Limiting port access

Hi everybody,

I'm trying to limit port access as I have two public IPs on my node, so I'd like to leave port 80 and 22 open on 12.34.56.78 (public IP, primary server address), but deny everything else, and only allow 443, 943, and 1194 on 98.76.54.32 (public IP, secondary server address). Does this make sense? I don't want somebody using the primary server address to access our VPN, which is utilizing the secondary IP.

Thanks for your assistance.

-Tyler