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VM-Series Auto Scaling:

The VM-Series firewalls are designed to integrate with cloud environments like AWS and support auto-scaling. This allows for the deployment of a single auto-scaling group (ASG) of VM-Series firewalls to secure inbound traffic from the internet to AWS application workloads.

The CN-Series firewalls are purpose-built for securing Kubernetes environments. They provide network security, visibility, and threat prevention specifically tailored to containerized applications and microservices running in Kubernetes.

Intrusion Prevention System (IPS):The CN-Series firewalls incorporate an Intrusion Prevention System to detect and prevent exploits and attacks on applications and systems. This feature is essential for securing east-west traffic, as it can identify and block threats within the data center traffic between pods in different trust zones.

Layer 7 Visibility:CN-Series firewalls provide Layer 7 (application layer) visibility, enabling deep inspection of application traffic. This allows the firewall to understand and enforce policies based on the application and its behavior, rather than just ports and protocols, ensuring comprehensive security for east-west traffic within a Kubernetes environment.

References:

Palo Alto Networks CN-Series Datasheet: CN-Series Datasheet

Palo Alto Networks CN-Series Documentation: CN-Series Documentation

Ping monitoring:

This mechanism involves monitoring the reachability of a specified IP address. If the firewall cannot ping the address, it may trigger a failover.

Creating a New Virtual Switch:

By creating a new virtual switch, you can segment the network within the ESXi environment. The VM-Series firewall can then be used to provide security controls between these virtual switches using virtual wire mode.

Microsegmentation is a security technique that enables granular control of east-west traffic within a software-defined network. By dividing the network into smaller segments, each with its own security policies, microsegmentation allows for detailed control over communication between workloads, thereby reducing the attack surface and preventing lateral movement of threats within the network.

References:

Palo Alto Networks Microsegmentation Guide: Microsegmentation Guide

VMware NSX Microsegmentation: NSX Microsegmentation

Zero Trust implementation revolves around the principle that no entity, inside or outside the network, should be trusted by default. The primary methods that benefit an organization are:

Security automation is seamlessly integrated: Zero Trust requires continuous monitoring and verification of every device and user attempting to access resources. Automation helps in efficiently managing these processes, ensuring that security policies are consistently enforced without human error. Automated tools can quickly detect anomalies, respond to threats, and update access controls dynamically.

The Palo Alto Networks Next-Generation Firewall must be integrated into the Layer 3 underlay network to secure traffic within a Cisco ACI environment.

Reference: Integration documentation for Cisco ACI and Palo Alto Networks indicates the necessity of Layer 3 integration for policy enforcement and traffic management.

Palo Alto Networks and Cisco ACI Integration

CN-Series for EKS Security:

The CN-Series firewalls are specifically designed to secure Kubernetes environments, such as Amazon EKS. Deploying them in a high availability (HA) pair ensures robust, fault-tolerant security for containerized workloads, providing continuous protection and high availability.