mp3, etc.) to Designated File Types to restrict them so that users could play files of allowed types.
Restrict media files: Add selected streaming file types (.avi. If so, users will not be able open those software and cannot play media locally. Restrict Software: Add Real Player, Flash Player, Media Player and their ActiveX control files to restricted list. If you would like to try Software Restriction Policies, you have two choices: 1. I agree with Ryan, considering you cannot control the Cisco PIX firewall directly, Software Restriction Policies is the best option for you. If I have misunderstood the problem, please don't hesitate to let me know.
According to your description, I understand that you would like to reduce or block streaming audio and video in a work environment by Group Policy. mp3, etc.) using software restriction policy. Moreover, you might be able to deploy with group policy (if it doesn't interfere with legitimate use) by blocking files by extension (.avi. The third option will be the most effective at blocking video/audio traffic and can be done with Cisco PIX: Although, blocking Flash would probably be the easiest/most effective, as most sites use it for audio/video, and probably doesn't serve much of a business function in most organizations. The second, could be done with group policy, but not an optimized solution (large hosts files or many restricted sites in Internet Explorer will slow machines down). With the first option, you can use group policy ( software restriction policy) to accomplish the task. Go full out with deep packet inspection.Therefore, you're only options to control that would be to: Streaming media servers can use: HTTP (80/8080) RTMP (1935) Macromedia Flash Media Server PNM/PNA (7070) RealAudio (older versions) RTSP:RTSPU/RTSPT (554) MMS:MMSU/MMST (1755) Microsoft Media Services You could attempt to block by port or protocol on the firewall, although HTTP streaming would still be available.
0 kommentar(er)
