Linux to Linux NFS UID change
If I understand you correctly, then you want to map all request from client node to a specific UIG/GID on the server. For this you have to adjust your exports file as following:
/home/rdebXXX/test dev-www(rw,sync,no_subtree_check,anonuid=512,anongid=1003,all_squash)
The all_squash option tells server to map all requests to user nobody and the corresponding UID and GID you already have in the export options.