Domains of Trust

To segment a network into parts, based on similar policy and concerns, domains of trust are established. The required system security in a network can vary in terms of importance to the business and the likelihood of being attacked. Consistent security controls should be applied within a segment, and trust relationships should be defined between segments. Segments can have different trust models, depending on the security needed.

Figure 10-10 illustrates two domains of trust examples. Case 1 includes internal and external portions of a network in the domain on the far left; the security policy within that domain will not be consistent, though. In contrast, Case 2 includes four domains, each with unique security requirements, and is therefore a better division into domains of trust.

Figure 10-10 Domains of Trust Case 1

Figure 10-10 Domains of Trust Case 1

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Case 2



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External Servers

External Servers

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Project Management Made Easy

Project Management Made Easy

What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.

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