Conventions

The following formatting conventions are used throughout this book:

• Italic is used for commands, file names, directories, script variables, keywords, emphasis, technical terms, and Internet domain names.

• Constant width is used for code sections, interface names, and IP addresses.

• Constant width italic is used for replaceable text.

• Constant width bold is used for user input and emphasis within code.

• Constant width bold italic is used to highlight replaceable items within code.