enable port on two IP

[raczkowski1]

Hi
I want enable listening the same port (ex. 53) on two different IPs, basic IP and additional witch set in panel ispCP.

Thanks

[kilburn]

bind does this by default...

[raczkowski1]

I know that but when I do "nmap ip1" I see all services but when I use "nmap ip2" I don't see any open port even get info that 0 hosts up.
I think that iptables rules let services only on basic IP but which script of ispCP generate firewall rules??

Thanks

[kilburn]

ispcp only uses firewall rules to *count* traffic, not to block/unblock anything. Therefore, if your host seems down, it's some problem with your network configuration and has nothing to do with ispcp...

[raczkowski1]

my second IP config is correct. nmap I do it on the same host so if I check by nmap localhost, ip1 or ip2 this is the same server. I'm surprised why all services working on only one IP.