Question on Multiple Residency and I-STAR, I-NET

Hi Informix gurus, I need your help. We have Informix-Online V5.00, Informix-Star V5.00, Informix-Inet V5.02 on IBM/AIX 3.2 and Informix-Inet V5.01 on Window-3.1 On a single IBM/AIX server, I created multiple database-server, or Multiple Residency, and started Multiple sqlexecd Daemons, each has different "servicename" correspondent to each database-server. From I-Net for Window-3.1, I can access different database-server by given the "servicename". However on other IBM/AIX client, using either I-STAR or I-Net Relay-mode, I have to change sqlexec's port number on client's /etc/services file in order to access different database-server on the Server machine. Also "sqlexec" can not be renamed on client's /etc/services file. My questions are: a). Do I have to create Multiple sqlexecd Daemons for multiple database-server on a single UNIX box? Or there are other ways? b). On the UNIX client, using I-Net or I-Star, how can I specify different "servicename" on the Server without changing port number in /etc/services file on the client? Thanks, John Ru e-mail: john@magna.com