Fortinet NSE 4 case studies
Fortinet NSE 4 · Put your knowledge to work in context.
The Fortinet NSE 4 - FortiOS Administrator exam is the proctored assessment that leads to the NSE 4 FortiOS certification. Fortinet describes that certification as validating your ability to configure, operate, and administer FortiGate devices to secure networks and applications, and recommends it for network and security professionals who need the expertise to configure and administer firewall solutions in an enterprise network security infrastructure. Expect the exam to probe the everyday work of a FortiGate administrator: system and network settings, firewall policies with security profiles and traffic shaping, authentication and VPN, routing and SD-WAN, plus the diagnostics and troubleshooting habits that keep a live device healthy. Fortinet recommends taking the associated NSE course before sitting the exam, and free self-paced FortiOS Administrator training is available through the Fortinet Training Institute, with optional on-demand labs for hands-on practice. The Fortinet NSE 4 case studies are 5 cases and about 2,994 words.
1Hairpin NAT for an Internal Web Server
A FortiGate 100F at HQ has wan1 203.0.113.10/29 and internal 10.10.0.0/16. A web server at 10.10.20.50 listens on TCP 443.
582 words, about 3 min2The SD-WAN Rule That Never Matches
A FortiGate 200F uses an SD-WAN zone with wan1 (1 Gbps fiber) and wan2 (200 Mbps LTE). Health check HC probes 8.8.8.8 and 1.1.1.1 every 500 ms with failtime 5, recoverytime 5, and an SLA of latency <100 ms, jitter <30 ms, loss <2%.
673 words, about 3 min3The Shaper That Doesn't Shape and the QUIC That Escapes
A FortiGate 60F has wan1 200/50 Mbps. Guest VLAN 10.50.0.0/24 and staff 10.10.0.0/24.
613 words, about 3 min4Authenticated but Not Authorized on SSL VPN
A FortiGate 80F terminates SSL VPN on wan1:443 with a public certificate. LDAP CORP-AD points to 10.10.5.10.
557 words, about 3 min5Reading Debug Flow When Only Some Flows Fail
A FortiGate 100F has internal1 10.10.0.1/24 (staff 10.10.10.0/24) and internal2 10.20.0.1/24 toward a core switch. A route 10.20.0.0/16 points to 10.20.0.1.
569 words, about 3 min