Level 3 Certification Ensures High-Performance 64-Bit Linux OS on SGI Servers Meets Global Government and Military Security Standards

MOUNTAIN VIEW, Calif. (Oct. 31, 2005)—Silicon Graphics (NYSE: SGI) today announced that Novell's SUSE Linux Enterprise Server 9 has been certified on SGI® Altix® servers and supercomputers to meet security criteria required by the US Department of Defense and governments throughout the world.

SUSE Linux Enterprise Server 9 on Altix® systems has attained Evaluation Assurance Level 3+ (EAL3+) as determined by the Common Criteria for Information Security Evaluation. SUSE Linux Enterprise Server 9 was evaluated under full compliance with the Controlled Access Protection Profile (CAPP) on an SGI Altix 3700 Bx2 supercomputer and an SGI Altix 350 mid-range server.

The heightened CAPP/EAL3+ certification means that Novell's scalable, 64-bit Linux® operating environment running on SGI Altix meets a broad range of IT security standards that government and military agencies require of technology solutions they purchase. These include identification and authentication, auditing, security management and cryptography.

"Novell is pleased to team with Silicon Graphics as they add to the growing list of hardware vendors who are choosing to certify their secure solutions on SUSE Linux," said Ed Anderson, vice president of platforms marketing for Novell. "This certification is very exciting for government buyers who are choosing SGI solutions, as they can be confident in the security of SGI and SUSE Linux."

"Linux on SGI solutions continues to prove itself as a stable, secure operating system that is ready for prime time in commercial, research and government environments," said Anthony Robbins, president, SGI Federal. "The certification of Novell's SUSE Linux Enterprise Server 9 on SGI Altix systems further broadens the market opportunity for these world-class offerings among government and military customers the world over."

SILICON GRAPHICS | The Source of Innovation and Discovery™
SGI, also known as Silicon Graphics, Inc. (NYSE: SGI), is a leader in high-performance computing, visualization and storage. SGI's vision is to provide technology that enables the most significant scientific and creative breakthroughs of the 21st century. Whether it's sharing images to aid in brain surgery, finding oil more efficiently, studying global climate, providing technologies for homeland security and defense or enabling the transition from analog to digital broadcasting, SGI is dedicated to addressing the next class of challenges for scientific, engineering and creative users. With offices worldwide, the company is headquartered in Mountain View, Calif., and can be found on the Web at www.sgi.com.

Silicon Graphics, SGI, Altix, the SGI cube and the SGI logo are registered trademarks, The Source of Innovation, and Discovery is a trademark of Silicon Graphics, Inc., in the United States and/or other countries worldwide. Linux is a registered trademark of Linus Torvalds in several countries. Novell is a registered trademark, and SUSE is a trademark of Novell, Inc. in the United States and other countries. All other trademarks mentioned herein are the property of their respective owners.