We have a Domino 9.0.1 Server hosted on Ubuntu 14.04 Server, which hosts several other http based Tasks, (Nginx, Couchdb, Confluence on Tomcat).

The Ubuntu Server has multiple IPs, all bind correctly to the different Tasks.

The Domino SMTP task binds correctly and is working well.

All http tasks (other than Domino) are proxied behind Nginx version 1.6x and all are working well, netstat shows no 0.0.0.0 bindings, no one is listening on 1.2.3.4:80 .

when I try to load http on the (Domino) server console it failes with

HTTP Server: Error - Unable to Bind 1.2.3.4, port 80, port in use or Bind To Host configuration specifies a duplicate IP address/host

a couple of times, may be 4 or 5 times then it loads without failure!

And: when it comes up, I see http is listening on 80 AND 443, but SSL Connections are not working, nor any error log!

It must be a kind of bad magic :-(

thanks in advance

Pitt