Linux consistently appears high up in the list of popular Internet
servers, whether it's for the Web, anonymous FTP, or general
services such as DNS and delivering mail. But security is the
foremost concern of anyone providing such a service. Any server
experiences casual probe attempts dozens of time a day, and serious
break-in attempts with some frequency as well.
This highly regarded book, originally titled "Building Secure
Servers with Linux," combines practical advice with a firm
knowledge of the technical tools needed to ensure security. The
book focuses on the most common use of Linux--as a hub offering
services to an organization or the Internet--and shows readers how
to harden their hosts against attacks. An all-inclusive resource
for Linux users who wish to harden their systems, "Linux Server
Security" covers general security such as intrusion detection and
firewalling a hub, as well as key services such as DNS, the Apache
Web server, mail, and secure shell.
Author Michael D. Bauer, a security consultant, network
architect, and lead author of the popular Paranoid Penguin column
in the "Linux Journal," carefully outlines the security risks,
defines precautions that can minimize those risks, and offers
recipes for robust security. He is joined on several chapters by
administrator and developer Bill Lubanovic.
A number of new security topics have been added for this
edition, including:
Database security, with a focus on MySQL
Using OpenLDAP for authentication
An introduction to email encryption
The Cyrus IMAP service, a popular mail delivery agent
The vsftpd FTP server
Geared toward Linux users with little security expertise, the
author explainssecurity concepts and techniques in clear language,
beginning with the fundamentals. "Linux Server Security" with Linux
provides a unique balance of "big picture" principles that
transcend specific software packages and version numbers, and very
clear procedures on securing some of those software packages on
several popular distributions. With this book in hand, you'll have
both the expertise and the tools to comprehensively secure your
Linux system.
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