By Robert Lemos, 16 December 2003 09:00
NEWS More internet attacks cut off access to the SCO Group's servers this past weekend and again on Monday, as the Unix software company struggled to stop the hackers.
After the attacks largely abated on Friday, they restarted on Saturday morning until late Sunday night, said Blake Stowell, a spokesman for SCO. The deluge of data, known as a denial-of-service attack, then restarted again on Monday morning, and the company's website continues to be inaccessible.
"At this point, we are continuing to use the same tactics: keeping in contact with our internet service provider and the US Secret Service," Stowell said.
The website and file servers have been inaccessible for five of the last seven days. If such attacks continue, the company could find itself unable to communicate with customers.
Groklaw, a legal analysis site that has been critical of SCO, cast doubt on the company's claims that it can't do anything about the attack. Such attacks can usually be largely mitigated by buying up more bandwidth and connecting through internet service providers that have special technology aimed to defeat the assaults.
Security experts said previous attacks in May and August should have put adequate pressure on the company to take steps to protect its connection to the internet.
David Moore, assistant director and researcher at the Cooperative Association for Internet Data Analysis (CAIDA) and an expert on denial-of-service attacks, said: "There are definitely things out there that they can buy or services that solve this problem. It is just a question of how important your website is to you and how much you are willing to spend."
CAIDA studied last week's attacks and found that SCO's servers had responded to more than 700 million requests in fewer than 32 hours. The requests took up computing resources and consumed internet bandwidth as part of the denial-of-service attempt.
SCO has attracted the ire of the open-source community for its pursuit of a legal case that, if successful, would essentially give SCO rights to important parts of the Linux source code.
Most Linux users don't seem to be taking SCO's claims seriously, however, and the case shows little sign of slowing the growth of the operating system. A recent report market researcher IDC published found that sales of Linux servers grew almost 50 per cent in the third quarter of 2003, compared with the same period a year earlier.
Robert Lemos writes for CNET News.com
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