The OSI model explained: How to understand (and remember) the 7 layer network model

By Keith Shaw Network World | DEC 4, 2017 11:09 AM PT A tutorial on the Open Systems Interconnection networking reference model and tips on and how to memorize the seven layers When most non-technical people hear the term “seven layers”, they either think of the popular Super Bowl bean dip or they mistakenly think about the seven […]

AWS amazon_web_services

AWS Route 53 Service Gets Hijacked

Suspicious event hijacks Amazon traffic for 2 hours, steals cryptocurrency Almost 1,300 addresses for Amazon Route 53 rerouted for two hours. DAN GOODIN – 4/24/2018, 2:00 PM Amazon lost control of a small number of its cloud services IP addresses for two hours on Tuesday morning when hackers exploited a known Internet-protocol weakness that let them to […]

What is a Subnet?

A subnet is division of an IP network (internet protocol suite), where an IP network is a set of communications protocols used on the Internet and other similar networks. It is commonly known as TCP/IP (Transmission Control Protocol/Internet Protocol). The act of dividing a network into at least two separate networks is called subnetting, and […]

multicast routing protocol

Networking 101: Understanding Multicast Routing

Whether you’re watching a celebrity childbirth streaming live from Africa or just trying to help your enterprise network run more efficiently, understanding multicast routing is key. By Charlie Schluting | Posted Jul 27, 2006 Multicast has become a buzzword more than once in history. IP multicast means that one sender is sending data to multiple […]