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Internet Assigned Numbers Authority (IANA) TCP and UDP port number assignment list (http://www.iana.org/assignments/port-numbers) IANA IP protocol ID number list (http://www.iana.org/assignments/protocol-numbers) 5-Minute Security Advisor Essential Security Tools for Home Office Users (http://www.microsoft.com/technet/columns/security/5min/5min-105.asp) Deploying Windows Firewall Settings for Microsoft Windows XP with Service Pack 2 white paper (http://www.microsoft.com/downloads/details.aspx FamilyID=4454e0e1-61fa-447a-bdcd-499f73a637d1&displaylang=en) IPSec Architecture white paper (http://www.microsoft.com/technet/itsolutions /network/security/ipsecarc.mspx) IPSec Implementation white paper (http://www.microsoft.com/technet/itsolutions /network/security/ipsecimp.mspx) Using Microsoft Windows IPSec to Help Secure an Internal Corporate Network Server white paper (http://www.microsoft.com/downloads/details.aspx FamilyID=a774012a-ac25-4a1d-8851-b7a09e3f1dc9&displaylang=en) Improving Security with Domain Isolation: Microsoft IT Implements IP Security (IPSec) white paper (http://www.microsoft.com/technet/itsolutions/msit/security /ipsecdomisolwp.mspx) Security Considerations for Network Attacks white paper (http://www.microsoft.com /technet/security/topics/network/secdeny.mspx) Best Practices for Preventing DoS/Denial of Service Attacks white paper (http://www.microsoft.com/technet/security/bestprac/dosatack.asp) Knowledge Base article 309798, How to Configure TCP/IP Filtering in Windows 2000 (http://support.microsoft.com/kb/309798) Knowledge Base article 816792, How to Configure TCP/OP Filtering in Windows Server 2003 (http://support.microsoft.com/kb/816792)

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file allocation table (FAT) A file system developed by Microsoft for its MS-DOS operating system and later used by Windows. FAT file systems rely on an allocation table that specifies where clusters containing files are located. See also FAT32 file system; NTFS file system. File Transfer Protocol (FTP) A protocol used to move files from one computer to another. In addition to moving files from one place to another, FTP can be used to perform basic file management tasks such as creating directories, deleting files and directories, and renaming the contents of directories. firewall A solution provided by software or a hardware device that protects a LAN or WAN from attacks that originate from hosts outside the protected network. Firewalls can employ a number of methods to protect an internal network, including table access, port filtering, and network address translation (NAT). Windows XP includes a software firewall called Internet Connection Firewall (ICF). See also Internet Connection Firewall; network address translation. Fortezza A security standard outlined by the United States government to ensure that software systems meet the requirements of the Defense Message System architecture. This architectural specification encompasses cryptography, confidentiality, data integrity, authentication, and access control requirements. Fortezza is supported by Internet Information Server in Windows XP Professional.

This chapter is from the Microsoft Windows Security Resource Kit, Second Edition, by Ben Smith and Brian Komar with the Microsoft Security Team (Microsoft Press, 2005) In this chapter: Understanding Mobile Computers 839 Implementing Additional Security for Laptop Computers 843 Securing Wireless Networking in Windows XP 849 Best Practices 853 Additional Information 854 Mobile computers present a special security risk because of their portability and small size They are at much greater risk of physical compromise and are much more difficult to manage Often, when people hear the term mobile computers, they think it applies only to laptop computers But mobile computers also include PDAs, Microsoft Pocket PCs, Microsoft Smartphones, Research In Motion (RIM) Limited BlackBerry devices, and wireless phones Each of these devices can carry secret information, such as passwords, or information that could be used to break into their respective networks.

Further complicating the issue is that a great many of these devices were designed and built without consideration as to their place in the IT landscape rather they were designed and built with single users in mind, and hence they have few security or manageability features..

Mobile computers face all the threats that desktop computers do, but they also face additional threats. These vulnerabilities include the following:

Group Policy A management tool that enables network administrators to control computer configurations as well as user accounts and applications. With Group Policy, network administrators can control desktop settings, Internet Explorer settings, applications, security settings, and many other settings on desktop computers in a Windows domain environment. Local Group Policy can be implemented on stand-alone computers or those in a workgroup setting; however, in a domain environment, it can be overridden by policies specified at the OU or domain level.

Increase in the possibility of being lost or stolen Difficulty in applying security updates Exposure to untrusted networks Eavesdropping on wireless connectivity

Microsoft Visual C# 2008 Express Edition: Build a Program Now!

Part III: