Search orders used in the z/OS UNIX environment

This information describes the search orders used in the z/OS® UNIX environment for the different file types shown in Table 1. The z/OS UNIX socket functions use various types of TCP/IP data sets and files. They include:

The particular file or table chosen can be either an MVS™ data set or z/OS UNIX file, depending on the resolver configuration settings and the presence of given files on the system.

Note: A program's first resolver service request initializes the resolver definitions that will be used for all resolver requests. For long running programs, the definitions can be modified by use of the MODIFY REFRESH operator command. For command usage and syntax, see z/OS Communications Server: IP System Administrator's Commands.