Showing headlines posted by falko

To access Wireless LAN you usually need to find a so-called hotspot where you can use the local Wireless LAN to access the Internet. Android smartphones however have a feature which enables them to become a wireless hotspot themselves - they use UMTS to connect to the Internet and make the Internet connection available to other computers/devices via WLAN. This article describes how you can configure this feature.

This guide explains how you can install and use KVM for creating and running virtual machines on a CentOS 6.0 server. I will show how to create image-based virtual machines and also virtual machines that use a logical volume (LVM). KVM is short for Kernel-based Virtual Machine and makes use of hardware virtualization, i.e., you need a CPU that supports hardware virtualization, e.g. Intel VT or AMD-V.

This tutorial is supposed to show how to change the desktop's appearance to people who are new to Linux. For this tutorial I am using Linux Mint 11 with the Gnome desktop. This is the default desktop you have installed on your system. If you have not configured it otherwise already, everything should work for you.

Icinga is an enterprise grade open source monitoring system which keeps watch over networks and any conceivable network resource, notifies the user of errors and recoveries and generates performance data for reporting. It is a fork of Nagios. This tutorial explains how to install Icinga on a Debian Squeeze server to monitor this server and another Debian Squeeze server.

scponly is an alternate shell that restricts users to SCP and SFTP logins, but disallows SSH logins. It is a wrapper to the OpenSSH suite of applications. With the help of scponly, you can allow your users to use clients such as WinSCP or FileZilla to upload/download files, but you refuse SSH logins (e.g. with PuTTY) so that your users cannot execute files/programs. This tutorial shows how to install and use scponly on Debian Squeeze.

This tutorial shows how to set up network RAID1 with the help of DRBD on two Debian Squeeze systems. DRBD stands for Distributed Replicated Block Device and allows you to mirror block devices over a network. This is useful for high-availability setups (like a HA NFS server) because if one node fails, all data is still available from the other node.

This tutorial is supposed to show useful terminal commands to people who are new to Linux. Terminal commands are powerful tools if they are used correctly, but can cause great damage if you are not completely aware of what you are doing. Before using commands that are new to you, look up the manual page and make sure you have your files saved and backed up.

This tutorial shows how you can speed up your Drupal 7.7 installation on a LAMP stack (Debian Squeeze) with the help of Boost and nginx. Boost provides static page caching for Drupal enabling a very significant performance and scalability boost for sites that receive mostly anonymous traffic. Boost makes sure that your logged-in users always get fresh content by not caching pages for logged-in users. In a first step I will show how to make your site faster by enabling Boost on a normal LAMP stack (Apache2, PHP, MySQL), and in a second step I explain how to make your site even faster by using nginx as a reverse proxy sitting in front of Apache and delivering the static HTML pages cached by Boost. nginx delivers static files a lot of faster than Apache and uses less memory/CPU.

This tutorial will explain how to install aditional modules for the kernel to use with iptables rules sets (netfilter modules). Xtables-addons is the successor to patch-o-matic(-ng). Likewise, it contains extensions that were not, or are not yet, accepted in the main kernel/iptables packages. Xtables-addons is different from patch-o-matic in that you do not have to patch or recompile the kernel.

This tutorial is supposed to guide the reader through some new features of the Unity desktop, Ubuntu's new desktop environment used since Ubuntu 11.04. The prime subject will be the launcher, which is something like a side-dock, and how to configure it the way it fits your likings most.

Unfortunately it is not possible to directly take screenshots of an Android phone (e.g. by tapping on a button). This tutorial shows you how you can take screenshots of an Android smartphone with the help of a computer where the Android SDK is installed.

The aim of this tutorial is to enable you to set up a little VPN that will let you do many things – but my primary goal when trying to get this to work was to allow me and my friend (who sits behind a firewalled network at University) to play the new games that would not work over Hamachi because they did not ship with LAN and required an always-on internet connection (DRM). His network also uses traffic shaping and blocks UDP packets, making online gaming impossible.

Nginx (pronounced "engine x") is a free, open-source, high-performance HTTP server. Nginx is known for its stability, rich feature set, simple configuration, and low resource consumption. This tutorial shows how you can install Nginx on a CentOS 6.0 server with PHP5 support (through PHP-FPM) and MySQL support.

This tutorial explains the installation of a Samba fileserver on Ubuntu 11.04 and how to configure it to share files over the SMB protocol as well as how to add users. Samba is configured as a standalone server, not as a domain controller. In the resulting setup, every user has his own home directory accessible via the SMB protocol and all users have a shared directory with read-/write access.

Cherokee is a very fast, flexible and easy to configure Web Server. It supports the widespread technologies nowadays: FastCGI, SCGI, PHP, CGI, TLS and SSL encrypted connections, virtual hosts, authentication, on the fly encoding, load balancing, Apache compatible log files, and much more. This tutorial shows how you can install Cherokee on an Ubuntu 11.04 server with PHP5 support (through FastCGI) and MySQL support.

This is a tutorial for people originally using the Windows Operating System who want to try out Linux Mint 11. It is supposed to show the differences and similarities between the two systems and depict Linux' functions with examples.

This tutorial shows how to prepare a Debian Squeeze server for the installation of ISPConfig 3, and how to install ISPConfig 3. ISPConfig 3 is a webhosting control panel that allows you to configure the following services through a web browser: Apache web server, Postfix mail server, MySQL, BIND nameserver, PureFTPd, SpamAssassin, ClamAV, and many more.

DesktopNova is an application that automatically changes your desktop wallpaper after a preset period of time. It works with Gnome amd Xfce desktops. This tutorial shows how to use DesktopNova on an Ubuntu 11.04 desktop with the Classic Gnome interface.

This tutorial shows how to set up file synchronization between two Debian Squeeze 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.

This tutorial is supposed to show new Linux users how to handle Linux without having to browse through your desktop to edit files. The core commands to do this are the same on every Linux distribution, however there is a large variety of commands that differ from distribution to distribution, as does the install command.