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Network Protocols
IPSec is one of the new buzz words these days in the networking security area. It's becoming very popular and also a standard in most operating syste…
Network Cabling
The Parallel Direct Connection is the second solution covering the transfer of data from one computer to another. The cable required is slightly more…
Network Cabling
The cross-over (or crossover) CAT5 UTP cable has to be one of the most used cables after the classic straight-thru cable. The cross-over cable allows…
The OSI Model
The Datalink ensures that messages are delivered to the proper device and translates messages from the Network layer into bits for the Physical layer…

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Netflow Articles:

This article will cover the basics of Netflow, including its use cases, Netflow supported devices, Netflow history, and variants. We’ll also dive int…
Monitoring network traffic & bandwidth usage via Netflow is mandatory for any type and size network. Gaining visibility into user traffic, applic…
In this article, we explore the core principles of bandwidth management and examine how modern network monitoring technologies can assist in maintain…
In our previous article we explained how a Netflow Analyzer can help you gain visibility into your user traffic, application traffic and data flows w…

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VLAN Networks
We hear about them everywhere, vendors around the world are constantly trying to push them into every type of network and as a result, the Local Area Netw…
VLAN Networks
This article deals with the popular topic of InterVLAN routing, which is used to allow routing & communication between VLAN networks. Our article anal…
VLAN Networks
The previous article introduced the VTP protocol, we examined how it can be used within a network, to help manage VLANs and ease the administrative overhe…
VLAN Networks
VLANs are usually created by the network administrator, assigning each port of every switch to a VLAN. Depending on the network infrastructure and securit…

Routing
Link State routing protocols do not view networks in terms of adjacent routers and hop counts, but they build a comprehensive view of the overall network…
Routing
This is the third article of our OSPF series which analyzes the different OSPF States routers go through during the OSPF discovery and neighbor forming pr…
Routing
This is the thrid article of our 6-part OSPF series (see below) that describes how OSPF routers perform neighbor relationship and adjacency. We’ll examine…
Routing
Distance Vector, Link State RIP, IGRP, EIGRP, OSPF Routing protocols were created for routers. These protocols have been designed to allow the exchange…

Cisco Routers
Introduction Let's see what it looks like to be in User-Exec mode on a Cisco router. Below, we have telneted into our lab router and are in User Exec Mod…
Windows Servers
Using Hyper-V Server virtualization technology, you can virtualize your physical environment to reduce the cost of physical hardware. As part of IT best p…
Cisco Wireless
The Firewall.cx Wireless LAN Key Generator will allow the generation of a WEP or WPA ASCII based encryption key and will provide the equivalent HEX or…
Windows Servers
Windows roaming profiles allow the mobile users of a company to always work with their personal settings from any network computer in a domain. Roaming pr…