The SCO Group's Web site has been knocked out of service by a denial of service (DoS) attack.
The attack began at 11:20 am GMT, yesterday, shutting down the company's main www.sco.com website, according to company spokesman, Blake Stowell. SCO was working on restoring service to the site, Stowell said. It was still down at the time of going to press.
SCO has raised the ire of the open source community by claiming that the Linux operating system contains software that violates SCO's intellectual property.
The company has warned Linux users not to run the operating system without first purchasing a license from SCO, and was on the verge of suing a major Linux user, Stowell said.
The company's website was hit by a DoS attack in May, two months after it launched a lawsuit against IBM for allegedly misappropriating SCO's Unix source code and contributing it to Linux.
A second DoS attack occurred in August, when SCO's site was disabled for several days.
The August attack was perpetrated by a "senior" member of the open source community, according to open source advocate. Eric Raymond.
SCO did not know the identity of yesterday's attacker or why the attack was launched, Stowell said.