Technical Tip: IKEv2 retransmission and DPD

GW · 09-10-2025

Description This article describes how to use the logic AND on FortiProxy to control who can access certain data. Scope FortiProxy, LDAP. Solution LDAP is widely used for authentication. The following is a typical configuration with LDAP on FortiProx...

GW · 07-27-2025

Description This article describes why an end-user behind CGNAT cannot connect SSL VPN. Scope FortiGate, SSL VPN. Solution Along with the IPv4 address exhaustion, the technology called CGNAT is being used widely by ISPs(such as NBN providers in Austr...

GW · 07-15-2025

Description This article describes how to operate certificates across VDOMs via CLI. Scope FortiGate. Solution Generally, the certificate from Global is available for all VDOMs. When the CSR was generated for one specific VDOM, the signed certificate...

GW · 05-06-2025

Description This article describes why the FortiGate cannot establish the Fabric Connector with the FortiClient EMS behind a FortiWeb. Scope FortiGate, FortiWeb, FortiClient EMS. Solution In a certain scenario, the Fabric Connector communication betw...

GW · 05-06-2025

Description This article describes why the end-user was facing an error of 'Access Denied', when FortiGate runs as an explicit web proxy with session-based authentication. Scope FortiGate v7.4+. Solution When FortiGate runs as an explicit web proxy w...

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Technical Tip: Using logic AND for the fine-grained access control

Technical Tip: SSL VPN connection failed for end-user behind CGNAT

Technical Tip: Migrate certificate from one VDOM to Global

Technical Tip: FortiGate cannot establish the EMS connector

Technical Tip: 'Access Denied' error while session-based authentication with explicit web proxy

Technical Tip: IKEv2 retransmission and DPD

Technical Tip: FGSP configuration changes as of v7...

Technical Tip: Why the traffic did not hit the SD-...

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