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 [...]

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.

If you want to reach your friend through the phone call you’ll need his/her phone number. Likewise in IP Network environment to reach a host or a server you need an address called IP Address Eg- 192.168.1.10. And the network services requesting on that host or server is separated by protocols which also have numbers [...]

Layer 2 switches and Layer 3 switches – you may have heard the terms before. So what exactly are they? Both switch types have the capability of linking network devices together from one port to another. Unlike hubs, switches distribute data more intelligently as it interprets them and sends it out to the right destination. [...]

To keep a network infrastructure up-to date monitoring and reporting must be done frequently and It’s a most important task for Network Administrators. Spiceworks provides awesome network management software to monitor and reporting all kind of network equipments in the network.  The cool thing about this software is, it’s nothing but FREE. Once the Spiceworks [...]

If you have been using Internet on a regular basis or working in a large company and surf the Internet while you are at work, you must have surely come across the term firewall.

Google is awesome, Yes it is. A nice trick to get Cisco IOS images from Google. Just paste the following link in  your address bar! http://www.google.com/search?hl=en&q=intitle:index.of+ios+parent%20directory+bin Thanks to AZIZ Source: http://saifulaziz.wordpress.com/2008/08/08/google-hack-for-free-cisco-ios/

Wireless networks are becoming faster, more affordable and easier to adopt than ever. Growing small businesses that have adopted a wireless solution are already reporting immediate paybacks in higher productivity, flexible application mobility and greater worker satisfaction. Roughly 228,000 small businesses currently have remote access capabilities built into their networks for security monitoring and, according [...]