrade to the latest and greatest by avoiding to download rush.

Upgrading to Ubuntu 7.10 now, before the rush
To upgrade to Ubuntu 7.10 now, before the rush, by following these instructions:

1. Open a terminal window (Applications -> Accessories -> Terminal)
2. Run the following command:

update-manager -d (after Oct 18th, remove the -d option)

This will upgrade to the release candidate, which is considered complete and stable. On Oct 18th, apply the updates and you will be running 7.10 final release. (continue reading…)

To play most DVDs you’ll need the libdvdread3 package installed. Install it, and then run the following:

sudo /usr/share/doc/libdvdread3/install-css.sh

In other distros the install-css.sh perhaps is inside the examples directory like this:

sudo /usr/share/doc/libdvdread3/examples/install-css.sh

Open a terminal window and type in:

sudo apt-get install rar
sudo ln -fs /usr/bin/rar /usr/bin/unrar

After that you can find Archive Manager in the Gnome menu under Applications -> Accessories.

open a terminal and enter:

apt-get install nmap