FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
This article will explain how to resolve the issue when the customer is unable to access the firewall via CLI console and Getting error message as "fork()failed" on the firewall CLI console
Scope
FortiGate
Solution
This error occurs when the firewall does not have enough memory to run the firmware installed on the firewall.
This is in turn related to high memory utilization which consumes
space allocated for the firmware to load onto the firewall.
The only solution to resolve this issue is to reboot the firewall to
free up memory utilization so that once free memory is available firewall memory will allow the firmware version to load successfully.
TAC's recommendation is to optimize firewall memory utilization to avoid facing this issue. Please find the below document for optimizing firewall memory utilization.
