Richard Bejtlich (F2) is founder of TaoSecurity (https://www.taosecurity.com), a company that helps clients detect, contain, and remediate intrusions using network security monitoring (NSM) principles. Richard was previously a principal consultant at Foundstone, performing incident response, emergency NSM, and security research and training. He has created NSM operations for ManTech International Corporation and Ball Aerospace & Technologies Corporation. From 1998 to 2001 then-Captain Bejtlich defended global American information assets in the Air Force Computer Emergency Response Team (AFCERT), performing and supervising the real-time intrusion detection mission. Formally trained as an intelligence officer, Richard is a graduate of Harvard University and the United States Air Force Academy. He authored the critically acclaimed Tao of Network Security Monitoring: Beyond Intrusion Detection in 2004 and Extrusion Detection: Security Monitoring for Internal Intrusions in 2005. Richard co-authored Real Digital Forensics and contributed to Hacking Exposed, 4th Ed.,Incident Response, 2nd Ed., and several Sys Admin Magazine articles. He holds the CISSP, CIFI, and CCNA certifications. Richard writes for his Web log (www.taosecurity.blogspot.com) and teaches at USENIX conferences.

Gerald Carter (W3, R7) has been a member of the Samba Development Team since 1998. He has been developing, writing about, and teaching on open source since the late '90s. Currently employed by Centeris as a Samba and open source developer, Gerald has written books for SAMS Publishing and for O'Reilly Publishing.

 
Strata Rose Chalup (R8, F5) began as a fledgling sysadmin in 1983 and has been leading and managing complex IT projects for many years, serving in roles ranging from Project Manager to Director of Network Operations. She has written a number of articles on management and working with teams and has applied her management skills on various volunteer boards, including BayLISA and SAGE. Strata has a keen interest in network information systems and new publishing technologies and built a successful consulting practice around being an avid early adopter of new tools, starting with ncsa_httpd and C-based CGI libraries in 1993 and moving on to wikis, RSS readers, and blogging. Another MIT dropout, Strata founded VirtualNet Consulting in 1993.

Bill Cheswick (R6, F3) logged into his first computer in 1968. Seven years later, he was graduated from Lehigh University in 1975 with a degree resembling Computer Science. Cheswick has worked on (and against) operating system security for over 35 years. He has worked at Lehigh University and the Naval Air Development Center in system software and communications. At the American Newspaper Publishers Association/Research Institute he shared his first patent for a hardware-based spelling checker, a device clearly after its time. For several years he consulted at a variety of universities doing system management, software development, communications design and installation, PC evaluations, etc. In 1998, Ches starting the Internet Mapping Project with Hal Burch. This work became to core technology of a Bell Labs spin-off, Lumeta Corporation, which explores the extent of corporate and government intranets and checks for host leaks that violate perimeter policies. Ches has pinged an active duty US nuclear attack submarine (distance, 66ms). Ches has a wide interest in science and medicine. In his spare time he reads technical journals, hacks on Mythtv and his home, and develops exhibit software for science museums. He eats very plain food—boring by even American standards.

Tom Christiansen (T1) has been involved with Perl since day zero of its initial public release in 1987. Author of several books on Perl, including The Perl Cookbook and Programming Perl from O'Reilly, Tom is also a major contributor to Perl's online documentation. He holds undergraduate degrees in computer science and Spanish and a Master's in computer science. He now lives in Boulder, Colorado.

 
Michael Cucchi (R3) has over 13 years of IT experience. He spent seven of those years as a lead Linux/UNIX/Windows senior system admin and lead system administrator for a major data center for the Federal Department of Transportation. Michael did a two-year stint as a solution engineer for Ammasso, where he helped launch the first RDMA Ethernet NIC. Mike is currently a consultant for Cambridge Computer, a national integrator of data protection and storage networking technologies.

Lee Damon (W5) has a B.S. in Speech Communication from Oregon State University. He has been a UNIX system administrator since 1985 and has been active in SAGE since its inception. He assisted in developing a mixed AIX/SunOS environment at IBM Watson Research and has developed mixed environments for Gulfstream Aerospace and QUALCOMM. He is currently leading the development effort for the Nikola project at the University of Washington Electrical Engineering department. He is past chair of the SAGE Ethics and Policies working groups and he chaired LISA '04.

