RE: [IMail Forum] syn flood, Imail and service providers.

[Dave Marchette]

Thanks for the response.

Hardening is great to do in any case but specifically if you don't have a firewall and 
rely on the OS to thwart a syn flood.  But the other half of the issue is link 
saturation.  The problem occurs before the firewall or OS is even involved (though 
without a firewall, or OS hardening you mention, it also becomes an application level 
DOS as well).  These are definitely hybrid attacks, or at least have two intended 
results:  bandwidth\border router saturation and app level(Imail, IIS, etc) attack.  
     

-----Original Message-----
From: Michael Thomas [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 20, 2003 5:26 PM
To: [EMAIL PROTECTED]
Subject: Re: [IMail Forum] syn flood, Imail and service providers. 


See this page:
http://support.microsoft.com/default.aspx?scid=KB;en-us;324270&;

It says it is for .NET, but applies to Win2K.

See this section on the page: TCP/IP Registry Values That Harden the TCP/IP
Stack

http://support.microsoft.com/default.aspx?scid=KB;en-us;324270&#2


Mike









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