How Lync Server 2013 Limits File Transfers

If you want to restrict the transfer of internal user-specific files in Lync Server 2013, we can use file filters to restrict the transfer of specific suffix files, or directly restrict all users from transferring files. And restrict file transfer capabilities for specific users. Then, as organizations pay more and more attention to security and confidentiality requirements become higher and higher, it is necessary to ensure that corporate information cannot be leaked, and it is inevitable that Lync instant chat tools cannot be used to transmit data to the outside of the enterprise. At this time, how do we limit the file transfer function between the internal and external users, enterprise users and federated users in Lync even messages? In response to the above actual needs, we can limit the internal information security of the internal and external users, as well as between enterprise users and federated users, in the Lync Edge Server. Please refer to the text for specific file transfer function restrictions. Transferring file restrictions inside and outside the enterprise, enterprise users, and federated users 1. On the Lync front-end server, open the Lync control panel, navigate to “IM and Status", click File Filter, select New à Pool Configuration; 2 In the New Wizard, select the edge pool, as shown below, make sure the value in the name is EdgeServer:Edgename (fill in the actual edge server), check the "Enable file filter", and select "Don't block all" in the file transfer. , click Submit; Note: You can also enter the command on the command line to configure: new-csfiletransferfilterconfiguration –identity service:edgename (replace the actual name) –action blockall –enabled $true3. At this time, internal and external users, as well as internal The peer-to-peer file will not be transmitted between the user and the federated user. Note: The federated users interact through the Lync edge server. Therefore, after the Lync edge server restricts the file transfer restriction, the enterprise user and the federated user cannot perform file transfer. In addition, this feature is a global feature configuration and cannot be applied to specific users on the Edge Server. 4. After the above transfer file is restricted, the file upload and download can still be performed when the user performs the conference. In this case, if you want to restrict, you need to limit the file transfer in the conference. Note: After the file transfer function is restricted in the conference, Users cannot transfer files while they are in an internal meeting. 5. In the "Conferences" menu of the Control Panel, create a new user meeting policy > test strategy & rdquo; in the test strategy, uncheck & rdquo; allow the Alliance and anonymous participants to download content and allow participants to transmit File”;6. Change the user's meeting policy to "test strategy", which limits the ability to transfer files between lync internal and external, internal, and federated users; Note: Meetings that can be used for existing users To set the policy, at the Lync powershell command prompt, type: Set-CsConferencingPolicy –identity conference policy name –EnableFileTransfer $false. In actual use, replace the conference policy name with the policy name that the user actually uses. If you want to create a new meeting strategy, follow steps 5-7 to create it.