Technology Strategies for the Hospitality Industry© 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Networks and Security Chapter 4

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Interview Nicholas Poretta Director of Telecommunications Atlantic City Convention Center

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Interview (cont.) Basics: Before anything else, visit local physical security-“have a good lock on that door” Analyze current hardware and software usage Maintain redundant links Have a backup plan!

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Interview (cont.) The future: Create a seamless, wireless network for the web enabled traveler that is secure!

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Introduction Benefits of Networking  Allow resources to be shared  Allow data and information to be shared Networking Objectives  Security = Safe  Performance = Fast  Reliability = Running

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Small Networks Nodes Network Interface Cards (NIC) Bits Per Second (BPS) Local Area Network (LAN)

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Medium Twisted Pair Copper Wires  RJ-11  RJ-45 Coaxial Cable Fiber Optics Wireless

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Network Architecture Topology  Bus  Ring  Star Hub vs. Switch Network Operating System (NOS) Servers  File  Print  Database  Web Client/Server (C/S) vs. Peer to Peer

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Large Networks Convergence Channel Packet Switching vs. Circuit Switching Modem Multiplexers Concentrators Wide Area Networks (WAN) Bandwidth

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Transmission Technologies ISDN (Integrated Services Digital Network) DSL (Digital Subscriber Lines) Cable Modems T1 Backbone  Frame Relay  Asynchronous Transfer Mode (ATM)  T3  Synchronous Optical Network (SONET)

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey The Internet Network Protocol  Error Checking  Data Compression  Sending  Receiving TCP/IP (Others: NetBui and IPX) Gateways

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Internet Addresses IP Address  Static vs. Dynamic  Domain Name Server (DNS) IP Address: Web Address: Domain:.com.edu.gov.int.mil.net.org Two-letter country code such as.us.uk.de ICANN:.biz.pro.museum.aero.name.coop.info ICANN Routers

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey World Wide Web Part of the Internet Uniform Resource Locator (URL) Hypertext Markup Language (HTML) Extensible Markup Language (XML) Browsers Search Engines

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Internet Layout Web Server Intranet Extranet

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Large Wireless Networks Microwave Satellites Cellular Personal Communication Services (PCS) Wireless Application Protocol (WAP) Wireless Markup Language (WML)

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Other Network Usage in the Enterprise Electronic Data Interchange (EDI) Example -payroll

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Security Virtual Private Network (VPN) Firewall Demilitarized Zone (DMZ) Encryption (128-Bit) Internal Controls Social Engineering

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Forward Looking Issues in Hospitality Videoconferencing Wireless Networks – Security Issues Voice Over Internet Protocol (VOIP)

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Summary A “down” network can result in lost revenue Managers must understand networks, not just delegate Security all too important–have a plan and test it!

Technology Strategies for the Hospitality Industry © 2005 Pearson Education, Inc Nyheim, McFadden, & Connolly Upper Saddle River, New Jersey Further Information