Each of the layers of the OSI model has a well-defined function. The transport layer (Transmission Control Protocol, or TCP), provides crucial end-to-end services, including the assurance of correct ...

TCP, defined as part of the core set of IP (Internet Protocol) layers, provides reliable, ordered, and error-checked delivery of data over an IP network.

Whether it’s wired or wireless, most data communications today happens by way of packets of information travelling over one or more networks. But before these networks can work together, though ...

Network security is tricky business. In his new book Hack the Stack, author and security expert Michael Gregg outlines how to secure the network using the OSI model. By Andrew R. Hickey ...