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Understanding and selecting authentication methods

Understanding and selecting authentication methods
If you are serious about computer/network security, then you must have a solid understanding of authentication methods. Debra Littlejohn Shinder takes a moment to lay out the role authentication plays in a security plan. Computer/network security hinges on two very simple goals:Keeping unauthorized persons from gaining access to resourcesEnsuring that authorized persons can access the resources they needThere are a number of components involved in accomplishing these objectives. One way is to assign access permissions to resources that specify which users can or cannot access those resources and under what circumstances. (For example, you may want a specific user or group of users to have access when logged on from a computer that is physically on-site but not from a remote dial-up connection.) Access permissions, however, work only if you are able to verify the identity of the user who is attempting to access the resources. How does authentication work?

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Five free network analyzers worth any IT admin's time If you work on a network, you then know the value of information. Solid information leads to a strong and worry-free network (or at least as worry-free as you can manage). In order to gather that information, you need the right tools. What are malware, viruses, Spyware, and cookies, and what differentiates them ? What are malware, viruses, Spyware, and cookies, and what differentiates them ? "Malware" is short for malicious software and used as a single term to refer to virus, spy ware, worm etc. Malware is designed to cause damage to a stand alone computer or a networked pc. So wherever a malware term is used it means a program which is designed to damage your computer it may be a virus, worm or Trojan. Worms:- Worms are malicious programs that make copies of themselves again and again on the local drive, network shares, etc. The only purpose of the worm is to reproduce itself again and again.

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Wi-Fi Protected Setup Flaws Make Wireless Network Brute-force Attacks Feasible Design flaws in the Wi-Fi Protected Setup (WPS) wireless standard can make it easier for attackers to obtain access codes for secured wireless networks by brute force. The vulnerabilities identified by security researcher Stefan Viehbock affect a large number of WPS-enabled routers and wireless access points. The WPS standard was created in 2007 by the Wi-Fi Alliance in order to provide non-technical users with a simple method of setting up wireless networks. The standard supports several Wi-Fi authentication methods including one that requires pushing a physical button on the router and one that uses a predefined PIN number printed on a sticker by the device manufacturer.

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