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Informix Error -41001

-41001 The INFORMIX.INI file does not have a hostname or has a format error.

Check the INFORMIX.INI file. If you did not define a host name variable in the InetLogin structure, the [INET_CONNECTION] section must have a host name. The host name must be defined in the [INET_CONNECTION] section with the following format:

host=hostname

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-41001 fires when INFORMIX.INI's [INET_CONNECTION] section is missing a host name, or the InetLogin structure didn't define one in code — per the official guidance.

  1. No host name variable defined in the InetLogin structure, and none in [INET_CONNECTION] either, per the official guidance — the direct, only cause.
Solutions / Resolution
  1. Define the host name in [INET_CONNECTION] using the format host=hostname, per the official guidance.
Examples
The required host-name format
[INET_CONNECTION]
host=myserver
Diagnostic Checks
  1. Check [INET_CONNECTION] for a host=hostname line, and add or correct it if missing or malformed.
Related Errors / Related Topics
  • -41000 — "Error in reading the [INET_CONNECTION] section of the INFORMIX.INI file." A related INFORMIX.INI configuration error, on the section heading itself rather than its host-name entry.
  • -41002 — "The INFORMIX.INI file does not have a username or has a format error." The equivalent error for the user-name entry.
  • -41004 — "The INFORMIX.INI file does not have a protocolname or has a format error." The equivalent error for the protocol-name entry.

INFORMIX.INI's [INET_CONNECTION] section is missing a host name — add host=hostname.