access to document library from extranet?

[ecihewu]

Hi,

I followed the installation manual step-by-step and installed the ms
project server and sharepoint services. However, I encountered a
problem in accessing the document library. For example, the link to
"Upload Document " is directed to servername such as
http://testserver/sites/...

As I have to access from off-campus, I hope the above link will be
changed to http://testserver.xx.edu/sites/...

Does anyone know how to change the above link so that people can access
the documents from extranet? Thanks for your help.