red hat enterprise linux 6 administration is the ideal guide for those already familiar with the linux, but are looking need the know - how to administer of red hat enterprise linux network. this book teaches these topics in an easy to follow approach, and can be used as both a teaching tool as well as a reference guide. this book explains everything the reader needs to know about red hat enterprise linux administration. it will be extensive and cover administration topics about red hat enterprise linux and some of the most important topics that are used on top of it, including: setting up and managing web and mail services. using red hat enterprise linux system in enterprise environments. securing red hat enterprise linux to protect it against intruders. understanding and optimizing storage to fit your environment. performing advanced red hat enterprise linux configurations, including virtualization and high availability. in addition, this book is an ideal supplement for those preparing for the difficult, performance - based red hat certifications. the rhcsa exam costs $400, and is a half - day, lab - based exam, and is a prerequisite for the advance rhce certification. the rhce is also $400, and candidates have two hours to perform numerous hands - on tasks using red hat linux enterprise. exams are only offered at one of 45 testing centers, and are only offered certain times of the year