PRACTICAL NETWORK SECURITY
Network Security & Firewall Guides for IT Professionals
Step-by-step FortiGate and Palo Alto configuration guides, real-world troubleshooting, VPN, NAT, security policies, lab guides and practical network-security engineering.
What You’ll Find on NetworkFix
Focused technical resources built around real network-security tasks.
🛡️ Palo Alto
Configuration, NAT, security policies, GlobalProtect, IPsec, URL filtering, certificates, logging and troubleshooting.
🔥 FortiGate
Firewall policies, NAT, VPN, SD-WAN, HA, SSL inspection, FortiManager, LDAP, packet capture and flow debugging.
🧪 Labs & Troubleshooting
Practical lab scenarios, verification commands and troubleshooting workflows for network and security engineers.
Latest Network Security Guides
View all tutorials →Recent practical guides for firewall administration, configuration and troubleshooting.
-
Palo Alto Active-Passive High Availability Configuration and Failover Testing
Build and validate a Palo Alto active-passive HA pair, then test peer failure, synchronization and traffic recovery.
-
GlobalProtect Split Tunneling on Palo Alto Firewall: Design and Configuration
Design GlobalProtect split tunneling so corporate destinations use the VPN while approved Internet traffic follows the local path.
-
Palo Alto GlobalProtect Configuration with a Remote User Example
Configure a Palo Alto GlobalProtect remote-user deployment with authentication, tunnel verification and practical troubleshooting checks.
-
FortiGate Session Troubleshooting with Flow Debug, Sessions and Logs
Trace a FortiGate session through policy, routing, NAT, flow debug and logs to isolate why traffic is not behaving as…
-
FortiGate Packet Sniffer and Debug Flow for Real Troubleshooting
Use FortiGate packet sniffer and debug flow together to determine where traffic is lost and how the firewall processes it.
-
FortiGate SSL Deep Inspection: Design, Configuration and Troubleshooting
Configure FortiGate SSL deep inspection and troubleshoot certificates, policy scope, browser trust and inspection failures.
Built for Hands-On Security Work
NetworkFix focuses on implementation knowledge rather than recycled security headlines.
Real Configuration Examples
Follow practical GUI and CLI workflows using clearly labelled lab values and deployment scenarios.
Troubleshooting
Work through logs, packet flow, authentication, VPN and policy problems with verification steps.
Security Engineering
Learn firewall hardening, segmentation, inspection, access control and operational best practices.
Start Learning
Choose a path and build practical firewall and network-security skills.
Frequently Asked Questions
Are the NetworkFix guides based on practical configurations?
Yes. The tutorials use clearly labelled example environments, configuration steps, verification commands and troubleshooting workflows so readers can reproduce the concepts safely in a lab or adapt them to their own environment.
Which firewall platforms does NetworkFix cover?
The main focus is FortiGate and Palo Alto Networks firewalls, with supporting material on VPNs, NAT, routing, security policies, logging, inspection and network-security operations.
How should I use a troubleshooting guide?
Start with the prerequisites and topology, reproduce the reported symptom, then use the verification and diagnostic commands in the guide to isolate the failure point before changing production configuration.
Who is NetworkFix written for?
NetworkFix is aimed at network engineers, firewall administrators, security engineers and IT professionals who need practical implementation and troubleshooting guidance.