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Configuring CAS On Ubuntu For Two-Factor Authentication With WiKID
Single sign-on is a great technology. Requiring users to login to multiple applications is huge hassle, encourages password reuse and simple passwords. Security needs to focus on usability. If you can make a user's life better while increasing security, everybody wins. In this how-to we will set up the open-source CAS SSO product with the WiKID Strong Authentication Server for two-factor authentication for sessions and mutual https authentication for host authentication. Obviously using two-factor authentication for the login increases security because the user must have the factors to get access, in this case, knowledge of the PIN and possession of the private key embedded in the token. The CAS server is running on Ubuntu 11.04 Server and is using Radius to talk to the WiKID Strong Authentication Server Enterprise Edition.
Setting Up Unison File Synchronization Between Two Servers On Ubuntu 11.10
This tutorial shows how to set up file synchronization between two Ubuntu 11.10 servers with Unison. Unison is a file-synchronization tool similar to rsync, but the big difference is that it tracks/synchronizes changes in both directions, i.e., files changed on server1 will be replicated to server2 and vice versa.
Finding Out Package Dependencies With apt-rdepends On Debian/Ubuntu
Sometimes you need to find out all the dependencies of a package. This tutorial explains how to use apt-rdepends to recursively list all dependencies of a Debian/Ubuntu package.
Enabling Compiz On Linux Mint 12 (GNOME Classic)
This tutorial shows how you can enable Compiz on a Linux Mint 12 Lisa desktop (the system must have a 3D-capable graphics card - I'm using an NVIDIA GeForce 8200 here). With Compiz you can use beautiful 3D effects like wobbly windows or a desktop cube on your desktop. Compiz is not supported on GNOME 3 yet, that's why this how-to is applicable only for the classic GNOME desktop.
Running Joomla 1.7 On Nginx (LEMP) On Debian Squeeze/Ubuntu 11.10
This tutorial shows how you can install and run a Joomla 1.7 web site on a Debian Squeeze or Ubuntu 11.10 system that has nginx installed instead of Apache (LEMP = Linux + nginx (pronounced "engine x") + MySQL + PHP). nginx is a HTTP server that uses much less resources than Apache and delivers pages a lot of faster, especially static files.
The Perfect Desktop - Pinguy OS 11.10 (Beta)
This tutorial shows how you can set up a Pinguy OS desktop that is a full-fledged replacement for a Windows desktop, i.e. that has all the software that people need to do the things they do on their Windows desktops. The advantages are clear: you get a secure system without DRM restrictions that works even on old hardware, and the best thing is: all software comes free of charge. The Pinguy OS developer has stated that there propably will not be any further release of Pinguy 11.10 due to some instabilities of the components used. This Perfect Desktop tutorial therefore refers to the currently released beta version of Pinguy OS 11.10.
Install GNOME 3 (With Mint GNOME Shell Extensions) Or Mate On Ubuntu 11.10 (Oneiric Ocelot)
This tutorial shows you how you can install the GNOME 3 desktop on Ubuntu 11.10 with the shell extensions that are used in the Linux Mint 12 release (Lisa) (these shell extensions are called Mint GNOME Shell Extensions - mgse). These shell extensions give GNOME 3 the look and feel of GNOME 2. For those who prefer GNOME 2 this tutorial shows how to install Mate from the Linux Mint repositories on Ubuntu 11.10. Mate is a GNOME 2 fork.
Mounting Remote Directories With SSHFS On Ubuntu 11.10
This tutorial explains how you can mount a directory from a remote server on the local server securely using SSHFS. SSHFS (Secure SHell FileSystem) is a filesystem that serves files/directories securely over SSH, and local users can use them just as if the were local files/directories. On the local computer, the remote share is mounted via FUSE (Filesystem in Userspace). I will use Ubuntu 11.10 for both the local and the remote server.
Creating Your Own Distributable Ubuntu DVD
This article is about how to create a DVD image of the Ubuntu distribution on your machine with the exact same software included on the disk. This can be done using a software called Remastersys. Remastersys allows you to either create iso-backups of your whole system, including the home folder, or just backups of the installed software, leaving the home folder aside.
Enabling Compiz On Xubuntu 11.10 (Oneiric Ocelot)
This tutorial shows how you can enable Compiz on a Xubuntu 11.10 (Oneiric Ocelot) desktop (the system must have a 3D-capable graphics card - I'm using an NVIDIA GeForce 8200 here). Xubuntu uses the Xfce desktop environment which is a fast and stable alternative for those that are not happy with Unity or Gnome 3. With Compiz you can use beautiful 3D effects like wobbly windows or a desktop cube on your desktop.