Phase 3. Maintaining and Securing the Network

Phase 3 comprises many tasks that an administrator performs during the life of an established internetwork, including securing the infrastructure against active assaults, as well as more passive issues, such as spyware infiltration. In addition to spyware mitigation, this phase treats the issue of scanning for viruses and keeping your operating system current with the latest updates. Some of the tasks in this phase concentrate on authorizing users and their administrative groups for access to services and resources, denying others implicitly or outright.

Attacks on networks and their resources vary ...

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