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   <H1>[Nel] A small document for your consumption</H1>
    <B>Thierry Mallard</B> 
    <A HREF="mailto:thierry%40mallard.com"
       TITLE="[Nel] A small document for your consumption">thierry@mallard.com</A><BR>
    <I>Mon, 16 Apr 2001 21:59:43 +0200</I>
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<PRE>On Fri, Apr 13, 2001 at 11:34:53AM +0200, Vincent Archer wrote:
&gt;<i> Steps
</I>&gt;<i> -----
</I>&gt;<i> 
</I>&gt;<i> 1: The client initiates a connection to the login service, using the supplied
</I>&gt;<i>    IP and port from the configuration file, with the help of the DNS for IP
</I>&gt;<i>    resolution.
</I>&gt;<i> 
</I>&gt;<i>    Note: DNS spoofing or configuration file modification can lead to LS
</I>&gt;<i>    spoofing and hacking of the login/password information of the client.
</I>&gt;<i>    However, DNS is needed for flexibility of the login service location.
</I>
Possibly this can be partially avoided by providing your own DN Server's IP ?
(dunno precisly how the client would connect to it, but still...)

&gt;<i> 2: The client submits its login, password, and system capabilities.
</I>
In plaintext ?

&gt;<i> 3: The LS checks the login/password validity, and builds the list of all
</I>&gt;<i>    available worlds according to account information and current system
</I>&gt;<i>    settings. This list contains world names and the IP for the WS of that
</I>&gt;<i>    world.
</I>
Maybe the use of challenges would be more secure, but i'm not a specialist in
this matter :-(

&gt;<i> 4: The client selects the world it wants to log on, and submits the IP address
</I>&gt;<i>    of its world service to the LS.
</I>
Would it be good if the client could select several worlds ?
(then the negociation following could use this to get a good WS)

&gt;<i> [...]
</I>&gt;<i> 10: The client disconnects from the LS.
</I>&gt;<i> 
</I>&gt;<i> 11: The client initiates a connection to the indicated FES.
</I>
I wonder if it couldn't be more interesting if the client disconnects from LS
_after_ having initiated the connection to the FES. Then, if something goes
wrong, the client could goto 4 directly.


Best regards,

-- 
Thierry Mallard              | <A HREF="http://vawis.net">http://vawis.net</A>
GnuPG key on wwwkeys.pgp.net | <A HREF="http://erlang-fr.org">http://erlang-fr.org</A> (new)
key 0xA3D021CB               | <A HREF="http://worldforge.org">http://worldforge.org</A>


</pre>



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