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jballini · 11-27-2025

Description This article describes how to force a specific certificate chain on both SSL VPN and SSL/SSH Inspection in FortiGate. Scope FortiGate. Solution It is possible to force a specific certificate chain on both SSL VPN and SSL/SSH Inspection in...

jballini · 11-25-2025

Description This article describes a scenario where the FortiGate GUI widget does not show bandwidth in the GUI. Scope FortiGate. Solution In the scenario of Dial-up IPsec the interface will never show bandwidth in the GUI widget, this is an expected...

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...

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Technical Tip: Force a specific certificate chain on SSLVPN and SSH/SSL inspection profiles

Technical Tip: Dial-up IPsec interfaces are not monitored from GUI widget

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