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MultiQ Digital Signage – DSMS 3 User’s Manual Ver. 2, 2010-06-08
145
Appendix 8 – How to secure your media player
There are several ways to secure the media players from intrusion. The first protection is the fact that it
is the media player that initiates all communication with the digital signage management server. This
also applies in a system where there are several media players that communicate internally within a local
network. In such applications a gateway router with a built-in firewall is used and all communication
across the Internet is based on media players making requests from the inside of the firewall towards
the digital signage management server.
If you use a media player that is not located behind a firewall you can still protect it by disabling the
built-in web server from accepting any communication from being initiated from the outside. This is done
by enabling the web server lock that is shown in figure 75. Even if this feature is used the media player
can still reach itself (local host) for local interactivity using the 127.0.0.1 address.
To prevent user of your media monitors to reach unwanted websites you can use the “Whitelist” feature
to specify what web addresses are allowed.