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IBM developerWorks: Using the xinetd program for system administration

[ Thanks to Kellie
for this link. ]

“The classic inetd daemon has been around for a long
time. There are several ways to replace its functionality, but the
most flexible and easiest way seems to be xinetd. Xinetd does all
the things inetd can do, and a lot more. TCP wrapping, modular
configuration, connection redirection, and load limits on incoming
connections are just a few of the features that make xinetd a nice
choice for system administrators.

This article is meant for the beginner to intermediate system
administrator and the explanations and examples will try not to
assume that you are already familiar with inetd. In this article we
will look at some simple uses of xinetd, from installation to
implementation of security policies.

For the purposes of this article, ideally your system should be
a recent (2000 or later) mainstream UNIX (Linux, Solaris, BSD)
installation. The examples may work with earlier versions of Perl
and UNIX, and other operating systems, but their failure to
function should be considered an exercise for the reader to solve.
The specific examples given are for Red Hat Linux, but they should
work (with the exception of chkconfig) on other systems as
well.”

Complete
Story

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