Palo Alto Networks Certified Network Security Engineer (PCNSE)

Palo Alto firewalls often anchor an organization's security posture. Yet many teams still manage them one device at a time, troubleshoot VPN and NAT failures reactively, and delay App-ID or decryption policies for fear of blocking legitimate traffic. This course gives your security engineers a shared, engineer-level method for deploying, managing, and troubleshooting the platform.

Role fit: Designed for Security Engineers and senior IT Practitioners with three to five years of security appliance experience. Newer team members may be better served by starting with PCNSA training.

Time investment: About 33 hours across 32 skills, most around one hour. Team Leads can assign it in phases, such as Panorama and high availability first, then VPNs, then troubleshooting.

Risk and change management: The course covers centralized management with Panorama templates, template stacks, and device groups to standardize configurations across firewalls. It also covers firewall authentication components, including server and authentication profiles, User-ID, and group mappings. Phased rollout practices, such as piloting SSL decryption with a small subset of users before an organization-wide rollout, help teams reduce change risk. Dedicated skills on troubleshooting routing, NAT, IPsec VPNs, and decryption target the issues most likely to cause escalations.

How CBT Nuggets supports it: Instructor Keith Barker starts by building a PCNSE lab environment that learners use to test and verify features throughout the course. Team Reporting helps IT Directors track each engineer's progress through the material. Palo Alto Networks retired the PCNSE exam on 31 July 2025.

Security teams that manage multiple Palo Alto Networks firewalls lose time to inconsistent configurations, broken VPN tunnels, and decryption rollouts that block legitimate sites. This training walks IT Practitioners through those situations in a working lab. For example, they push interfaces, zones, and policy to managed firewalls through Panorama templates, template stacks, and device groups. They also bring new firewalls online with Zero Touch Provisioning so the devices sync to their device group and template stack.

The course also covers moving off broad "allow any app" rules. Learners use App-ID to find out which applications are actually in use on the network. Then they decide which apps to permit and which risky apps to block.

• More consistent firewall operations: Centralized Panorama management reduces configuration drift and manual per-device changes across the fleet.
• Faster VPN fault isolation: Engineers learn common IPsec failure causes, such as mismatched IKE versions and incompatible ciphers. This applies to site-to-site tunnels, including tunnels to Cisco peers.
• Lower-risk decryption rollouts: Teams follow the practice of piloting SSL forward proxy with a small group of users first. They use dynamic user groups to troubleshoot sites that break under decryption.
• Better control of remote access: GlobalProtect host information profiles (HIP) can limit access for clients that are missing required anti-malware software. WildFire and anti-spyware profiles add analysis of suspicious files and command-and-control traffic.

The result for IT Directors is fewer escalations, shorter outages, and a team that can design, deploy and troubleshoot a full Palo Alto Networks environment.

Knowledge

• How Panorama centralizes firewall management through templates, template stacks, and device groups, and how device groups reference templates for zones and interfaces
• How the Authentication Portal uses certificates and authentication profiles, and how application controls help policy reflect what traffic is allowed
• How security profiles work together: antivirus with WildFire analysis, anti-spyware, vulnerability, zone, and DoS protection
• The interface and deployment options available: Layer 2, virtual wire, TAP, VLAN, and aggregate interfaces, plus high availability and IPv6 alongside IPv4
• Common failure points in routing, such as passive or shut-down RIP interfaces, NAT, decryption, and IPsec policy or connectivity issues
• Remote access options in GlobalProtect, including clientless VPN and host information profile (HIP) checks for endpoint posture

Ability

• Import existing firewalls into Panorama and push consistent configuration, admin authentication (LDAP, RADIUS, TACACS+), and policy to managed devices
• Onboard new firewalls with Zero Touch Provisioning so they sync automatically with device groups and template stacks
• Configure source and destination NAT, static routing, dynamic routing, and QoS, then verify results with real-time statistics
• Build and troubleshoot site-to-site IPsec VPNs, including security policy updates and end-to-end connectivity testing across tunnel endpoints
• Roll out SSL decryption to a small pilot group first, and use dynamic user groups to isolate and resolve sites where decryption fails
• Move from permissive allow-any rules toward application-based policy that blocks risky traffic