Hi all, another vulnerability – log4j – is keeping us all on our toes.In this blog article you will find information about log4j from our vendors.
Information on Log4j Vulnerability / CVE-2021-44228
Fortigate S2S-Dialup VPN – Traffic does not run through IPsec tunnel anymore
After Fortigate upgrade v6.4 > v7.0.1 (or later) the S2S-dialup VPNs did not work anymore. Tunnel negotiation is successful and phase 1 and 2 get up. Traffic from spoke is routed into the tunnel, but is seems that the traffic is not received by the hub.
CheatSheet – FortiAnalyzer & FortiManager v7.0
We have created a combined CheatSheet for the FortiAnalyzer and FortiManager OS version 7.0. We have divided sections into FortiAnalyzer Logging, FortiAnalyzer Reporting and FortiManager to find the needed commands faster. CheatSheet FAZ FMGR 7.0 v1.2 We hope that this will contribute to quick solutions of existing problems.
CheatSheet – FortiOS v7.0
We have adapted our CheatSheet for FortiOS version 7.0 and added new commands. The Cheat Sheet is divided into different sections. Depending on the topic, you can find the necessary commands to display more information or find problems. We hope that this will contribute to quick solutions of existing problems.
Fortiguard DNS servers are enforcing EDNS policies
Some of you may have noticed that a Fortigate – configured to use the FortiGuard DNS Servers – is not resolving some DNS names anymore. Consequences can be that FQDN address objects can not be resolved or a configured mail server can not be used anymore.
Error message: “Unable to load FortiGuard DDNS server list”
For some reasons Fortigates are are not able to load the FortiGuard DDNS server list. Therefore you are not able to configure DynDNS on your Fortigate anymore. In the WebUI you will see following error message under Network > DNS > FortiGuard DDNS and you are not able to list…
FortiGate lots of “SSL user failed to logged in” events
Last Update: 31.07.2024 Since last week, we observed a lot of failed SSL-VPN login events on various FortiGate setups. (Edit: That was back in August of 2021 and the big “scanning” ended around two weeks after it has started. But messages are still shown from time to time, since scanning…
FortiWeb v6.4.0 and Let’s Encrypt
FortiWeb v6.4 starts to support the integration with Let’s Encrypt. This allows you to automatically generate server certificates alleviating the need to upload private certificates. The administration guide gives you some information on how to request those Let’s Encrypt certificates but in our opinion the configuration guidelines are not sufficient….
FortiGate PPPoE inside a VLAN
Last Update: 12.03.2026 Some providers (like init7.ch which already uses the Swisscom XGS-PON) do encapsulate their PPPoE traffic into a VLAN Tag (802.1Q or Q-Tagged). The reason for this is, that in the majority of the cases the provider is using a layer 2 network (last mile) of another provider,…
Windows update breaks SSO event log readers (FSSO, PAN UIA, WG ELM)
Microsoft has released KB5003646 on the 6th of June 2021. Part of this update is a security hardening measurement to align with recommendations as a conclusion out of CVE-2021-31958. As a known issue of this KB5003646, microsoft has noted in the release notes: “After installing this or later updates, apps…