Cisco WSA Guides
These guides are a good start for a Cisco Web Security Appliance implementation. A lot of settings are customer specific, so you have to decide which options you’re using. You can use these guides as a guideline for your first WSA configuration.
Part 1: Introduction
Part 2: Installing
Part 3: Deploying Proxy Services
Part 4: Policies
Part 5: Acceptable use & HTTPS Inspection
Part 6: Authentication
Part 7: Defending malware