Accessing the WAN: Ch4 - Network Security

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These slides discuss the basics of network security.
The first question that should be answered is, why is network security important?
Understanding the increasing threats to security from the past to today.
How to think like an attacker?
Step 1. Perform footprint analysis (reconnaissance).
Step 2. Enumerate information.
Step 3. Manipulate users to gain access.
Step 4. Escalate privileges.
Step 5. Gather additional passwords and secrets.
Step 6. Install backdoors.
Step 7. Leverage the compromised system.
The trade off between open versus closed networks.
Developing a security policy for the company or organization is a must.
Understanding the common security threats and the different types of network attacks.
Finally, general mitigation techniques and the security appliances and applications

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