Archive for January, 2011

Having issues with the host, nslookup and dig commands?

Any idea what are the use of nsloolup, host and dig tools? nslookup is a network administration command-line tool available for many computer operating systems for querying the Domain Name System (DNS) to obtain domain name or IP address mapping or for any other specific DNS record. host is a simple utility for performing DNS [...]

How to install LAMP for Ubuntu

Today I’m going to give a little tutorial on how to install LAMP on Ubuntu. I know install LAMP on a Linux box is really elementary, but I have to be honest, the first time I get to play with a Linux box, I have no idea how to use the command. I don’t know [...]

More on SEO-Links

To gauge the amount of popularity a site has, which is a major factor in determining a site’s rank, analysis of links that a site has is very valuable.  The more inbound links a site has, the more votes it gets for its popularity.  However, not all links are good links.  Links from authoritative sites [...]

3 handy computer tricks – Move mouse pointer without a mouse, download Youtube videos, and share your PC screen

Here’s three general computer tips that I stumbled upon that you might find handy or at the very least interesting. Move the mouse pointer in Windows without a mouse You may find yourself in a situation where you need to use a mouse, but you don’t have one.  Luckily, Windows allows you to move your mouse [...]

“Zombie”

A Zombie process Have you ever got stuck wondering what a Zombie is in your process list? You will rarely find such a phenomenon in your server. There is no need to worry, as its not going to shed your resources. A zombie process is just an inactive process that has finished its execution but [...]

SEO-Continued

The crawlers or spiders that crawl over website pages can only see text or html.  Some tools to use to see what these bots will find on your site to be indexed in google’s, yahoo’s, or bing’s search engine databases, are:  SEO-browser.com, the mozBar or Yellowpipe. Web pages for various keywords are stored in millions of [...]

How to Install phpbb

Today i’m going to show you how easy it’s to install phpbb. Phpbb is a free open source forum software, it’s ideally for those who are just trying out forum management or want to create their own private forum without wanting to pay a fee. First download phpbb from this link. Tutorial: After downloading phpbb, [...]

Networking Simulation using OPNET Modeler

Today I want to write a quick tutorial on network simulation using OPNET Modeler. First what is network simulation? Network simulation is a technique where a program models the behavior of a network either by calculating the interaction between the different network entities (hosts/routers, data links, packets, etc) using mathematical formulas, or actually capturing and [...]

VoIP, Digital VS Analog

There are many advantages to using a VoIP phone system but the main one is the cost savings.  As digital or VoIP uses the internet to transmit signals and an analog system uses a dedicated line, you can see that it’s obviously cheaper to drive on a shared major highway rather than rent a road just for your car.  [...]

Create a DAG using the Exchange Management Shell

This is the 3rd article in my series about DAG’s (database availability groups).  Check out my other article on DAG’s – Performing a manual copy of a mailbox database in a DAG and Realize high availability of your Exchange 2010 mailbox database with a DAG.  In this article, I will go more in-depth on requirements for [...]