How many ip addresses are there worldwide?

Posted by Oyya-Info on Friday, November 26, 2010 In : Computer Networking 
This page provides an overview of the number of IP addresses used in every country of the world. The numbers are generated from information published by the Regional Internet Registries (AfriNIC, APNIC, ARIN,LACNIC and RIPE NCC) published on their FTP servers. This information is retrieved at least once a week.
Total number of IPv4 addresses:

2^32: 4294967296 4294.97 million
Class D+E: 536870912 - 536.87 million -
Nets 0 and 127: 33554432 - 33.55 million -
RFC 19...

Continue reading...
 

Cloud Computing Security

Posted by Oyya-Info on Sunday, November 21, 2010 In : Security 
Before diving into the security aspects of cloud computing, let us first understand the basic concept of cloud computing. In cloud computing, cloud stands for internet and computing means using computer technology, hardware, and software, i.e. using or sharing the computer technology, hardware and software over the internet. Different cloud service models are as follows:
  • Cloud Software as a Service (SaaS): In this service model, the consumer uses the provider’s applications on a cloud ...

Continue reading...
 

How to Customize Firefox about:blank page

Posted by vijai on Thursday, June 24, 2010 In : Tweaks 
Every time I open a new tab in Firefox, I'm greeted with about:blank.  As far as creative names go, the name of this page is not very creative because it is just that - blank:



For most of us this isn't a big deal because we don't really spend much time staring at a new, open tab. However others may want to customize it. This article will teach you how to do just that.

To customize your about:blank page, you'll need a user-content.css file.  To make one, press the Windows key and R simultaneousl...

Continue reading...
 

How to Block a Specific Website on your computer

Posted by vijai s on Tuesday, June 22, 2010 In : Security 

There are many reason why you need to know how to block a website. Some of the most common reasons are you have been targeted by spammers who use adware and popups to attack your PC. Other reasons may be to prevent your children from having access to certain site content such as porn and gambling.

Depending on the level of security you wish, learning how to block a website may require a adjustments of your web browser, the use of internet filtering software or editing of your host file. At any...

Continue reading...
 

The Ten Most Important Steps You Can Take to Protect Your PC

Posted by Oyya-Info on Saturday, May 1, 2010 In : Security 

Many agree that Windows computers need to be protected with a strategy called defense in depth. This is not just for fighting off viruses. Clearly, network security and Internet Explorer also need defense in depth. When Internet Explorer was recently hacked in a public contest, Microsoft responded that "...defense in depth techniques aren't designed to prevent every attack forever, but to instead make it significantly harder to exploit a vulnerability."

To me, the term "defense in d...


Continue reading...
 
 
 

 

Make a Free Website with Yola.