Informix Error -4996: Unknown host name or port number

Reasons / Common Causes

-4996 fires when the web-service publisher's host name or port number can't be resolved — per the official guidance, this covers a checklist of three configuration/runtime requirements.

1. FGLD_HOSTNAME and FGLD_PORTNUMBER environment variables aren't set, per the official guidance — the first named requirement.
2. fgld isn't running on the port specified by FGLD_PORTNUMBER, per the official guidance — the second named requirement.
3. Axis2C isn't running on the same terminal where fgld is running, per the official guidance — the third named requirement.

Solutions / Resolution

1. Set the FGLD_HOSTNAME and FGLD_PORTNUMBER environment variables, per the official guidance.
2. Run fgld on the FGLD_PORTNUMBER specified, per the official guidance.
3. Run Axis2C on the same terminal where fgld is running, per the official guidance.

Examples

Checking the fgld environment variables

$ echo $FGLD_HOSTNAME $FGLD_PORTNUMBER

Diagnostic Checks

1. Check FGLD_HOSTNAME/FGLD_PORTNUMBER, confirm fgld is running on that port, and confirm Axis2C is running on the same terminal as fgld.

Related Errors / Related Topics

• -4997 — "Port number (%s) must be in the range 1024 - 65535." A related fgld configuration error, about the port number's validity rather than host/port resolution.
• -4986 — "Communication between fgld daemon and application server was closed." A related fgld connectivity error, about a connection being interrupted after being established, rather than host/port resolution failing outright.

The web-service publisher's host name or port number couldn't be resolved — check FGLD_HOSTNAME/FGLD_PORTNUMBER, and confirm fgld and Axis2C are running correctly.