Mastering Linux Security and Hardening

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "let's use getfacl to see if we have any Access Control Lists already set on the acl_demo.txt file."

A block of code is set as follows:

   [base]        name=CentOS-$releasever - Base        mirrorlist=http://mirrorlist.centos.org/?        release=$releasever&arch=$basearch&repo=os&infra=$infra          #baseurl=http://mirror.centos.org/centos/           $releasever/os/$basearch/        gpgcheck=1        gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7        priority=1

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

[donnie@localhost ...