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Over the last few posts I’ve built a firewall and routed traffic through it – but does it work?
The routing part is easy enough to demonstrate with a simple trace route:
At the moment the firewall is set to simply allow any traffic through, so the next logical step is to block something and prove that it’s doing it’s job.
First up, enable logging in Zentyal:
Then, configure a rule to block ping from the management VM to the DMZ web VM:
Send some ping traffic its way (it should fail):
Finally, verify in the logs: