Re: MS IIS 5.0 Access Violation on handling URL String

From: Thompson, Zach, CPG (zthompsonat_private)
Date: Mon Jan 31 2000 - 16:59:00 PST

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    Wouldn't the use of Microsoft Transaction Server allow the transaction to be
    recovered as soon as the IIS service is restarted? If you had a web
    application that you ran in a separate memory space from IIS, then if you
    crashed IIS, the transaction could possibly still be processed outside of
    the IIS service.
    
    If you are using Transaction Server, the application/process that is
    handling the request would be managed by a Transaction Processing
    Monitor(TPC) which is there for providing fault tolerance in situations like
    the one described below. As soon as the IIS service was restarted, it would
    be conceivable that the TPC could then hand the completed transaction back
    to the client.
    
    -Z
    
    -----Original Message-----
    From: Lark Lizerman [mailto:webmasterat_private]
    Sent: Saturday, January 15, 2000 10:14 PM
    To: BUGTRAQat_private
    Subject: Re: MS IIS 5.0 Access Violation on handling URL String
    
    Danger:
    The fact at this point is that it is possible to crash  IIS 5.0 and the
    process must be restarted what means data loss at all clients connected.
    On a CreditCard transaction / Stock Systems it would mean dramatic financial
    loss.
    The main danger is not, that a website with few hundred visitors will become
    unavailable for some seconds, but if it is a SSL System
    which handles transactions get's interrupted while datatransfer. Imagine you
    sell shares for 200.000$ and your order get's interrupted you may loose a
    _lot_ of money. Most transactionsystems are Unix but in the past more and
    more NT Systems have been used for this kind
    of business.
    
    greets
    Lark Lizerman
    



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