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Short demos which illustrate some basic FortiGate configurations.

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Technical Note: Traffic handled by FortiGate for packet which ingress and egress same interface    Knowledge Article
This article describes default behavior of how packets are treated by FortiGate once packet should ingress and egress same logical interface. By
Technical Note: Packet Sniffer (CLI/Web GUI) is missing packets while running a trace    Knowledge Article
While troubleshooting issues related with loss of packets and there is need to use the sniffer capture, it could happen the sniffer does not capture all
Technical Note: Deny TCP by sending an ICMP Communication Prohibited packet    Knowledge Article
This article describes how to configure a FortiGate to send an ICMP Communication Prohibited packet denying (drop) ICPM, TCP and UDP packet for both IPv4 and IPv6.
Technical Note: Authentication, Remote server group match of user group configuration with RADIUS se...    Knowledge Article
The purpose of this article is to clarify the usage of specific (non-default, which is "Any") string in group match, which can be
Technical Note: How to turn off DTLS encryption on control plane    Knowledge Article
This article describes the steps to disable DTLS encryption in communication between FortiGate controller and FortiAP. To disable DTLS encryption (enabled by default): On the
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Most Popular   1 - 5 of 10    < prev | next 5 >
Technical Note : Loading FortiGate firmware image using TFTP    Knowledge Article
Description This article describes how to download and install firmware from a local TFTP server via the BIOS, under CLI control. Caution: Installing firmware from a local TFTP
Configuring Dual Internet Links (Design Considerations)    Knowledge Article
Description There are two separate considerations when using two Internet uplinks: Link Redundancy and Load Sharing. These two features can be combined or implemented separately.
“The system has entered conserve mode” FortiGate log message explanation    Knowledge Article
“The system has entered conserve mode” FortiGate log message explanation DescriptionAn explanation of the log message "The system has entered conserve mode."Components · All FortiGate units · FortiOS Steps or Commands The FortiGate
Troubleshooting Tool : Using the FortiOS built-in packet sniffer    Knowledge Article
Introduction Sniffer Basics · Basic sniffing command · Example 1 : Simple trace · Example 2 : Simple trace Filter Functionality · Example 3 : Trace with filters
Troubleshooting Tip : debug flow messages "iprope_in_check() check failed, drop" - "Denied by forwar...    Knowledge Article
Troubleshooting Tip : debug flow messages "iprope_in_check() check failed, drop" - "Denied by forward policy check" - "reverse path check fail, drop" When troubleshooting connectivity problems, to or through a FortiGate, with the "diagnose
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