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Status Already Exists
Workspace Sametime
Categories Chat
Created by Guest
Created on Jul 20, 2023

RELATED IDEAS

Limit number of group chat participants

I need to prevent users from starting a mass chat through a HCL Notes group (LDAP) with many users, such as e.g. Marketing-ALL group with over a hundred users. With the new Sametime Server (we megrated from 8.5 to 12.0.1) this is an huge issue. Somehow the new installation needs significant more performance on the HCL Notes Build-In client than the old one which leads during a mass invite almost to a DDOS attack for the clients.

My idea is to reduce the maximum number of participants in a chat through a setting on the sametime or via managed settings for the build in client.

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  • Admin
    Trevor Tallackson
    Reply
    |     Dec 14, 2023

    thanks Casey for the helpful information!

  • Guest
    Reply
    |     Aug 4, 2023

    Please open a support case so that we can properly assist you. You can configure your environment to limit the size of groups that can be accessed by Sametime, which should effectively solve this problem. There are a couple of ways:

    From the server:

    • a configuration parameter ST_DB_LDAP_MAX_RESULTS (but should be used with caution, depending on your environment could break something else)

    • Another option is by modifying the group search filter to only return groups that are smaller than a certain size. This may impact your policies if you use large groups in policies.

    From the clients:

    Additionally we have client settings that you can configure and push to users via policy to alert or prevent them if they are starting a group chat with more than X number of users.

    To automatically configure end user client preferences use the managed-settings.xml and define it in the Sametime policy.

    The settings are you are interested in are documented here: https://help.hcltechsw.com/sametime/1201/admin/config_client_contact_list_pref.html

    Have a look at these:

    confirmMultiPartyChatInvitationToMoreThanX -- this is a warning that you are about to start a chat with more than x number of users

    confirmMultiPartyChatInvitationToMoreThanXNumber -- prevents the user from starting a chat with more than x number of users

    maxPublicGroupSize -- If a public group has more than X number of users, then it is not allowed to be added to the contact list.

    excludedPublicGroups - a list of public groups users are not allowed to use for Sametime.

    You may also be interested in our best practices guide if you have a large directory https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0081763

    Please open a support case if you need assistance, we are happy to help.

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