Server

The servers in Iris are a Forerunner record that provided information into the history of the Forerunners, primarily the Forerunner-Flood war. The servers are the primary start of the narrative in the Halo 3 Terminal story line.

Access
To unlock the server 100 keys had to be entered. Once 100 keys were entered the server opened. Those who were in that 100 got rewards.

Server 1 rewards

 * A Shirt based on the server.
 * A copy of the Society of the Ancients flier.
 * A printed copy of Halo 3: The Cradle of Life.
 * A slip of paper with a Forerunner symbol on it for a Iris glyph gamerpic.

Description
Once the page/server is loaded, there is a floating and rotating thing, with several Forerunner glyphs files, while one lead to a video that could be played.

Trivia

 * 7 years later, on June 28, 2014, a 343 Industries employee under the guise of Catalog revealed the Boomerang Nebula mentioned in server 4 is actually a Burn home to multiple star roads and "classis malum" (Latin for "evil group/class/fleet", supposedly referring to Flood-controlled fleets).