Friday, September 28, 2007

innotek VirtualBox


innotek VirtualBox is a software which enables the virtualization. I have some experience using this. It is very simple to install and configure on linux. I have done this on ubuntu 7.04. I install WindowsXP on the virtual machine I created on virtual box.
Configuration of the virtual machine is,
  • 256 Memory

  • 5 GB Hard disk

  • It runs smoothly on these configurations.
    This is a screenshot of my machine.It has both ubuntu and windows menu bars.


    Download innotek VirtualBox and enjoy with virtualization.

    Thursday, September 27, 2007

    Virtualization

    In computing virtualization means lot.Simply it is the method of showing single physical resource(processor,storage devices) as multiple resources or vice versa.Nowadays virtual machines are getting very famous, because lot of computing problems can be solve using virtual machines.One well known virtual machine is Xen which is open source one.
    The platforms that allows multiple operating systems to run on one machine is called Virtual Machine Monitor(VMM) or Hypervisor.

    There are two types of hypervisors.
  • Type 1 hypervisor - Software that runs directly on hardware.So the guest OS run as 2nd level above hardware. E:g - Xen,Vmware's ESX server


  • Type 2 hypervisor - Software that runs within host's OS.So the guest OS runs as 3rd level of hardware. E:g - swsoft,VMware server


  • There are number of advantages of virtualization. It is very good method to resource sharing.There are lot of applications built with the help of virtualization.One such example is intruder detection systems(IDS).

    Tuesday, September 18, 2007

    Attificial Immune Systems

    Human immune system is the system which is responsible for protect the body from harmful foreign attacks. These attacks come as viruses, bacteria, fungi and other parasites.
    The system is,
    • Distributed
    • No central place to monitor
    • Adaptive
    • Very complex

    The system identifies harmful foreign attacks by using its detectors as well as it is capable of storing details of those intruders for future use.

    The main functionalities of human immune system are,

    • Randomly generate detectors.
    • Maturate those detectors.
    • Distribute the identified detectors across the body.
    • Identify anomalies.
    • Discriminate them with body cells.
    • Take relevant actions on anomaly cells.
    • Maintain memory about selected anomalies.


    Artificial Immune Systems is the system which is aim to solve some computational problems using the techniques use by human immune systems to detect anomalies.
    These techniques are use to solve following computational problems.
    • Computer virus attacks
    • Network intruder detection systems
    • Mining data patterns
    • Data clustering