Modify the default file transfer filter in Lync Server 2013
Topic Last Modified: 2012-11-01
Lync Server 2013 provides a global file transfer filter that blocks specific types of files during the following file-related activities within your Lync Server 2013 deployment:
File transfer requests during instant messaging (IM) conversations
File uploads and downloads while using the handout feature in the Office Live Meeting 2007 client
Multimedia playback during conferences
Depending on the types of files you want to block or allow, you can use Lync Server Control Panel to modify the global filter. For details about file transfer filtering, see Configuring file transfer and URL filtering for instant messaging (IM) in Lync Server 2013.
To modify the default file transfer filter
From a user account that is assigned to the CsUserAdministrator role or the CsAdministrator role, log on to any computer in your internal deployment.
Open a browser window, and then enter the Admin URL to open the Lync Server Control Panel. For details about the different methods you can use to start Lync Server Control Panel, see Open Lync Server 2013 administrative tools.
In the left navigation bar, click IM and Presence and then click File Filter.
On the File Filter page, double-click the Global filter.
In Edit File Filter, select the Enable file filter check box.
In the File transfer drop-down list box, click Block All or Block specific file types.
If you clicked Block All, skip to step 9.
If you clicked Block specific file types, do the following:
Click Select to modify the default list of file type extensions that you want to block.
In Select File Type, select the file types that you want to block or allow by adding or removing their extensions from the categories under File type extensions.
If you do not see the extension for a file type that you want to block, type the extension in the text box under Add file type extensions to the list, and then click Add.
Click OK.
Click Commit.