Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Mail Systems
Eclipse Documentation

How To Guides
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Problem Solutions
Privacy Policy




NOTE: CentOS Enterprise Linux is built from the Red Hat Enterprise Linux source code. Other than logo and name changes CentOS Enterprise Linux is compatible with the equivalent Red Hat version. This document applies equally to both Red Hat and CentOS Enterprise Linux.

17.5. Additional Resources

Additional information concerning TCP wrappers and xinetd is available from system documentation and on the Internet.

17.5.1. Installed Documentation

The bundled documentation on your system is a good place to start looking for additional TCP Wrappers, xinetd, and access control configuration options.

  • /usr/share/doc/tcp_wrappers-<version>/ — This directory contains a README file that discusses how TCP wrappers work and the various hostname and host address spoofing risks that exist.

  • /usr/share/doc/xinetd-<version>/ — This directory contains a README file that discusses aspects of access control and a sample.conf file with various ideas for modifying service-specific configuration files in the /etc/xinetd.d/ directory.

  • TCP wrappers and xinetd related man pages — There are a number of man pages for the various applications and configuration files involved with TCP wrappers and xinetd. The following lists some of the more important man pages.

    Server Applications
    • man xinetd — The man page for the xinetd super service daemon.

    Configuration Files
    • man 5 hosts_access — The man page for the TCP wrappers hosts access control files.

    • man hosts_options — The man page for the TCP wrappers options fields.

    • man xinetd.conf — The man page listing xinetd configuration options.

17.5.2. Useful Websites

17.5.3. Related Books

  • Red Hat Enterprise Linux Security Guide; Red Hat, Inc. — Provides an overview of workstation, server, and network security with specific suggestions regarding TCP wrappers and xinetd.

  • Hacking Linux Exposed by Brian Hatch, James Lee, and George Kurtz; Osbourne/McGraw-Hill — An excellent security resource with featuring information about TCP wrappers and xinetd.

  Published under the terms of the GNU General Public License Design by Interspire