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FireBrick Firewall - Steam Client: Difference between revisions

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=Technical Notes=
 
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.
 
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
*media4.steampowered.com = Akamai
 
Running steam will download a small file from client-download.steampowered.com containing a list of files with SHA-1 checksum and size in bytes to check if steam is up to date.:
 
*client-download.steampowered.com
If steam is outdated, it will need to download the updated files by randomly selecting one of the CDN hosts and that host will be used to serve the files.
 
This file contains a list of files with SHA-1 checksums and size in bytes to check if steam is up to date. If steam is outdated, it will need to download the updated files by randomly selecting one of the CDN hosts and that host will be used to serve the files.
 
==Origin Server==
 
The origin server is where each CDN will pull the files from. The origin server hashostnames a hostname of cdn-01-origin.steampowered.com or cdn-01.steampowered.com.are:
 
*cdn-01-origin.steampowered.com
*cdn-01.steampowered.com
 
==Steam Cloud==
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