Specifying the minimum allowed client version

Optionally configure each IBM® Sametime® Community Server in your deployment to require a minimum client version for user logins.

About this task

You might want to require that users to connect to your Sametime Community Server with a minimum version-level of the client; for example, to ensure that users have access to necessary features and security enhancements. You can configure the deployment to refuse logins from clients that are older than a specific version by adding the following parameters to the sametime.ini file on every Community Server in the deployment:
  • ST_MINIMAL_CLIENT_VERSION - Specifies the oldest version of the client that will be allowed to log in to the Community Server.
  • ST_FORCE_LOGOUT_OLD_CLIENT_VERSION - Specifies whether enforcement of theST_MINIMAL_CLIENT_VERSION parameter is enabled (set it to 1 to log out noncompliant users) or disabled (set it to 0 to allow noncompliant users to log in).
    Note: The VP_SECURITY_ALLOW_USER parameter was renamed to ST_FORCE_LOGOUT_OLD_CLIENT_VERSION in Sametime version 8.5. Both parameters are supported; however, if your sametime.ini file contains both parameters, VP_SECURITY_ALLOW_USER will be ignored.

All servers in the community must have the same ST_MINIMAL_CLIENT_VERSION and same ST_FORCE_LOGOUT_OLD_CLIENT_VERSION settings to ensure proper communications. These settings do not appear in the sametime.ini by default.

Procedure

Complete this procedure on every Sametime Community Server.
  1. Open the sametime.ini file in a text editor.

    By default the file is located in the Sametime Community Server installation folder; for example, in Windows™: C:\Program Files\ibm\Domino\.

  2. In the [Config] section, add the ST_MINIMAL_CLIENT_VERSION parameter and assign one of the values shown in Table 1.
    Table 1. Sametime Connect Client version codes
    Value Minimum Sametime client version allowed
    0 Allows logins for all clients regardless of version
    8000 8.0.0
    8010 8.0.1
    8020 8.0.2
    8500 8.5.0
    8510 8.5.1
    8520 8.5.2
    9000 9.0.0
  3. Next, add another line with the ST_FORCE_LOGOUT_OLD_CLIENT_VERSION parameter and assign it the value 1 to enable it.
  4. Save and close the file.
  5. Restart the server to allow the new sametime.ini settings to take effect.
  6. Remember to repeat this procedure on every Community Server.