NetSec-Pro Exam Dumps : Palo Alto Networks Network Security Professional

Protecting againstmaliciousandmisconfigured domainsrequires two critical services:

Advanced Threat Prevention

Provides signature-based and advanced analysis to identify threats, including DNS-based attacks.

“Advanced Threat Prevention enables the NGFW to detect and prevent exploits and malware-based communications, including those leveraging DNS.”

(Source: Advanced Threat Prevention)

Advanced DNS Security

Specifically designed to detect and sinkhole malicious and misconfigured DNS queries.

“DNS Security uses real-time intelligence to block DNS-based threats, protect against data exfiltration, and automatically sinkhole suspicious domain lookups.”

(Source: DNS Security)

Bycombiningthese services in security policies, NGFWs ensure robust protection against domain-based threats and misconfigurations.

Single floating IP address(also known as a floating IP or shared IP) is supported only in anactive/passiveHA pair. In active/active HA, both firewalls are forwarding traffic simultaneously and thus do not share a single floating IP.

“In active/passive HA, a single floating IP address is used for seamless failover. Active/active HA requires separate IP addresses and does not support a single floating IP.”

(Source: Active/Passive vs. Active/Active HA)

Thissimplifies failoverin active/passive deployments by using a single shared IP that moves to the active peer upon failover.

When implementing SSL Forward Proxy decryption for outbound traffic, two key challenges that must be evaluated are:

Incomplete certificate chains: This occurs when the firewall cannot validate the entire certificate chain for a site, which may cause decryption failures.

Certificate pinning: Applications like banking apps may use certificate pinning to prevent MITM (man-in-the-middle) attacks, and these applications will break if SSL Forward Proxy is used.

“When decrypting outbound SSL traffic, you must consider incomplete certificate chains, which can cause decryption to fail if the firewall cannot validate the entire chain. Also, be aware of certificate pinning in applications that prevents decryption by rejecting forged certificates.”

(Source: Palo Alto Networks Decryption Concepts)