This issue just came up with me. I had an issue with the server I was on, and was asked to 'Run command prompt; tracert *domain*' by Andrew. I did not know how to do this, seeing as I'm not working on Windows, and haven't been for a while.
Any way, found out how to do it on the Mac - incase any of you come into the same problem here are the step-by-steps.
1. Click Macintosh HD
2. Click Applications
3. Click Utilities
4. Click Network Utility
5. Select the Traceroute Tab
6. Enter the IP address or Web site address
FYI; Andrew took care of the problem very swiftly. Thanks!