System configuration files and directories reside under the
/etc directory. Some major software packages, such as Apache, OpenSSH, and
xinetd, have their own subdirectories in
/etc filled with configuration files. Others like
fstab use one file. Examples of system-related configuration files in
/etc include the following:
fstab—The file system table is a text file listing each hard drive, CD-ROM, floppy, or other storage device attached to your PC. The table indexes each device’s partition information with a place in your Linux file system (directory layout) and lists other options for each device when used ...