Jacob Farmer (F4, F7) is a well-known figure in the data storage industry. He has authored numerous papers and articles and is a regular speaker at trade shows and conferences. In addition to his regular expert advice column in the "Reader I/O" section of InfoStor Magazine, the leading trade magazine of the data storage industry, Jacob also serves as the publication's senior technical advisor. Jacob has over 18 years of experience with storage technologies and is the CTO of Cambridge Computer Services, a national integrator of data storage and data protection solutions.

Rik Farrow (T4, W4) provides UNIX and Internet security consulting and training. He has been working with UNIX system security since 1984 and with TCP/IP networks since 1988. He has taught at the IRS, Department of Justice, NSA, NASA, US West, Canadian RCMP, Swedish Navy, and for many U.S. and European user groups. He is the author of UNIX System Security, published by Addison-Wesley in 1991, and System Administrator's Guide to System V (Prentice Hall, 1989). Farrow is the editor of ;login: and a network security columnist for Network magazine. Rik lives with his family in the high desert of northern Arizona and enjoys hiking and mountain biking when time permits.

Æleen Frisch (R1, F1) has been a system administrator for over 20 years. She currently looks after a pathologically heterogeneous network of UNIX and Windows systems. She is the author of several books, including Essential System Administration (now in its 3rd edition).

Peter Baer Galvin (R2, A2) is the Chief Technologist for Corporate Technologies, Inc., a systems integrator and VAR, and was the Systems Manager for Brown University's Computer Science Department. He has written articles for Byte and other magazines. He wrote the "Pete's Wicked World" and "Pete's Super Systems" columns at SunWorld. He is currently contributing editor for Sys Admin, where he manages the Solaris Corner. Peter is co-author of the Operating Systems Concepts and Applied Operating Systems Concepts textbooks. As a consultant and trainer, Peter has taught tutorials on security and system administration and has given talks at many conferences and institutions on such topics as Web services, performance tuning, and high availability.

John Gannon (W2, R5) has over ten years of experience architecting and implementing UNIX, Linux, and Windows infrastructures. John has worked in network engineering, operations, and professional services roles with various companies including Sun Microsystems, University of Pennsylvania, Scient Corporation, and FOX Sports. John's current work at VMware involves delivering server consolidation, disaster recovery, and virtual infrastructure solutions to FORTUNE 500 clients.

Dan Geer (A4)—Milestones: The X Window System and Kerberos (1988), the first information security consulting firm on Wall Street (1992), convenor of the first academic conference on electronic commerce (1995), the "Risk Management Is Where the Money Is" speech that changed the focus of security (1998), the presidency of the USENIX Association (2000), the first call for the eclipse of authentication by accountability (2002), principal author of and spokesman for Cyberinsecurity: The Cost of Monopoly (2003), and co-founder of SecurityMetrics.Org (2004).

Joshua Jensen (W6) has worked for IBM and Cisco Systems, and was Red Hat's first instructor, examiner, and RHCE. He worked with Red Hat for four and a half years, during which he wrote and maintained large parts of the Red Hat curriculum: Networking Services and Security, System Administration, Apache and Secure Web Server Administration, and the Red Hat Certified Engineer course and exam. Joshua has been working with Linux since 1996 and finds himself having come full circle: he recently left IBM to work with Red Hat Linux for Cisco Systems. In his spare time he dabbles in cats, fish, boats, and frequent flyer miles.

Tom Limoncelli (F8), author of O'Reilly's Time Management for System Administrators and co-author of The Practice of System and Network Administration from Addison-Wesley, is Director of IT Services at Cibernet Corp. A sysadmin and network wonk since 1987, he has worked at Dean for America, Lumeta, Bell Labs/Lucent, Mentor Graphics, and Drew University. He is a frequent presenter at LISA conferences.

