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Cisco NAC Appliance : ウィキペディア英語版 | Cisco NAC Appliance
Cisco NAC Appliance, formerly Cisco Clean Access (CCA), is a network admission control (NAC) system developed by Cisco Systems designed to produce a secure and clean network environment—the NAC appliance is however still referred to as Cisco Clean Access by some in the industry or Universities such as University of Alabama in Huntsville and Cleveland Clinic. Originally developed by Perfigo and marketed under the name of Perfigo SmartEnforcer, this network admission control device analyzes systems attempting to access the network and prevents vulnerable computers from joining the network. The system usually installs an application known as the Clean Access Agent on computers that will be connected to the network. This application, in conjunction with both a Clean Access server and a Clean Access Manager, has become common in many universities and corporate environments today. It is capable of managing wired or wireless networks in an in-band or out-of-band configuration mode, and Virtual Private networks (VPN) in an in-band only configuration mode. ==Clean Access Agent== The Clean Access Agent (abbreviation: CCAA, "Cisco Clean Access Agent") resides on the client's machine, authenticates the user, and scans for the required patches and software. Currently the Clean Access Agent application is only available for some Windows and Mac OS X operating systems (Windows 98, Windows Me, Windows 2000, Windows XP, Windows XP Media Center Edition, Windows Vista, Windows 7, Windows 8 and Mac OS X);〔http://www.cisco.com/c/en/us/td/docs/security/nac/appliance/support_guide/agntsprt.html〕 most network administrators allow clients with non-Windows operating systems (such as Mac OS 9, Linux, and FreeBSD) to access the network without any security checks (authentication is still required and is usually handled via a Web interface).
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Cisco NAC Appliance」の詳細全文を読む
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