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Linux Server Security, Second Edition
book

Linux Server Security, Second Edition

by Michael D. Bauer
January 2005
Intermediate to advanced content levelIntermediate to advanced
544 pages
23h 44m
English
O'Reilly Media, Inc.
Content preview from Linux Server Security, Second Edition
This is the Title of the Book, eMatter Edition
Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved.
Postfix
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287
If for whatever reason you can’t use a binary package, obtain Postfix’s source code at
http://www.postfix.org. If you wish to compile Postfix with TLS (SSL) support, you’ll
also need to obtain Lutz Jaenicke’s patch, which is available from his web site: http://
www.aet.tu-cottbus.de/personen/jaenicke/postfix_tls/. Note that Wietse Venema’s rea-
son for not building in TLS support himself is that, according to the Postfix home
page, he hasn’t yet “figured out a way to avoid adding tens of thousands of lines of
code to the SMTP client and server programs.” (In other words, this patch adds com-
plexity to a program whose main purpose in life is to be simple and, presumably,
more secure.)
Postx for the Lazy: A Quick-Start Procedure
One of the best things about Postfix is that it can be set up quickly and easily with-
out sacrificing security. Therefore, before we go any further, let’s look at a minimal
Postfix quick-start procedure. For many users, these are the only steps necessary to
configure Postfix on an SMTP gateway:
1. Install Postfix from a binary package via your local package tool (rpm, dpkg, etc.)
or by compiling and installing from source (see “When and How to Compile
from Source”).
2. Open /etc/postfix/main.cf with the text editor of your choice, and set the parame- ...
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Publisher Resources

ISBN: 0596006705Supplemental ContentCatalog PageErrata