machineKey on Web Farm?
<p>some articles say one thing and some other...
i need to fix things <strong>in my head</strong> :</p>

<p><strong>1)</strong> if im using <strong>StateServer</strong> in my web farm i need to set the same MachineKey ... <strong>why</strong> ?
is it for the <strong>viewState issue</strong> or for <strong>session issue</strong> ?
the session issue has been <strong>treated</strong> by StateServer Solution...
so i dont understand...
or is it for the viewState ...?</p>

<p><strong>2)</strong> Is this also apply to Sql session Server ?</p>

<p><strong>3)</strong> or the MachineKey issue is only for encrypted ViewState  situations ?( the MAC...) ??</p>

<p><strong>im confused !</strong></p>
