In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text are shown as follows: "The open ssl req command generates both the private key and the certificates in one go."

A block of code is set as follows:

user nobody
group nobody
persist-tun
persist-key
keepalive 10 60
ping-timer-rem

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

[Static Encrypt: 
CIPHER KEY: 8cf9abdd 371392b1 14b51523 25302c99

Any command-line input or output is written as follows:

[root@server]# openvpn --genkey --secret secret.key

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "Click Next on the first screen, and again Next on the second screen."