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FireBrick Firewall - Steam Client: Difference between revisions

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This firewall limits both inbound and outbound traffic to the steam client.
This firewall allows both inbound and outbound traffic to the steam client, all other traffic is blocked.


=Static DNS=


Static DNS keeps the IP addresses used the same as the ones used in the firewall:
Static DNS keeps the IP addresses used the same as the ones used in the firewall:
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</dns>
</dns>
</syntaxhighlight>
</syntaxhighlight>


=Firewall=


Outbound Rules - Change the MAC address in the source-mac= element to your own:
Outbound Rules - Change the MAC address in the source-mac= element to your own:
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</rule-set>
</rule-set>
</syntaxhighlight>
</syntaxhighlight>



=Technical Notes=
=Technical Notes=
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Steam used to have a huge amount of servers (some from Limelight CDN) located around the world and older versions of the software used an inefficient method to connect users to the servers.
Steam used to have a huge amount of servers (some from Limelight CDN) located around the world and older versions of the software used an inefficient method to connect users to the servers.


Steam has made a big improvement on the game delivery system by using 3 different high performing CDN companies, Akamai, Highwinds and Level 3 all at the same time.
Steam has made a big improvement on the game delivery system by using 3 different high performing CDN companies, Akamai, Highwinds and Level 3.


*media.steampowered.com = Akamai
*media.steampowered.com = Akamai
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==Origin Server==
==Origin Server==


The origin server is where the CDN will pull the files from and serve to users. The origin server has a hostname of cdn-01-origin.steampowered.com or cdn-01.steampowered.com, and the hostname will resolve to an IP address of 208.64.200.30.
The origin server is where each CDN will pull the files from. The origin server has a hostname of cdn-01-origin.steampowered.com or cdn-01.steampowered.com.

<syntaxhighlight>
<host name="media.steampowered.com" ip="208.64.200.30"/>
<host name="media2.steampowered.com" ip="208.64.200.30"/>
<host name="media3.steampowered.com" ip="208.64.200.30"/>
<host name="media4.steampowered.com" ip="208.64.200.30"/>
</syntaxhighlight>


==Steam Cloud==
==Steam Cloud==