This is a collection of various free links, resources, guides, online tutorials on network, networking, internet, and internetworking or network engineering. I have a Master of Science (M.S) in Internetworking and hold an engineering degree too, and I do keep updating these resources whenever I am bored.

An internetwork is a collection of individual networks, connected by intermediate networking devices, that functions as a single large network. Internetworking refers to the industry, products, and procedures that meet the challenge of creating and administering internetworks.

So, that defines internetworking pretty well, doesn't it? And if you like to learn more about how the Internet works or the internetworking technology, then have a look at the following useful resources.

If you are planning to get certified or skilled training in IT, there are many free and good resources listed in the Certification Resources and others area of this website. The Network Resources area gives links and tips for general networking technology.

• Cisco Internetworking Technology Overview
• Cisco Router Configuration Tutorial
• Cisco IOS Basic Commands
• Cisco Support Documentation
• Cisco Support Technical Assistance Center (TAC)
• FATKID
• RouterGod
• Blackhat
• Boson Router Simulator
• Cisco Internetwork Troubleshooting Guide
• Cisco Troubleshooting Switch Port and Interface Problems
• Cisco Configuring and Troubleshooting Ethernet 10/100/1000Mb Half/Full Duplex Auto-Negotiation
• Cisco Troubleshooting BGP [IP Routing]
• Layer by Layer Troubleshooting with a Cisco Router 
• Firewall.cx
• Learn To Subnet
• IP Calculator / IP Subnetting
• GroupStudy : Virtual Community of Network Engineers
• What is the Difference Between a Hub and a Switch
• Cisco IOS Security
• Nagios Host Service and Network Monitoring Program 
• MRTG The Multi Router Traffic Grapher
• Sprintlink NAP Looking Glass
• Onvoy Juniper Looking Glass
• VisualRoute: Trace an IP Address's route visually (not free anymore)
• Traceroute
• Root Server Technical Operations Assn
• Exploring Autonomous System Numbers ASN
• The 16-Bit AS Number Report 
• Internet eXchange Points - Colosource
• Sea-Me-We3 Submarine Cable Network SMW3
• Sea-Me-We4 Submarine Cable Network SMW4
• STAR TAP NETWORKS
• NORDUNET
• SwiNOG: Swiss Network Operators Group Project Netlantis
• Spider Magazine - Pakistani active ISPs
• Internet Traffic Report
• Internet Storm Center
• Bell Labs Internet Traffic Research
• CAIDA - Internet Measurement Infrastructure
• Learn How Internet Works: The Animated Internet
• What is Internet & How It Works
• Intute Virtual Training Suite - Free Online Tutorials on Internet Technologies & Skills
• University At Albany - Internet Tutorials
• Internet Tutorial List
• TORSEC - public site - publications
• SANS/FBI: Top 20 Vulnerabilities of both Windows and Unix systems
• Newzealand Government Communications Security Beureau
• Interpol
• IPv6 Information

If you have explored all the above links, you might now have a somewhat clear idea on what the Internet is capable of and how powerful it is getting with time. I will try to update these resources frequently with latest trends and removing the dead links.

If you have some good resources to share, there is a free Online Discussion Forum where you can post anything anytime.

If you would like to place a sponsored link or wish to place an advertisement banner in this section, feel free to contact me.