Hosam Al Ali is a Senior Unix/Linux System Administrator since 8 years and lives in Riyadh, Saudi Arabia. He is working at Sun Microsystems, Inc., with the open source community as Team Leader for Arabic Language Translation and is a Top Contributor at opensolaris.org.

He is certified by Sun Microsystems, Inc., and has accomplished Solaris 10, 11 courses and exams. He writes a blog at http://hosam.wordpress.com to share his experience and skills online.

Darryl Gove is a Senior Principal Software Engineer in the Oracle Solaris Studio team, who works on optimizing applications and benchmarks for current and future processors. He is the author of Multicore Application Programming: for Windows, Linux, and Oracle Solaris (Developer's Library), Addison Wesley; Solaris Application Programming, Prentice Hall; and The Developer's Edge, Sun Microsystems. He writes a blog at http://www.darrylgove.com.

Mark Round is a systems administrator with nearly 20 years of experience running Unix. Starting with NetBSD on his Amiga, he has administered a diverse variety of platforms, including OpenVMS, Solaris, AIX, IRIX, FreeBSD, and Linux.

He has managed thousands of systems across a wide range of industries, from publishing and media to telecom and finance. Currently, he works for one of the largest media companies in the world as a DevOps engineer; he has spent the last few years working on large-scale infrastructure projects.

He is involved in a number of open source community projects. He maintains an IPS repository of useful Solaris 11 packages and writes his blog at http://www.markround.com.

Johnny Trujillo has experience as a teacher at a New York City college. He is a United States Air Force Reserve technologist, and with over 25 years of experience working with Solaris, Linux, Windows OS, as well as Networking, Telephony, Security, Data Centers, Virtualization, and Cloud Technologies, he runs his own computer training and ICT consulting business.

Johnny works as a Senior Project Manager, applying the PMI, PRINCE2, and Agile methodologies to manage the delivery of Data Centers, Virtual and Cloud Technology Infrastructure, and software implementations for the Financial, Banking, Mining, Airlines, Education, and Telecom industries.