We often hear that network security is a multi-layered or multi-level concept, but exactly what are the specific layers? Moving from the most abstract to the most specific, we define the major levels of network security as:

• Policy level.
  This is all about planning, strategy, and decision-making. At this level, you define the organization’s security needs and make rules designed to meet those needs.
  
• Physical level.
  This pertains to the physical security of your network’s components. It includes the obvious—physically controlling access to workstations, servers, and network devices such as firewalls, routers, and switches. It also includes preventing unauthorized persons from obtaining physical possession of or access to the network cable (or, in the case of wireless networking, airwaves). Finally, it involves protecting network information that’s in hard copy form, such as written password lists and network diagrams, as well as smart cards, tokens, keys to removable hard disks, backup tapes, CDs, and anything else that pertains to your network.
  
• Perimeter level.
  This involves stopping unauthorized persons or data from entering your local network from across the internet, through the phone lines, or other outside locations. The most obvious manifestation of perimeter security is the firewall, but it also includes network access controls in the form of logon authentication, intrusion detection systems, network-based anti-virus systems, network-based spam filtering, remote access quarantine controls and similar methods of keeping undesirable packets out of the network.
  
• Host level.
  This includes security mechanisms designed to protect individual systems, such as host-based firewalls like the Windows firewall, host-based IDS and anti-virus programs, client-side spam filtering programs, operating system hardening and security patches, and securing individual applications.
  
• Data level.
  This pertains to security of the data stored on your computer or sent across the network, and includes encryption technologies such as NTFS file level encryption, third-party disk/partition encryption, and IPsec encryption to protect data in transit. It also includes folder and file level access controls such as Windows share and file permissions.

By implementing security at multiple levels (preferably at all of the levels listed), you avoid the dangers of a single point of failure when it comes to protecting your network.

APRIL

Introduction to Tips & Tricks for Microsoft Office 2007 (Level 100)

Get the most out of the Microsoft Office 2007 System. As someone beginning to use Microsoft Office 2007, you will learn about new features and timesavers to help you in your day-to-day work. This session is good for beginner, intermediate, or advanced users – everyone will learn something! The Microsoft Office System has evolved from a suite of personal productivity products to a more comprehensive and integrated system. This presentation will demonstrate useful tips and tricks for Outlook, Word, Excel and PowerPoint.

• Presenter: Andy Reed, Senior Training Specialist, Microsoft Corporation
• Date: Wednesday, April 15, 2009
• Time: 10 am Pacific; 12 pm Central; 1 pm Eastern
• Click here to register: www.newhorizons.com/webinars

Tips and Tricks for Maximizing Outlook 2007

Attend this webinar and witness how Microsoft Office Outlook 2007 delivers the functionality to provide better information sharing including publishing and sharing calendars, and exporting Outlook data. Also, see how Outlook 2007 can be configured using settings, trust, add-ins, and customized appearance and content. In this session, we also provide a better under standing of some of the terms used for communications and the capabilities; see Really Simple Syndication (RSS) versus XML, phishing, signatures, and other useful features of Outlook 2007

• Presenter: Andy Reed, Senior Training Specialist, Microsoft Corporation
• Date: Wednesday, April 22, 2009
• Time: 10 am Pacific; 12 pm Central; 1 pm Eastern
• Click here to register: www.newhorizons.com/webinars

MAY

Intermediate Tips & Tricks for Microsoft Office 2007 (Level 200)

Get even more out of the Microsoft Office 2007 System. As someone who has worked with the Microsoft Office system for some time, you will discover efficient ways to configure, customize and utilize Microsoft Word, Excel and Outlook to get the most out of Microsoft Office. The presentation will demonstrate useful tips and tricks for Microsoft Outlook, Word and Excel. In addition, you will see useful ways to interact between these Microsoft applications.

• Presenter: Andy Reed, Senior Training Specialist, Microsoft Corporation
• Date: Wednesday, May 6, 2009
• Time: 10 am Pacific; 12 pm Central; 1 pm Eastern
• Click here to register: www.newhorizons.com/webinars

Introducing Microsoft Windows Vista® for Microsoft Office 2007 Users (100)

This webinar introduces to those familiar with Microsoft Office the features of Microsoft Vista that best suits them. You will see the advantages of using Windows Vista and Office together including better file origination, starting programs, search, communication, and Internet navigation. Get tips & tricks to better share and find your files, discover the consistency of search capabilities throughout Windows Vista, and navigate the new features of Internet Explorer. From this session, you’ll get a number of tips to help you immediately benefit from installing Windows Vista into your Microsoft Office 2007 environment.

• Presenter: Andy Reed, Senior Training Specialist, Microsoft Corporation
• Date: Wednesday, May 20, 2009
• Time: 10 am Pacific; 12 pm Central; 1 pm Eastern
• Click here to register: www.newhorizons.com/webinars

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