Is it possible to forbidden using the same link more than once?
For example, I can get the m3u8 stream + protect link, and paste in on Microsoft Edge and it found. Can I forbidden it?
You can use pay-er-view to trak number of simultaneous connections from same IP or user ID: https://wmspanel.com/nimble/pay_per_view
Ok thank you, and it is possible that protect link expire in few seconds?
You can specify ppv sync interval as short as you want and deny clients after that. But if you want to show your client short video preview I'd recommend to use
1)dvr epg as described http://blog.wmspanel.com/2015/11/dvr-time-range-fragments-epg.html for live content
2)short preview clips for vod
this way you can provide exact preview time for your clients and sign links not taking this into account.
If you have more specific case please let us know via https://wmspanel.com/contact if you don't want to share your case on publish