Fortinet NSE 7 Network Security Architect NSE7_PBC-7.2 Question # 13 Topic 2 Discussion

Considering the situation where the administrator is unable to access the FortiGate VM using its public IP address and no traffic is reaching the FortiGate's external interface, the administrator should check:

D. Check the inbound network security group rules.

Network Security Group Rules: AWS uses security groups as a virtual firewall that controls inbound and outbound traffic to AWS resources such as EC2 instances. If the FortiGate VM’s public interface is not receiving HTTPS or SSH traffic, it's likely because the inbound security group rules associated with that interface are not allowing access on the necessary ports (HTTPS - port 443, SSH - port 22).

Troubleshooting: The administrator should verify that the security group rules for the FortiGate VM’s network interface allow inbound traffic on the specific ports used for management access. If these rules are absent or misconfigured, the intended traffic will be blocked, resulting in the inability to connect.

References: The role of security groups in network traffic management is a core concept in AWS and is outlined in AWS documentation. Checking security group rules is a standard troubleshooting step when dealing with connectivity issues to AWS resources.