Operating Systems and Cisco Security Applications

This chapter reviews two of today's most common end user applications, UNIX and Windows NT systems. Cisco security applications are also covered.

This chapter covers the following topics:

• UNIX—The UNIX operating system and some of the most widely used operating commands. The section looks at the files that are manipulated in UNIX to monitor and maintain usernames and passwords.

• Microsoft NT Systems—Windows NT 4.0 and some of the concepts used to manage users and domains.

• Cisco Secure for Windows and UNIX—Cisco Secure Access Control Server (ACS), the Cisco security application that is available on Windows and UNIX platforms.

• NetSonar and NetRanger—Cisco supported applications, NetSonar (Cisco Secure Scanner) and NetRanger (Cisco Secure Intrusion Detection System), to ensure that networks are secured and tested for vulnerabilities.

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