Spoiler alert: Current FortiOS versions do not allow BGP blackhole routing. But we have a workaround ready for you.
FortiGate and BGP Blackhole Routing
CheatSheet – FortiAnalyzer & FortiManager v7.4
We have updated our CheatSheet for the FortiAnalyzer/FortiManager to the OS version 7.4. We still have the divided sections for FortiAnalyzer Logging, FortiAnalyzer Reporting and FortiManager with all of our regularly used commands and some CLI-based debug examples that are also featured in the official training materials. We hope that…
Is Your FortiGate Under Attack?
In this article, we want to point out some indicators used to determine if your FortiGate is under attack.
FortiGate with FortiOS 7.4: First Configuration Steps
Last update: 29. January 2025 In our daily support work we often see FortiGates in use on which the basic settings like time zone, host name and so on have never been set correctly. Therefore we would like to provide you with a small guide on this page, with which…
Remediation Steps if your FortiGate got Hacked or Attacked
… or accessed from any unauthorized party. In some cases it’s not even necessary to hack a system to gain access to it. For example it may be enough to leak a configuration file to allow unauthorized system access. Fortunately, many cases of a suspected hack turn out to be…
Crucial Information for FortiGate Admins: Transition to FortiOS 7.4.4 and the Discontinuation of Proxy-Based Features on Devices with 2GB of RAM or less
In a significant move by Fortinet, the upcoming FortiOS version 7.4.4 introduces a pivotal change affecting numerous FortiGate devices. Users planning to upgrade need to be aware of the substantial shift from proxy-based features, which will no longer be supported under this new firmware version.
Webserver are Suddenly not Reachable Anymore due to TLS 1.3 Hybridized Kyber Support
In the last days we have had several support cases that suspiciously all had the same error description: many web servers can no longer be reached with the Chrome or Edge browser. In our cases typically the Webfilter feature from one of our firewalls has been involved. Right now we…
FortiGate Memory and CPU Troubleshooting
Last Updated: 29. January 2025 From time to time we face performance problems on FortiGate units in our daily support life. Most often the impacts of performance problems on the FortiGate are not typical. Or let’s say “not as an admin that is not familiar with FortiGates would expect”. The…
CheatSheet FortiOS v7.4
We are happy to present you the new cheat sheet for FortiOS version 7.4.If you have an idea for the cheat sheet, please let us know in the comments. (Updated to v1.2, 17.02.2025) We wish you good luck with troubleshooting.
FortiGate throughput troubleshooting
Limited throughput on network devices is a common problem. We handle a lot of cases with thtroughput issues and have written a guide on how we recommend to start troubleshooting in such cases.
