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birt code 39,
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3 Reduce the administration attack surface Reducing the attack surface is a sound security design principle that can be applied to any part of your security design If you can reduce the number of things that can be attacked or the avenues that can be used to attack them, the network will be more secure Reducing the attack sur face can take many forms, but one of the easiest things to do is to eliminate things that are not needed To reduce the ability of attackers to use administrative accounts and channels to attack networks, reduce the number of things in total that administrators must manage and reduce or partition the scope of their man agement by delegating authority While these actions are also examples of least privilege, they illustrate a reduction in the attack surface quite nicely.

Note You can define only one wireless network policy for a domain or OU. If a wireless network policy already exists, the option to create a new wireless network policy is not available.

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If the admin istrator s account were to be compromised, the attacker would have less ability to do damage because the surface or range of things that can be attacked has been reduced 4 Evaluate and carefully judge your administrators The people who are trusted with the administration of your network must be trustworthy Although you can limit authority, every bit of authority can be used to destroy important parts of your systems and data In addition, at some point, someone must have absolute authority to keep systems running, correct errors introduced by others, troubleshoot problems, and so on Checking the backgrounds of potential administrators and repeating the process periodically is crucial to the survival of your information systems 5 Monitor and audit administrative work.

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The relationship between the Employee and Customer entities is unidirectional, so the Employee bean class doesn t define any relationship back to the Customer. All of this should be mundane to you now. The impact of exchanging Employee references between Customer entities works just as we ve seen with the previous relationship types.

Administrators are people: they make mistakes, they have needs and desires, they face temptations, and they are as likely to want to harm systems as any other employee The difference is that administrators have the power and authority to harm systems easily Often because an administrator has unlimited privileges, an attacker with administrative credentials or a malicious administrator can prevent operations from being audited or can delete the audit record of his activity by deleting the security log The following topics provide the information and guidelines you need to complete most of these tasks..

policy. Using the wizard, you can specify a name and description for the wireless net-

following:

Note Evaluating the trustworthiness of administrators is beyond the scope of this book, but it must be done. It is a topic for the legal and human resources departments of your orga nization to pursue. You can, however, protect your network from untrustworthy administrators by ensuring sound security principles are practiced, by designing an Active Directory infra structure that meets your autonomy and isolation needs, and by auditing the actions of administrators. Auditing is discussed in 9.

One-to-many and many-to-one bidirectional relationships sound like they re different, but they re not. A one-to-many bidirectional relationship occurs when one entity bean maintains a collection-based relationship property with another entity bean, and each entity bean referenced in the collection maintains a single reference back to its aggregating bean. For example, in our company an employee has a manager, and likewise a manager has many direct reports. The relationship is a one-to-many bidirectional relationship from the perspective of the manager (an Employee) and a many-to-one bidirectional relationship from the perspective of the report (also an Employee). For fun s sake, let s label reports in this sense as peons. This becomes an interesting exercise as well, because it shows that relationships may exist within a single entity type.

The Public Key Policies security area, shown in Figure 13-1, is used to deploy a public key infrastructure in your organization. A public key infrastructure (PKI) is a system of laws, policies, standards, and software that verify and authenticate the validity of each party involved in an electronic transaction.