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I have a vps with a provider. It has 2 interfaces eth0 and eth0:1, each with one ip. One ip has normal web rules. The other one I want to restrict to only accept traffic to port 5001-5999
No that would be easy. I want to almost lock down the eth0:1 to only accept traffic from a few ports. The other interface has normal rules for a webserver
to
parameter for this. The difficulty is that most rules will have to specify the address.