GeekLK ::

Followed by azker‘s article on OSI model Part-1 and Part-2. In this article I will explain what this ARP and why it’s important to know about it. In OSI Layers you see there are two types of addresses in OSI model. Network layer contains IP address and Datalink layer contains MAC address. When I was [...]

The purpose of this article is to explain about Dynamic DNS and it’s usage. I’ll walk through by setting up Dynamic DNS system for your server. What is Dynamic DNS and how it works In short it’s the replacement for the requirement of static IP. First you need to understand how DNS works, check out this article. [...]

Zimbra, an open source mail server is not just to send and receive emails but it’s a fully featured collaboration suite which includes calendar, tasks, file-sharing, IM, mobile support and many more… Now, I wanted to deploy an email server on my work place and went through some research based on cost-effective, features, stability and easy [...]

Nowadays everyone has wireless smartphones tablets etc. Sharing the internet from a wireless enabled PC or lap in windows is not easy for non techy people. In this tutorial I will demonstrate on how to setup and easily share your existing internet connection to all other wireless devices instantly. Connectify me hotspot application. Connectify me is [...]

Mobile, Cloud, Social and Data Analytic Technologies are Expected to be the big movers in 2012, says a December 2011 article from iTWire. Virtualization and security were already buzzwords in 2011, but new in 2012 is the emphasis on enterprise social collaboration and business analytics Technology.

Port Scanning is one of the most popular techniques used by hackers to discover services that can be compromised. A Potential target Computer runs many ‘Services’ that listen at ‘well-known’ ‘Ports’. By scanning which ports are available on the victim, the hacker finds potential vulnerabilities that can be exploited.

What is VPN Tunneling? A VPN Tunnel is exactly what it sounds like it should be it is a virtual “tunnel”, or secure encrypted connection, between two or more endpoints. It allows a user with two geographically separated destinations to establish a logical connection.

I love Web Applications. The ease of use Web application with just a Web Browser makes life lot easier. And future trend also moving towards Web Apps Eg-  Chrome webstore, Google Apps, ZOHO. This tutorial is about setting up a Web based File Manager which suits best for your home server or a file server [...]

While surfing around found a nice tool to play fun with a tool called Middler using ARP Spoof (MITM). Middler is a tool which can inject a Javascript code (js) into target’s HTTP session. In this tutorial I’m going to explain how to perform this attack. If you don’t know how ARP Spoof works check [...]

Tor is a free software which will let you surf the Internet anonymously while protecting your privacies. In this guide I’ll be explain on how to install and configure Tor in Ubuntu to use easily with GUI. Tor is also available for other OS platforms (cross platforms). Step 1 Go to Ubuntu Software Center and Search for “tor”. From [...]