Asterisk Documentation Project

We’re currently working on a complete website re-design that has been slow in the making, but some related technologies that were required to keep the information up to date have been progressing nicely. We hope to have a new website up and running sometime in 2009. For now, you can obtain the most recent version of [...]

Apple dropping DRM from music in iTunes, keeping DRM for audiobooks

Looks like Apple’s going to drop the DRM on the music in the iTunes store — but there’s no indication that the DRM that’s too evil to be borne for music will be likewise dropped from audiobooks and video. Right now, Apple will only sell audiobooks from Audible — and Audible will only sell audiobooks with [...]

VMware Fights Fire with Fire

VMware has imported another ex-Microsoft veteran to fight Microsoft, its worst enemy. This time it’s Tod Nielsen plucked out of Borland, where he’s been CEO for the last three years, to be VMware’s chief operating officer, a specially created job that reports to fellow Microsoft veteran, VMware CEO Paul Maritz.

Back in Microsoft’s golden age, Nielsen filled [...]

Implementing NAT And NAT-T

RFC 1631

1. Static NAT

- allows public host to communicate with a private host by creating a static one-to-one IP translation entry

2. Dynamic NAT

- pool of available addresses are assigned to private hosts for internet access on an ad-hoc basis by creating a dynamic one-to-one IP translation entry

3. NAPT (PAT)

- NAT overloading whereby a single IP is [...]

Denial Of Service Attack – DOS/DDOS

Exhausts a resource limitation on the network (eg TCP, ICMP) or within an OS or app (eg HTTP, FTP ie keeping open all available connections supported by that server) to make the service unavailable for normal use

- Among the most difficult to completely eliminate because of the way they use protocol weaknesses and ‘native’ traffic to [...]

Port Security Configuration Examples

One common port security scenario is to configure a static MAC address on a switchport. If the switch sees a mac address other than the configured address, a violation occurs. By default, the violation action is shutdown.You might use a configuration like this in a college computer lab. Let’s say that you have a printer on [...]

Single Internet Connection but HA Infrastructure – Using Bridging Instead of Routing

Introduction – The Design Constraint

The customer had decided to build a hosting platform, but could only arrange for a single internet connection to that site due to location. However, all other hardware was duplicated for high availability. After considering the options the following diagram was prepared showing the first pass at the design. This was the [...]

Burn CD and DVD images

Application Name : ISO Recorder

About :

Welcome to the ISO Recorder download page. ISO Recorder is a tool (power toy) for Windows XP, 2003 and now Windows Vista, that allows (depending on the Windows version) to burn CD and DVD images (DVD support is only available on Windows Vista), copy disks, make images of the [...]

TrueCrypt – Free Open-Source Disk Encryption Software

TrueCrypt – Free Open-Source Disk Encryption Software

Homepage : http://www.truecrypt.org

Free open-source disk encryption software for Windows Vista/XP, Mac OS X, and Linux
Main Features:

* Creates a virtual encrypted disk within a file and mounts it as a real disk.

* Encrypts an entire partition or storage device such as USB flash drive or hard drive.

* Encrypts a partition or [...]

How-to install WMware 6.0.3 in Linux

how-to install WMware 6.0.3 in Linux:

First, do this:

sudo apt-get install build-essential linux-headers-`uname -r`

sudo apt-get install xinetd

Now, run the vmware install, it will more then likely fail on vmon module. Do this first:

sudo ln -sf /lib/libgcc_s.so.1 /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1
sudo ln -sf  /usr/lib/libpng12.so.0 /usr/lib/vmware/lib/libpng12.so.0/libpng12.so.0

Download the latest any-any patch – currently vmware-any-any-update-116

From Here

hen: tar xzvf vmware-any-any-update-116.tgz

Continue with: cd vmware-any-any-update116

And: ./runme.pl [...]