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KMail In Depth

Post date: April 13, 2005, 20:04 Category: Software Views: 2579 Comments
Tutorial quote: KMail has long been my Linux email client of choice for a number of reasons: nice clean interface, easily customizable and configurable, stable, and more features than you can shake a stick at. Today we'll dig into migrating from other email clients, encrypting messages and key signing, and configuring multiple accounts and identities.
Unix+clones

The 'no-configuration, only-active-when-needed' SSH VPN

Post date: April 13, 2005, 03:04 Category: Network Views: 2673 Comments
Tutorial quote: So, we started thinking about how we might set up a VPN between the application server and our internal software mirror. The only requirement is that the VPN be initiated from the "inside-out" and that the connection is only active for as long as we need to use. In other words, it would only be active during an administration session. Ideally, it wouldn't be a lot of work to setup and tear down either.

SSH to the rescue...

Fortunately, SSH client and server come with support for this out of the box, requiring no additional software to be installed, and no configuration changes. On the server side, sshd, the setting "AllowTcpForwarding" defaults to "yes" unless your sshd_config file explicitly disables it. On the client side, all you have to do is request the forwarding.
Unix+clones

UNIX Shell Programming QuickStart

Post date: April 13, 2005, 02:04 Category: Programming Views: 3261 Comments
Tutorial quote: If you read, write, or maintain programs, the following samples will give you a quick overview of the construction and style of a shell script and introduce you to some of the constructs and syntax found in these programs.
Unix+clones

Writing Shell Scripts

Post date: April 13, 2005, 02:04 Category: Programming Views: 3744 Comments
Tutorial quote: With the thousands of commands available for the command line user, how can you remember them all? The answer is, you don't. The real power of the computer is its ability to do the work for you. To get it to do that, we use the power of the shell to automate things. We write scripts.
Unix+clones

Graphical Scripting with Kommander

Post date: April 13, 2005, 02:04 Category: Programming Views: 3013 Comments
Tutorial quote: Kommander is a simplified and modified version of Qt Designer which lets you add scripting abilities to the dialogues it makes. It saves the result as a designer UI file which can be run with Kommander Executer. It is the easiest way to make simple programmes, I like to think of it as graphical shell scripting.

Konstuct is a program to download and install KDE from sources. This tutorial takes us through using Kommander to make a graphical program to configure and run Konstruct.
Unix+clones

Using Afick To Aid In Intrusion Detection

Post date: April 13, 2005, 01:04 Category: Security Views: 2742 Comments
Tutorial quote: Afick is a fast and portable utility which acts as an aid in intrusion detection as well as helping to monitor the general integrity of your system. Afick was written by Eric Gerbier and is distributed under the GNU General Public License. It is available for a number of platforms in both binary and source formats.
Unix+clones

Remote backup using ssh, tar and cron

Post date: April 13, 2005, 01:04 Category: Miscellaneous Views: 2846 Comments
Tutorial quote: Are you looking for a solution to backup your data to a remote location? While a solid backup solution such as Arkeia or TSM from IBM are nice from an enterprise point of view, simpler solutions are available from a home user's perspective. I will walk you through on you how you can backup your data to a remote server, using the default tools available on all linux systems. In a nutshell, we will use ssh capabilities to allow a cron job to transfer a tarball from you local machine to a remote machine.

For the purpose of this tutorial, the local machine will be called “localmachine” (running slackware) and the remote server will be called “remoteserver” (slackware as well). The user will be joe (me). You will have to substitute those 3 with your own machines names and user.
Unix+clones

Apache Maintenance Basics

Post date: April 13, 2005, 01:04 Category: Software Views: 2798 Comments
Tutorial quote: You've downloaded and configured your Apache server and are ready to move on to the next project. Can it really be left to fend for itself in a darkened room?

Yes. To some degree, anyway. With the exception of configuration testing, once Apache is up, you likely need never think about how the Web server is running.

On the other hand, completely ignoring your Apache installation would be foolhardy. Doing some regular checks and maintenance on your Apache installation helps identify any issues — usually before they even become issues — and helps you stay up date with the latest security and performance patches. This article covers some of the major steps and maintenance tasks that should be regularly undertaken while the Apache system is running.
Unix+clones

How to create OpenOffice.org macros and automation

Post date: April 13, 2005, 00:04 Category: Software Views: 2286 Comments
Tutorial quote: There are times when you need to perform some task over and over, or when a task is complex enough that doing it manually makes it hard to get it right. OpenOffice.org macros allow you to save a sequence of operations with a single name so you can do the same thing repeatedly. Automation is a first cousin to macros. It lets another application control OOo and make things happen without user intervention.
Unix+clones

File Transfer Protocol

Post date: April 12, 2005, 18:04 Category: Network Views: 2317 Comments
Tutorial quote: Wake up, you goodness-to-GUI slacksters! It's time to get up and get out of that hammock and put your feet on the ground and your hands on the CLI. This week we're going to talk about data in motion. Taking a file from one place on the network. Putting it someplace else. Most often today some form of FTP, the File Transfer Protocol, is used to do those things. It's been part of the Internet since there was an Internet.
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