How to Build Firewall Policies for East West Traffic

Following on from Professor Wool’s previous lesson, this new whiteboard lesson presents a step-by-step process for writing firewall policies for East-West traffic:

• Deploy firewalls with the default setting of ‘allow’.
• Use an iterative process of discovering and identifying the legitimate traffic, and then write explicit ‘allow’ rules for all valid business traffic that goes through the segment.
• Change the default action from ‘allow’ to ‘deny,’ and start filtering traffic in the environment for real to increase security within East-West data center traffic.

Watch this new video to learn more:

Each Professor Wool course examines a core challenge and provides technical tips for managing security policies in evolving enterprise networks and data centers. Courses include:

• Firewall Management 201
• Network Segmentation
• Managing Business Application Connectivity
• Best Practices for Amazon Web Services (AWS) Security