I just install an linux (centOS 5) with oracle 11g.
When I setup the firewall of an linux (centOS 5), I have an question.
My question is can I set the firewall only able to be access from some of ip through the port 1521 to linux (centOS 5)?
(e.g.) the port 1521 only accessable from 192.168.0.1,192.168.0.2,19
18.104.22.168 to my oracle server (centOS 5), all the others are denied, will it possible?