Postfix is a Mail Transfer Agent (MTA): software that mail servers use to route email. Postfix is highly respected by experts for its secure design and tremendous reliability. And new users like it because it's so simple to configure. In fact, Postfix has been adopted as the default MTA on Mac OS X. It is also compatible with sendmail, so that existing scripts and programs continue to work seamlesslyafter it is installed.

Postfix was written by well-known security expert Wietse Venema, who reviewed this book intensively during its entire development. Author Kyle Dent covers a wide range of Postfix tasks, from virtual hosting to controls for unsolicited commercial email.

While basic configuration of Postfix is easy, every site has unique needs that call for a certain amount of study. This book, with careful background explanations and generous examples, eases readers from the basic configuration to the full power of Postfix. It discusses the Postfix interfaces to various tools that round out a fully scalable and highly secure email system. These tools include POP, IMAP, LDAP, MySQL, Simple Authentication and Security Layer (SASL), and Transport Layer Security (TLS, an upgrade of SSL). A reference section for Postfix configuration parameters and an installation guide are included.

Topics include:

From compiling and installing Postfix to troubleshooting, Postfix: The Definitive Guide offers system administrators and anyone who deals with Postfix an all-in-one, comprehensive tutorial and reference to this MTA.

As Linux continues to grow in popularity, there has never been more of a need to understand how to develop for this platform. Rather than focusing on a particular language or development technique, Professional Linux Programming looks at the different development environments within Linux - the kernel, the desktop, and the web - and then demonstrates best practices, tools, and techniques for integrating applications with the OS as a whole. This book is essential for understanding the nuances that differentiate programming for Linux from programming for any other platform. After beginning with simple shell scripts, the reader quickly moves on to the more advanced topics like software drivers and the graphical interface.

The wide variety of tools that you can use to build application software, utilities, and even the Linux kernel itself are covered. You'll also explore the unique components of a Linux system and delve into the inner workings of the system. And you'll find out how to use Linux with the web by writing software for the LAMP (Linux, Apache, MySQL, Perl/Python) stack. You'll then be able to apply this information to streamline software development while incorporating cutting-edge features and functionality.

Book Details

Publisher: Wrox

By: Jon Masters, Richard Blum

ISBN: 978-1-4571-0736-8

Year: 2007

Paperback: 465 pages

Language: English

File size: 6.3 MB

File format: PDF

Book Details

Publisher: Addison-Wesley

By: Robert Love

ISBN: 978-0-6723-2946-3

Year: 2010

Paperback: 441 pages

Language: English

File size: 4.5 MB

File format: PDF

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Match characters sets

Match repeating characters (using minimums and maximums if needed)

Match (or ignore) based on case

Build sub-expressions

Use all of the special characters

Work with excape sequences

Use POSIX classes to simplify complex expressions

Use back-references

Use look-behind operators

Sams Teach Yourself Regular Expressions in 10 Minutes is a tutorial book organized into a series of easy-to-follow 10-minute lessons. These well targeted lessons teach you in 10 minutes what other books might take hundreds of pages to cover. Instead of dwelling on syntax, terminology, and arcane examples and scenarios, this book takes a very hands-on approach to solving the needs of the majority of RegEx users who simply need to manipulate data.

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This book introduces the various parts of the construction of a regular expression pattern, explains what they mean, and walks you through working examples showing how they work and why they do what they do. By working through the examples, you will build your understanding of how to make regular expressions do what you want them to do and avoid creating regular expressions that don’t meet your intentions.

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This cookbook provides more than 100 recipes to help you crunch data and manipulate text with regular expressions. Every programmer can find uses for regular expressions, but their power doesn't come worry-free. Even seasoned users often suffer from poor performance, false positives, false negatives, or perplexing bugs. Regular Expressions Cookbook offers step-by-step instructions for some of the most common tasks involving this tool, with recipes for C#, Java, JavaScript, Perl, PHP, Python, Ruby, and VB.NET.

With this book, you will:

Whether you're a novice or an experienced user, Regular Expressions Cookbook will help deepen your knowledge of this unique and irreplaceable tool. You'll learn powerful new tricks, avoid language-specific gotchas, and save valuable time with this huge library of proven solutions to difficult, real-world problems.

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Publisher: O'Reilly Media

Released: July 2002

Regular expressions are an extremely powerful tool for manipulating text and data.They have spread like wildfire in recent years, now offered as standard features inPerl, Java, VB.NET and C# (and any language using the .NET Framework), PHP, Python,Ruby, Tcl, MySQL, awk, Emacs, and many other popular tools and languages. Ifyou don't use regular expressions yet, you will discover in this book a whole newworld of mastery over your data. If you already use them, you'll appreciate thisbook's unprecedented detail and breadth of coverage. If you think you know all youneed to know about regular expressions, this book is a stunning eye-opener. In spitetheir wide availability, flexibility, and unparalleled power, regular expressions arefrequently underutilized. Regular expressions allow you to code complex and subtletext processing that you never imagined could be automated. Regular expressions cansave you time and aggravation. They can be used to craft elegant solutions to a widerange of problems. A command of regular expressions is an invaluable skill. Yet whatis power in the hands of an expert can be fraught with peril for the unwary.

Mastering Regular Expressions will help you navigate the minefield to becomingan expert. Once you've mastered regular expressions, they'll become an invaluablepart of your toolkit. You will wonder how you ever got by without them.MasteringRegular Expressions, Second Edition has been thoroughly updated to include allthe new features of Perl 5.8, as well as several other languages, including Java,VB.NET, C#, Python, JavaScript, Tcl, and Ruby. Written in the lucid, entertainingtone that made a complex, dry topic crystal-clear to thousands of programmers, andsprinkled with solutions to complex real-world problems, Mastering RegularExpressions offers a wealth information that you can put to immediate use. Topicsinclude:

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