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Recent Tutorials

RFC 3261 Simplified: Session Initiation Protocol Part-Five

By the end of RFC 3261 Simplified series part IV, we were done with method independent processes on both UAC & UAS sides. In this tutorial, part V, we will be going into details about the CANCEL method with examples to understand the concepts better.

RFC 3261 Simplified: Session Initiation Protocol Part-Four

In RFC 3261 Simplified series part IV, we focus on the UAS side and go over the initial method independent steps a UAS follows to process a request; Authentication, Method Inspection, Header Inspection, Content Processing, and Applying Extensions.

RFC 3261 Simplified: Session Initiation Protocol Part-One

In this RFC 3261 Simplified series, we are going to use examples and analogies to explain RFC 3261, Session Initiation Protocol, in a language that will appeal to a wide spectrum of audience. This is part I in which we go over an introduction to SIP, followed by a sample call capture and analysis of the messages in that sample call.

Installing AsteriskNOW on Oracle VirtualBox

In this tutorial, we will first visit and find out what AsteriskNOW is and how it is different than traditional Asterisk installations. We will download an AsteriskNOW ISO image to use as a virtual CD. With this ISO image and Oracle VirtualBox, we will create an AsteriskNOW PBX instance. We will go over the the installation and how to login to the GUI via a web browser.

Installing Kali Linux on Oracle VirtualBox

In this tutorial, we start with downloading the Oracle VirtualBox application and Kali linux virtual machine files. After the files are downloaded, we install Oracle VirtualBox first and add the Kali linux instance. Next, we update/upgrade the Kali instances, take a snapshot and properly shutdown the virtual machine.

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Recent Quick-Tips

Installing Python in Kali Linux

In this quick-tip, we note that Kali Linux comes with Python installed by default, compare 2.x and 3.x Python releases, and demonstrate how to install Python in Kali Linux, which would be used for upgrading as well.

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