 
James Mauro (T2) is a Senior Staff Engineer in the Performance and Availability Engineering group at Sun Microsystems. Jim's current interests and activities are centered on benchmarking Solaris 10 performance, workload analysis, and tool development. This work includes Sun's new Opteron-based systems and multicore performance on Sun's Chip Multithreading (CMT) Niagara processor. Jim resides in Green Brook, New Jersey, with his wife and two sons. He spent most of his spare time in the past year working on the second edition of Solaris Internals. Jim co-authored the first edition of Solaris Internals with Richard McDougall and has been writing about Solaris in various forums for the past eight years.

Richard McDougall (T2), had he lived 100 years ago, would have had the hood open on the first four-stroke internal combustion gasoline-powered vehicle, exploring new techniques for making improvements. He would be looking for simple ways to solve complex problems and helping pioneering owners understand how the technology works to get the most from their new experience. These days, McDougall uses technology to satisfy his curiosity. He is a Distinguished Engineer at Sun Microsystems, specializing in operating systems technology and system performance. He is co-author of Solaris Internals (Prentice Hall PTR, 2000) and Resource Management (Sun Microsystems Press, 1999).

Alex Russell (W1) is a Senior Software Engineer at JotSpot and Project Lead for the Dojo Toolkit. Dojo is an Open Source library that helps Web application developers spend more time building great experiences and less time fighting browser quirks. Prior to assisting in the development of Dojo, Alex was primary author of the netWindows DHTML framework. He has been wrestling browsers into relative submission since the late '90s.

John Sellens (F6, A3) has been involved in system and network administration since 1986 and is the author of several related USENIX papers, a number of ;login: articles, and the SAGE Short Topics in System Administration booklet #7, System and Network Administration for Higher Reliability. He holds an M.Math. in computer science from the University of Waterloo and is a chartered accountant. He is the proprietor of SYONEX, a systems and networks consultancy. From 1999 to 2004, he was the General Manager for Certainty Solutions in Toronto. Prior to joining Certainty, John was the Director of Network Engineering at UUNET Canada and was a staff member in computing and information technology at the University of Waterloo for 11 years.

Margo Seltzer (T5) is a Herchel Smith Professor of Computer Science, the Associate Dean for Computer Science and Engineering, and a Harvard College Professor in the Division of Engineering and Applied Sciences at Harvard University. Her research interests include file systems, databases, and transaction processing systems. She is the author of several widely used software packages, including database and transaction libraries and the 4.4BSD log-structured file system. Dr. Seltzer is also a founder and CTO of Sleepycat Software, the makers of Berkeley DB. She is a Sloan Foundation Fellow in Computer Science and a Bunting Fellow, and was the recipient of the 1996 Radcliffe Junior Faculty Fellowship, the University of California Microelectronics Scholarship. She is recognized as an outstanding teacher and won the Phi Beta Kappa teaching award in 1996 and the Abrahmson Teaching Award in 1999. Dr. Seltzer received an A.B. degree in applied mathematics from Harvard/Radcliffe College in 1983 and a Ph.D. in computer science from the University of California, Berkeley, in 1992.

Abe Singer (T3, R4) is a Computer Security Researcher in the Security Technologies Group at the San Diego Supercomputer Center. In his operational security responsibilities, he participates in incident response and forensics and in improving the SDSC logging infrastructure. His research is in pattern analysis of syslog data for data mining. He is co-author of of the SAGE booklet Building a Logging Infrastructure and author of a forthcoming O'Reilly book on log analysis.

David Sklar (A1) is a Software Architect at Ning. He is also the author of Learning PHP 5 (O'Reilly), Essential PHP Tools (Apress), and PHP Cookbook (O'Reilly). After discovering PHP as a solution to his Web programming needs in 1996, he created the PX, which enables PHP users to exchange programs. Since then, he has continued to rely on PHP for personal and professional projects. When away from the computer, Sklar eats mini-donuts, plays records, and likes to cook. He lives in New York City and has a degree in computer science from Yale University.

Theodore Ts'o (A7) has been a Linux kernel developer since almost the very beginnings of Linux: he implemented POSIX job control in the 0.10 Linux kernel. He is the maintainer and author of the Linux COM serial port driver and the Comtrol Rocketport driver, and he architected and implemented Linux's tty layer. Outside of the kernel, he is the maintainer of the e2fsck filesystem consistency checker. Ted is currently employed by IBM Linux Technology Center.