ISPConfig DNS/IP problem

[radof]

Hi,

First off, i would like to thank Falko for the excellent guides and ISPConfig.

My installation of ISPConfig went fine, however I am a little confused in creating a New Site.

From the ISP Manager I try to create a site, but I dont know what IP to give in the "IP Address" (eth0 = 192.168.1.20 OR External one ?) and whether or not to check "DNS" and "DNS-MX".

And what should be there for Co-Domains ? Can I leave the Hostname blank to have a working http://site.com.

I did a few tests and when i try to open "www.mysite.com" it waits for too long and then timesout. Sometimes It connected well but the webpage it returned was wrong "ISPConfig default page". So i thought i am confused with IP addresses and maybe some problem with Virtual Hosting.

Any help will be appreciated, Thanks.

Regards.
radof.