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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Did Wanadoo, French ISP, block access to SCO?
On Sun, 01 Feb 2004 20:00:40 -0200, "Rubens Kuhl Jr." <[email protected]> said: > > And by blackholing that IP they've also blackholed www.caldera.com, which is > currently not a DDoS target but is also not respondig to requests. Umm,, I'll bite. If www.sco.com and www.caldera.com are on the same IP, how do you create a DDoS that wouldn't take out the Caldera site as well? A sheer-traffic DDoS will hurt both. A synflood will hurt both. The webserver that's listening on port 80 doesn't know which site is being connected to until it actually reads in the HTTP/1.1 headers and looks at the Host: tag - and if there's enough things arriving with 'Host: www.sco.com', it will require some *very* creative filtering/limiting to keep one website working while the other is down.... Attachment:
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