Mini-Howtos

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Prevent Phishing with Mutual Authentication

Prevent Phishing with Mutual Authentication

Phishing is a man-in-the-middle attack. While many people think using time-bound, one-time passwords will solve the problem, they are wrong as attacks will just become automated. What is required is strong mutual authentication - authentication of the host to the user as well as the user to the host. This article demonstrates how to do that using open-source software from WiKID.

How to Set up Network Bonding in Ubuntu 6.10

How to Set up Network Bonding in Ubuntu 6.10

Network Bonding, otherwise known as port trunking allows you to combine multiple network ports into a single group, effectively aggregating the bandwidth of multiple interfaces into a single connection. For example, you can aggregate two gigabyte ports into a two-gigabyte trunk port. Bonding is used primarily to provide network load balancing and fault tolerance.

Custom Boot Menu for Windows XP

Custom Boot Menu for Windows XP 

One of the first things that I do upon receiving a new windows computer is create my own custom boot menu that shows up every time I boot my machine. This is especially handy when you suspect a virus; you can reboot into safe mode and scan for it.

Using A Sandisk MP3 Player On A Linux Desktop

Using A Sandisk MP3 Player On A Linux Desktop

This article shows how to use a Sandisk MP3 player (Sansa E250) on a Linux desktop. Now I can have all the tunes I want without dropping into Windows to manipulate them.

Decision Making Using PHP Switch Statement

Decision Making Using PHP Switch Statement

Today I am going to discuss Switch Statement. The basic concept of Switch is similar to the IF-ELSE statement; it helps you to write decision making code just like IF-ELSE but it is a little more organized, elegant and handy when dealing with complex logics as compare to IF-ELSE.

Set Up Postfix For Relaying Emails Through Another Mailserver

Set Up Postfix For Relaying Emails Through Another Mailserver

This short guide shows how you can set up Postfix to relay emails through another mailserver. This can be useful if you run a Postfix mailserver in your local network and have a dynamic IP address because most dynamic IP addresses are blacklisted today. By relaying your emails through another mailserver that is hosted on a static IP address in a data center (e.g. your ISP's mailserver) you can prevent your emails from being categorized as spam.

.htaccess Based Authentication On Subdirectories

.htaccess Based Authentication On Subdirectories

.htaccess is used to provide facility of changing configuration per directory basis, this file can contain one or more directives that are going to be forced on the directory that contains the.htaccess file. In this howto, I will take a dummy scenario of two parallel level subdirectories and will implement password authentication on both of them. This means only those users can access these directories that have the correct username and password.

Secure your SSH deployment with WiKID two-factor authentication

Secure your SSH deployment with WiKID two-factor authentication

In this document we are going to demonstrate how to combine two-factor authentication from WiKID with an SSH gateway server with hosted private keys to create a highly secure, auditable and easy to use remote access solution. The WiKID Strong Authentication System is a commercial/open source two-factor authentication solution.

How to configure OpenVPN to use WiKID Strong Authentication

How to configure OpenVPN to use WiKID Strong Authentication 

The WiKID Strong Authentication System  is a commercial/open source two-factor authentication solution.  This guide demonstrates how to OpenVPN and SSH to use one-time passwords from WiKID.  While both solutions support private key authentication, that may not be sufficient for your requirements; you may need one-time passwords for webmail or extranet access; or centralized authentication management and logging.

Create A Desktop Background Wallpaper Changer For Xfce

Create A Desktop Background Wallpaper Changer For Xfce

I have switched to Xubuntu a few months ago coming from Kubuntu. In Kubuntu I liked the (already available) option of setting up a list of image files and have them randomly displayed as background image on the desktop. This was one of the things I have missed so far in Xfce. This small howto shows you how you can randomly display background wallpapers in XFCE.

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