The simplest way to find the IP address for a particular hostname is with the ping command. In Windows, open a command prompt as follows:
- Click on the Start menu
- Click Run...
- Type cmd then click on the OK button.
- Type ping domainname.com. Replace "domainname.com" with your actual domain name.
- You should get an output that looks like this:
Pinging dns1.speedingbits.com [188.8.131.52] with 32 bytes of data:
Reply from 184.108.40.206: bytes=32 time=1ms TTL=64 (et cetera).
In this case, the IP address is 220.127.116.11, though yours will be different.
To ping in the Mac OS X Environment:
Double-click on the Hard Drive icon > Applications folder > Utilities folder > Network Utility program