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block Games on LAN

Some of the clients in my DC are playing games. Different users having different games so it is very hard for me to block using there setup files

Is it possible to block them using computer level policy or through windows firewall .More over I have some other company application need to be run on there pc
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samithsukumar
Asked:
samithsukumar
1 Solution
 
Lukasz ChmielewskiCommented:
you would need to know what ports do the games use for connecting through the lan, that would be the first step to block them using policies or firewall
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samithsukumarAuthor Commented:
how can find the port been used by the game
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Lukasz ChmielewskiCommented:
i'd recommend wireshark
http://www.wireshark.org/
to watch the network activity bound to the applications
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samithsukumarAuthor Commented:
My router is Netscreen NS5GT +ADSL is anything which i can do from the router level to block this Games.
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Kamran ArshadCommented:
Hi,

Use a port scanner like NMAP to check which ports are open in your network and then you can separate the ports which are required and then other ports like GamePorts, P2P etc.

www.nmap.org
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FrankB715Commented:
1) You could block the games on the users computer in windows firewall, and then maybe set the user policy so that the user could not access the firewall settings. This could be a daunting task depending on how many users you have on the network. It would be much easier if you had a proxy server which all your internet traffic ran through. Then you could set the firewall settings for the entire group, and not have to worry about anyone changing settings back.
2) You can also block (filter) ip's and ports in most router setups. Here is a list of just about every game that accesses the internet. http://portforward.com/cports.htm Just look up the games that they are playing in the list and add those ports and or the ip that the game accesses to the blocked list.
3) You can also set up your router to use openDNS. It's free and once you get an account you go into the setup and can block all kinds of sites like porn, p2p, games, etc. that you don't want users accessing. This would not definately block the games your users are accessing, only those included in the openDNS block list, but there are many other advantages to using it. http://www.opendns.com
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