Depending on your DNS provider, there are 2 options:
1. Setup DNS forward.
Anyone who goes to http://projects.xxxx.com will be automatically
forwarded to http://xxxx.go.easyprojects.net
2. Setup DNS masking.
Anyone who goes to http://projects.yourEP.com will always see
the http://projects.yourEP.com url and nothing else.
Please keep in mind that it won't work with Internet Explorer.