DIIOPIORHOST

🛠️
Parameter: DIIOPIORHOST
Short description: FQDN that the DIIOP task publishes to clients in the IOR (Interoperable Object Reference) – important in NAT / reverse-proxy environments.

Profile

Parameter
DIIOPIORHOST
Category
HTTP / Web
Component
Server
Available since
9.0.1
Supported versions
9.0.1, 10.0, 11.0, 12.0, 14.0, 14.5, 14.5.1
GUI equivalent
Server document
Possible values
fully qualified host name (FQDN), e.g. domino.example.com

Description

The DIIOP task (Domino IIOP) creates a list of IORs at startup, which clients (CORBA, Java toolkit) use to connect to the server. By default, Domino writes the locally determined host name or the server's IP into the IOR. In environments with NAT, reverse proxies, or multiple network interfaces, this address is often unreachable from the client's point of view. DIIOPIORHOST explicitly overrides the FQDN so that clients receive a valid, external address.

Example configuration

DIIOPIORHOST=domino.example.com

Notes & pitfalls

  • Takes effect only after restart task diiop.
  • The specified FQDN must be resolvable via DNS by all clients and reachable via TCP (ports 63148/63149 by default).
  • In cluster or multi-server setups, each server must set its own external FQDN – no cluster VIP.
  • If DIIOP is not used (which is today's default case), the task can remain disabled; in that case this parameter is irrelevant.