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jballini · 06-27-2025

Description This article describes how to check if all the CPU cores are highly utilized or not. Scope FortiGate. Solution Sometimes, one Core CPU can show high usage, but that does not mean there is a high CPU usage. From FortiGate GUI, go underDash...

jballini · 04-25-2025

Description This article describes how to upgrade the secondary firewall from version x to version y and ensure minimum disruption to network traffic. Scope FortiGate. Solution Requirements. All configurations must be backed up. Before starting the u...

jballini · 03-18-2025

Description This article describes how to interpreter debug output with code 221 Scope FortiGate Solution In this scenario, Customer has set up automation in FortiGate to receive an email when someone log in with SSL VPN. To investigate, the below de...

jballini · 02-27-2025

Description This article describes how can be determined if a website is using HTTP Strict Transport Security (HSTS). The way HTTP Strict Transport Security (HSTS) works is that a website using HSTS will forcibly connect to itself only over HTTPS by ...

jballini · 11-25-2024

Description The article describes a troubleshooting step for a specific certificate issue and provides steps on how to make sure the CA that has generated the certificate is available in the Customer PC/laptop Windows OS Scope FortiGate. Solution The...

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Troubleshooting Tip: High CPU usage on a single Core

Technical Tip: How to upgrade only one unit of a cluster in order to check the situation whether there is any issue in that upgraded unit

Technical Tip: How to troubleshoot automation email alert with debug code: 221

Technical Tip: Determine if an URL is using HTTP Strict Security (HSTS)

Technical Tip: Verify if the CA certificate in Windows PC/laptop is matching the Certificate in FortiGate