Category: networking

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Forticlient – The server you want to connect requests identification, please choose a certificate and try again. (-5)

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Hello, Last week, I was confronted to a strange problem with a customer which use Forticlient from Fortinet to establish SSL VPN access from outside to its office. Each time the collaborator wants to establish the connection with the VPN Gateway (a Fortigate 100D, running FortiOS 5.6.3), the following error… Continue reading

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Targeted DoS on Wireless client using DEAUTH attack

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Hello everybody. In this post I will explain step by step how to perform a small DoS attack on a specific Wireless client using the concept of deauthentication attack. This attack targets communications between a client and the access-point on which it is connected. Technical details This attack acts in… Continue reading

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Configure in-Memory logging on Low-end Fortigate without hardisk

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Hello ! in this post I will explain how to configure correctly your low-end Fortigate unit to be able to see correctly your log in memory. I decided to write this post after encountering problem with FortiWifi 60E running FortiOS 5.4.x.  The problem Currently, the new “line” of Fortigate is… Continue reading

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Break “internal” default member on FortiOS 5.4.x on low-end models

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Hello everybody ! This post is the first one about the Fortinet products. Since few months, I have the chance to work with a lot of Fortinet products and I will begin to write some articles about these company. Today, I will briefly explain how to break/configure the “lan” default hardware… Continue reading