Thread: The preferences.dat

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  1. #11  
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    Quote Originally Posted by Graham View Post
    random.dat contains a 24 byte unique ID, I think Jagex use this to help track players/computers even if their IP changes or if the IP is shared due to NAT.

    (The older uid.dat file was similar but only 4 bytes long, so not universally unique.)

    I don't know about preferences2.
    Wow, okay. Do you know how this UUID is generated? I assume computer data from what I saw them write before the login protocol. And what tool did you use to read the file? or did you find it in the client?
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  2. #12  
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    Quote Originally Posted by Ynneh View Post
    Wow, okay. Do you know how this UUID is generated?
    The server is in charge of generating it. There's a packet the server can use to change it, and the client sends it to the server on every login.

    Quote Originally Posted by Ynneh View Post
    I assume computer data from what I saw them write before the login protocol.
    I think it's probably a random number but given the server generates it it is tricky to be sure (https://dilbert.com/strip/2001-10-25).

    Quote Originally Posted by Ynneh View Post
    And what tool did you use to read the file?
    The file contains exactly 24 bytes, you could read it with a hex editor (a normal text editor probably won't be happy because it's binary).
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