yes it worked from both mu C drive and unix

TNS Ping Utility for IBM/AIX RISC System/6000: Version 8.1.7.1.0 - Production on 05-FEB-2003 09:22:43

(c) Copyright 1997 Oracle Corporation. All rights reserved.

Attempting to contact (ADDRESS=(PROTOCOL=TCP)(HOST=tracks)(PORT=1523))

OK (70 msec)
and I can even connect from sqlplus on prod to test...
using
connect username/password@test.