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When implementing active-active high availability (HA), a floating IP address must be configured to allow the HA pair to share a single IP address that may be used as the network's gateway IP address. This floating IP address ensures that either of the active-active firewalls can assume control of the traffic without interruption in case of a failover.

References:

Palo Alto Networks High Availability Guide: Active-Active HA Configuration

Palo Alto Networks HA Configuration: HA Configuration

VM-Series qcow2 image:

The qcow2 image format is commonly used in OpenStack environments. The VM-Series firewalls are provided in the qcow2 format for compatibility with OpenStack.

NAT (Network Address Translation) protects and hides an internal network in an outbound flow by translating internal private IP addresses to a public IP address. This process masks the internal IP addresses from external networks, providing security and privacy for the internal network. NAT is commonly used in outbound traffic to allow multiple devices on a local network to communicate with external networks while appearing as a single IP address.

References:

Palo Alto Networks NAT Configuration Guide: NAT Configuration

Palo Alto Networks Concepts: NAT

Transit Gateway and Security VPC:

Using a transit gateway in conjunction with a Security VPC is a recommended design for outbound high availability (HA) in AWS. This configuration ensures that traffic can be routed efficiently and securely through the VM-Series firewalls deployed in the Security VPC.

For a customer deploying VM-Series firewalls in a private data center and concerned about protecting resources from malware and lateral movement, the following subscriptions are recommended:

Threat Prevention:This subscription provides comprehensive threat detection and prevention capabilities, including IPS, anti-virus, anti-spyware, and vulnerability protection.

WildFire:This advanced threat intelligence service analyzes suspicious files and identifies new malware, providing protection against zero-day exploits and threats.

References:

Palo Alto Networks Threat Prevention: Threat Prevention

Palo Alto Networks WildFire: WildFire

When using Terraform templates with a Cloud next-generation firewall (NGFW) for Amazon Web Services (AWS), you must enable access to the Cloud NGFW for AWS console to manage and deploy firewall resources effectively:

Access to the Cloud NGFW for AWS console: This access is crucial for the initial setup, configuration, and ongoing management of the Cloud NGFW resources. Terraform templates automate the provisioning and management of these resources, but initial access to the console is necessary to configure and retrieve necessary information (such as API keys and configuration details) for the Terraform scripts.

The CN-Series firewall prevents data exfiltration by inspecting the content of outbound traffic. It uses advanced security features, such as threat prevention and data loss prevention (DLP), to detect and block suspicious activities and unauthorized data transfers, ensuring sensitive data remains within the secure environment.

References:

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

Palo Alto Networks Threat Prevention: Threat Prevention

TLS decryption is the feature that inspects encrypted outbound traffic. By decrypting TLS/SSL traffic, the firewall can inspect the content for threats and enforce security policies. This is crucial for preventing malware and other threats that might hide within encrypted traffic.

References:

Palo Alto Networks TLS Decryption Documentation: TLS Decryption

Palo Alto Networks Security Subscriptions: TLS Decryption

For automating the deployment of VM-Series firewalls from NSX Manager, Panorama must be configured to recognize and communicate with both the NSX Manager and vCenter. This ensures that Panorama can manage the firewall policies and orchestration efficiently.

SSL Inbound Inspection allows VM-Series firewalls to decrypt, inspect, and re-encrypt SSL/TLS traffic coming into the network. This capability enables the firewall to gain visibility into encrypted communication and prevent attacks that exploit known web server vulnerabilities, even when the traffic is encrypted. By inspecting the decrypted traffic, the firewall can apply security policies to detect and block malicious activity.

References:

Palo Alto Networks SSL Decryption Guide: SSL Decryption

Palo Alto Networks SSL Inbound Inspection Documentation: SSL Inbound Inspection