Foundations of CentOS Linux

■About the Authors ................................................................................................... xvii
■About the Technical Reviewer .................................................................................. xx
■Acknowledgments ................................................................................................... xxi
■Introduction ............................................................................................................ xxii
■Chapter 1: Installation ................................................................................................ 1
■Chapter 2: BASH ....................................................................................................... 31
■Chapter 3: Client/Host Configuration ........................................................................ 55
■Chapter 4: Data Storage Management ...................................................................... 71
■Chapter 5: User Management ................................................................................... 87
■Chapter 6: X Window System ................................................................................. 105
■Chapter 7: Package Management .......................................................................... 133
■Chapter 8: Basic Linux Security ............................................................................. 153
■Chapter 10: Network Security ................................................................................ 203
■Chapter 11: Network Services ................................................................................ 227
■Chapter 12: Open Source Databases ...................................................................... 261
■Chapter 13: Linux Web Services ............................................................................. 289
■Chapter 14: File Sharing Services .......................................................................... 313
■Chapter 15: Linux Mail Servers .............................................................................. 335
■Chapter 16: Directory Services ............................................................................... 373
■Chapter 17: The Linux Kernel ................................................................................. 415
■Chapter 18: Linux Virtualization ............................................................................. 435
■Chapter 19: Linux Troubleshooting ......................................................................... 457
■Index ....................................................................................................................... 471

■About the Authors ................................................................................................... xvii
■About the Technical Reviewer .................................................................................. xx
■Acknowledgments ................................................................................................... xxi
■Introduction ............................................................................................................ xxii
■Chapter 1: Installation ................................................................................................ 1
Preinstallation Steps ......................................................................................................................................... 1
Installation ......................................................................................................................................................... 3
Troubleshooting ............................................................................................................................................... 29
Summary ......................................................................................................................................................... 30
■Chapter 2: BASH ....................................................................................................... 31
Working with the Command-Line Interface ..................................................................................................... 31
Identifying the Working User ...................................................................................................................... 32
The Linux Filesystem .................................................................................................................................. 33
Directory Management ............................................................................................................................... 35
Listing the Contents of a Directory ............................................................................................................. 36
Traversing Directories ................................................................................................................................ 39
Absolute and Relative Paths .................................................................................................................. 39
Creating Directories .................................................................................................................................... 40
Renaming and Moving Files ....................................................................................................................... 40
Deleting Directories and Files ..................................................................................................................... 41
Creating and Viewing Text Files ................................................................................................................. 42
Viewing the Contents of a File .................................................................................................................... 44
Text Processing ............................................................................................................................................... 45
Standard I/O Devices .................................................................................................................................. 46
Redirection ................................................................................................................................................. 47
Piping .......................................................................................................................................................... 47
Getting Help ..................................................................................................................................................... 48
Environment Variables ..................................................................................................................................... 51
Creating and Running Your Own Script ........................................................................................................... 52
Summary ......................................................................................................................................................... 54
■Chapter 3: Client/Host Configuration ........................................................................ 55
The Boot Process ............................................................................................................................................. 55
The Boot Loader .......................................................................................................................................... 55