B.net Index Server 2 |link| [ REAL ✦ ]
In the simplest terms, an index server acts as a directory or a switchboard for an online network. For Classic Battle.net, the index server was responsible for verifying software keys, authenticating user logins, hosting public chat lobbies, and—most importantly—aggregating lists of active game sessions. When a player hosted a game of Warcraft II or StarCraft: Brood War , their computer broadcasted that session's availability to the index server, which then relayed that information to other players scanning for matches.
: If a game file becomes corrupt, the Battle.net client does not need to re-download the entire game. It validates the local hashes against the Index Server entries and replaces only the corrupted blocks. B.net Index Server 2
: The actual host where the game logic runs. In the simplest terms, an index server acts