What is iSCSI

We can use iSCSI to create a Storage Area Network (SAN). iSCSI is a network protocol that encapsulates storage device communication data into IP packets for transmission over an Ethernet connection. This allows IP-connected hosts to access a Storage Area Network (SAN). Traditional Storage Area Networks are based on Fiber Channel. Fiber Channel SANs are very fast … Read moreWhat is iSCSI

Introduction to Remote Access

Before you start Objectives: Learn what is Remote Access, Remote Access Server, and how it is typically used and configured. Prerequisites: no prerequisites. Key terms: remote access, server, configuration, RAS, protocols, PPPoE  What is Remote Access Remote Access allows a host to connect to a server or a private network, and access resources on the server or network … Read moreIntroduction to Remote Access

Connecting to the Internet

Before you start Objectives: Learn about different technologies that can be used to connecto to the Internet. Prerequisites: no prerequisites. Key terms: Internet, connection, technology, Dial-up, ISDN, DSL, Cable, Satellite, Wireless  Public Switched Telephone Network (PSTN) The first method to connect to the Internet is using was PSTN. With PSTN we use a modem device, which takes a … Read moreConnecting to the Internet

Overview of WAN Access Technologies

Before you start Objectives: Learn about different technologies and services which can be utilized to connect to the WAN. Prerequisites: You have to know what a WAN is, and why it is used. Key terms: WAN, PSTN, ISDN, ATM, Frame Relay, SONET, MPLS  Public Switched Telephone Network (PSTN) To connect one site (location) to another, over WAN, we … Read moreOverview of WAN Access Technologies

WAN Organization and Structure

Before you start Objectives: Learn about different parts of WAN, how we call them, who is responsible for which part of the WAN, and about different methods to send data in WAN. Prerequisites: no prerequisites. Key terms: WAN, structure, Packet Switching, Circuit Switching, organization  WAN Components Organizations often rely on (contract with) Service Providers who have the necessary … Read moreWAN Organization and Structure

Configuring Wireless Networks in General

Before you start Objectives: Learn which configuration options are required in order to set up wireless network properly. Prerequisites: you should know about wireless networks in general. Key terms: wireless, network, SSID, access, configure, wap, beacon, NIC, WPA Configuring Wireles Access Point (WAP) The first thing we need to do is to configure the WAP. Most WAPs will … Read moreConfiguring Wireless Networks in General

Overview of Infrared (IrDA) and Bluetooth Standards

Before you start Objectives: Learn what is infrared wireless connection and its specifics, and what is Bluetooth and its specifics. Prerequisites: no prerequisites. Key terms: Bluetoots, devices, Infrared, mode, light, signal, uses, distance, IrDA, network, PAN, wireless  Infrared (IrDA) Infrared technology uses light waves that are just passed the visible light spectrum. The light used comes from three … Read moreOverview of Infrared (IrDA) and Bluetooth Standards

Wireless Security

Before you start Objectives: Learn about common authentication types and security implementations used in wireless networks today. Prerequisites: no prerequisites. Key terms: key, wireless, authentication, WPA, encryption, security, network, WEP, AP, server Security First wireless networks were not very secure. Trough time, security of wireless networks has improved. To protect our wireless network we must configure authentication and … Read moreWireless Security

Overview of 802.11 Wireless Standards

Before you start Objectives: Learn about different wireless standards and their specifics, including 802.11n. Prerequisites: no prerequisites. Key terms: 802.11n, channels, network, standards, wireless, frequency, range, devices, GHz Standards The wireless standards that we are going to talk about here are 802.11a, 802.11b, 802.11g, and 802.11n. Different standards work on different frequency ranges. Frequency The reason why the frequency … Read moreOverview of 802.11 Wireless Standards