Setup guide

IBM Lotus Sametime 7.5 Release Notes Installation, migration, upgrade, and configuration

Clustered Sametime communities should have single host name

When configuring a Sametime server cluster with multiple nodes, it is important to front-end the cluster or

"community" with a single virtual host or DNS name. The ST 7.5 client makes a direct connection

between a "community" and host name as entered in the client connectivity settings. This means that if a

user enters "Node A" as the host name and then changes it to "Node B", they will not see users online,

because users of "Node A" are not recognized as belonging to "Node B".

This restriction will be relaxed in future releases, but in order to avoid such issues it is important to

front-end the cluster with an IP sprayer or other mechanism that provides a single virtual host name to the

community. This is a good practice, as it provides for added administration flexibility for replacing nodes

without affecting end user clients, and without coupling the clients to specific machine host names.

Conversion Services on Windows Sametime servers

Sametime Conversion Services is a feature that takes files of various formats (slides, images, documents,

etc.) and provides a bitmap rendering, so they can be shared in a meeting as slides. Sametime

Conversion Services has been enhanced for Sametime 7.5 to use new conversion technologies that

provide more faithful rendering of slides. When you install Sametime 7.5 on Windows, Sametime

Conversion Services is always installed on the server as a Domino servlet. This is a change from previous

releases that administrators of Windows Sametime servers need to be aware of in the following situations:

Windows Sametime server configured for SSL

If you have an existing Sametime server running on Windows that is configured to encrypt Web

browser connections with SSL, you must manually update a file on your Sametime server after

upgrading to Sametime 7.5. After upgrading your Sametime server, you must modify the

conversion server configuration so that Sametime can continue to access the conversion servlet.

If you do not update the conversion server configuration, meeting file attachments will not be

converted for display in the meeting room as slides.

You must make similar changes to the conversion server configuration if you decide to configure

your Sametime 7.5 server for SSL at a later time.

For detailed instructions, see “Securing Conversion Services with SSL” in the Sametime 7.5

Administrator's Guide. Complete the step that describes how to update the

stconvservices .properties file. On Windows, this file is located in the Sametime binary directory

(usually C:\lotus\domino).

Reconfiguring Domino HTTP on Sametime server

When you install Sametime 7.5, the Sametime server is automatically configured so that it can

properly access the conversion servlet. If you decide to reconfigure Domino HTTP on your

Sametime 7.5 server to use a different IP address or port, you must update the

stconvservices .properties file with the correct IP address and port so that the Sametime server

can continue to access the conversion servlet. On Windows, this file is located in the Sametime

binary directory (usually C:\lotus\domino).