plugin-key.kdb missing

Context

I installed Connections, and it works. I configured the web server, generated and propagated the plugin, and at the time of copying the plug in key store file to web server key store directory, the button is greyed out.

The Websphere HTTP plugin

From The Enigma of WebSphere Application Server Plug-in

What are advantages of using webserver and plugin?
The plug-in provides work load management and failover capabilities by distributing requests evenly to multiple application servers and routing requests away from a failed application server.
Static content can be served by the Web server without doing a full round trip to the application server.
The Web server provides an additional hardware layer between the Web browser and the application server, thus strengthening the application server’s security.

Demystifying the IBM® Web ServerPlug-in

plugin-cfg.xml file is created by clicking the “Generate Plug-in” button on the web servers page of the WebSphere administrative console.

HTTP for SSL

 This is all good and useful information. But now more specifically, we go deeper into SSL.

This is a good guide :
Configuring SSL for WebSphere and IBM Http Server : part1

Configuring SSL for WebSphere and IBM Http Server, part2 : Restrict unused HTTP methods and Verbose HTTP headers

Configuring SSL for WebSphere and IBM Http Server, part-3 : Client Authentication and Ciphers

Configuring SSL for WebSphere and IBM Http Server, part-4 : Dmgr and Nodes

Quote from part 1:

This involves setting SSL for two different communications.
1. Between Browser and IBM http server [IHS]
2. Between IBM http server [IHS] and Websphere Application Server

We are working on 2. The distinction is important.

In my plugin-key.xml :

<Property Name="keyring" Value="c:\IBM\HTTPServer\Plugins\config\webserver1\plugin-key.kdb"/>
<Property Name="stashfile" Value="c:\IBM\HTTPServer\Plugins\config\webserver1\plugin-key.sth"/>

So the keystore should be ready and created, but navigating to the folder it is missing.

But I can see that in websphere, the folder for plugin is :

C:\IBM\HTTPServer\Plugin

And in reality should be :

C:\IBM\Websphere\Plugin

This error is due to the fact that HTTPServer is the default installation folder. So be careful of this when you configure the webserver in Connections 4.5

PLGC0063E

After rectifying (delete and recreating the web server with the good parameters), I can't propagate anymore with errors PLGC0063E and PLGC0049E

PLGC0062I: Le fichier de configuration du plug-in est transmis de C:\IBM\WebSphere\AppServer\profiles\Dmgr01\config\cells\SRVCONNECT1Cell01\nodes\SRVCONNECT1Node01\servers\webserver1\plugin-cfg.xml à c:\IBM\Websphere\Plugins\config\webserver1\plugin-cfg.xml sur l'ordinateur du serveur Web.PLGC0048I: La propagation du fichier de configuration du plug-in est terminée pour le serveur Web. SRVCONNECT1Cell01.SRVCONNECT1Node01.webserver1.PLGC0063E: La transmission du fichier de configuration du plug-in entre C:\IBM\WebSphere\AppServer\profiles\Dmgr01\config\cells\SRVCONNECT1Cell01\nodes\SRVCONNECT1Node01\servers\webserver1\plugin-cfg.xml et c:\IBM\Websphere\Plugins\config\webserver1\plugin-cfg.xml sur le serveur Web a échoué.PLGC0049E: La propagation du fichier de configuration du plug-in a échoué pour le serveur Web. SRVCONNECT1Cell01.SRVCONNECT1Node01.webserver1.

A technote seem to correspond : Plug-in propagation fails with PLGC0063E and PLGC0049E when copying to remote Web server
According to this technote : the message can be ignored if the propagation is successful.

Unfortunately both button are still greyed out.

Copying manually plugin-key.kdb

"Manage keys and certificates" link for plugin-key.kdb is broken in the WebSphere Application Server administrative console

I copied the plugin-key.kdb, plugin-key.sth and plugin-key.rdb from C:\IBM\WebSphere\Plugins\config\webserver1 to C:\IBM\WebSphere\AppServer\profiles\Dmgr01\config\cells\SRVCONNECT1Cell01\nodes\SRVCONNECT1Node01\servers\webserver1

Now the 2 buttons are available.