Client and server actions when a TCP/IP connection is opened

When a TCP/IP connection is opened, information is read on both the client side and server side.

The following information is read on the client side:
  • The INFORMIXSERVER environment variable.
  • The hosts file information (INFORMIXSQLHOSTS environment variable, $INFORMIXDIR/etc/sqlhosts file and services file information
  • Other environment variables
  • Resource files
The following information is read on the server side:
  • The DBSERVERNAME configuration parameter
  • The DBSERVERALIASES configuration parameter
  • Server environment variables and configuration parameters, including any NETTYPE configuration parameter setting that manages TCP/IP connections.

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