⇒Here I wrote how to configure a FortiGate with managed FortiSwitches as IGMP querier. It is a good solution if the multicast traffic has to pass the FortiGate. If the multicast…
If you need to configure an IGMP querier on managed FortiSwitches, you find nothing in the documentation. Once you know how it works, it is very simple. The interface of…
Fortigate firewalls do inspect the data stream. This is also true for DNS (Domain Name Service). Sometimes you will see the error: "Deny: DNS error" in the logs Having a…
On FortiGate firewalls you got the command: diag sniffer packet [interface] '[filter]' [verbose level] [count] [tsformat] Details you find ⇒here. If you just want to verify, if a packet passes the…
Computer environments without virtualisation are not possible anymore. Theoretically all problems in this are should be solved by now. There are is an exception: Running OpenBSD as a guest under…
Sometimes you need to document your firewall rules. To do this, I wrote a perl-script to create a CSV file. Importing CSV into a spreadsheet is a good way for…