About the Author
Richard Blum has been a network and systems administrator for more than 30 years. During this time, he has had the opportunity to support Microsoft, UNIX, and Linux servers, and write support programs in C/C++, Java, UNIX/Linux shell scripts, PHP, and the .NET platform. Rich is also an instructor for a worldwide online course provider, with more than 15 years of experience teaching PHP, JavaScript, HTML5, and CSS3 programming courses, as well as a Linux administration course in an adult continuing education environment used by community colleges. Rich also volunteers for nonprofit organizations doing computer and audiovisual support. When he’s not busy being a computer nerd, Rich enjoys his time helping out at his church Friendship Bible Study group, and spending time with his wife, Barbara, and two daughters, Katie Jane and Jessica.
Dedication
To all the students, readers, and coworkers who have forced me to continue learning new things by asking questions. Never stop asking questions!
“Great are the works of the LORD, studied by all who delight in them.”
—Psalm 111:2 (ESV)
Author’s Acknowledgments
First, all praise and glory go to God, who through His Son makes all things possible and gives us the gift of eternal life.
Many thanks go to the great team at John Wiley & Sons for their help and guidance throughout the development of this book. Special thanks to Steve Hayes for offering me the opportunity to work on this project and to the Project Manager, Kezia ...
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