Today's system administrators deal with a vast number of situations, operating systems, software packages, and problems. Those who are in the know have kept their copy of Linux Server Hacks close at hand to ease their burden. And while this helps, it's not enough: any sys admin knows there are many more hacks, cool tips, and ways of solving problems than can fit in a single volume (one that mere mortals can lift, that is). Which is why we created Linux Server Hacks, Volume Two, a second collection of incredibly useful tips and tricks for finding and using dozens of open source tools you can apply to solve your sys admin problems. The power and flexibility of Linux and Open Source means that there is an astounding amount of great software out there waiting to be applied to your sys admin problems -- if only you knew about it and had enough information to get started. Hence, Linux Server Hacks, Volume Two. This handy reference offers 100 completely new server management tips and techniques designed to improve your productivity and sharpen your administrative skills. Each hack represents a clever way to accomplish a specific task, saving you countless hours of searching for the right answer. No more sifting through man pages, HOWTO websites, or source code comments -- the only resource you need is right here. And you don't have to be a system administrator with hundreds of boxen to get something useful from this book as many of the hacks apply equally well to a single system or a home network. Compiled by experts, these hacks not only give you the step-by-step instructions necessary to implement the software, but they also provide the context to truly enable you to learn the technology. Topics include: Authentication Remote GUI connectivity Storage management File sharing and synchronizing resources Security/lockdown instruction Log files and monitoring Troubleshooting System rescue, recovery, and repair Whether they help you recover lost data, collect information from distributed clients, or synchronize administrative environments, the solutions found in Linux Server Hacks, Volume Two will simplify your life as a system administrator.

This unique and valuable collection of tips, tools, and scripts provides direct, hands-on solutions that can be used by anyone running a network of Linux servers.

For anyone running a network of Linux servers--whether it's a large data center or a small home network--this engaging book provides short, targeted lessons to improve their productivity and sharpen their administration skills.

Learn how to attack and defend the world’s most popular web server platform Linux Server Security: Hack and Defend presents a detailed guide for experienced admins, aspiring hackers and other IT professionals seeking a more advanced understanding of Linux security. Written by a 20-year veteran of Linux server deployment this book provides the insight of experience along with highly practical instruction. The topics range from the theory of past, current, and future attacks, to the mitigation of a variety of online attacks, all the way to empowering you to perform numerous malicious attacks yourself (in the hope that you will learn how to defend against them). By increasing your understanding of a hacker’s tools and mindset you're less likely to be confronted by the all-too-common reality faced by many admins these days: someone else has control of your systems. Master hacking tools and launch sophisticated attacks: perform SQL injections, deploy multiple server exploits and crack complex passwords. Defend systems and networks: make your servers invisible, be confident of your security with penetration testing and repel unwelcome attackers. Increase your background knowledge of attacks on systems and networks and improve all-important practical skills required to secure any Linux server. The techniques presented apply to almost all Linux distributions including the many Debian and Red Hat derivatives and some other Unix-type systems. Further your career with this intriguing, deeply insightful, must-have technical book. Diverse, broadly-applicable and hands-on practical, Linux Server Security: Hack and Defend is an essential resource which will sit proudly on any techie's bookshelf.

Linux Server Hacks 2 covers a wide variety of topics like replication, emulation, authentication, print management, and file sharing. Essential security and lockdown instructions are included for SELinux and firewall users. Coverage of advanced system administration hacks are included for topics such as request tracking, web mail, and shared calendars. While it's an ideal follow-up to Linux Server Hacks, this book is a valuable asset all on its own.

If you've bought or sold items through eBay, or through hundreds of other online sites, then you're familiar with PayPal, the online payment service. With PayPal, a valid email address, and a credit card or bank account, you can easily send and receive payments online. Not a bank or financial institution itself, PayPal describes its service as one that builds on the financial infrastructure of bank accounts and credit cards, and using advanced propriety fraud prevention systems, creates a safe, global, real-time payment solution. Put simply, PayPal provides the means for people to conduct financial transactions online, instantly and securely. But there's more to PayPal than meets the eye. PayPal Hacks shows you how to make the most of PayPal to get the most out of your online business or transactions. Authors Shannon Sofield of Payloadz.com and PayPal evangelist David Nielsen guide you through the rigors of using and developing with PayPal. Whether you're building an ecommerce site using PayPal as a transaction provider, or simply trying to pay for an eBay auction without getting burned, PayPal Hacks will give you the skinny on this leading global online payment service. The collection of tips and tricks in PayPal Hacks shows you how to find or even build the right tools for using PayPal to buy and sell on eBay or as a transaction provider for ecommerce on your own site. Written for all PayPal users, from those just starting out to those developing sophisticated ecommerce sites, this book begins with the basics such as setting up your account, then moves quickly into specific tips and tools for buyers, sellers, and developers. With PayPal Hacks, you can: Learn extra steps to help protect yourself while buying or selling on eBay Save time and money with advanced tips and undocumented features Learn dozens of easy-to-follow procedures to help you request and receive payments and fill orders Use PayPal to handle subscriptions, affiliate systems, and donations Create and customize your customers' checkout process Effortlessly integrate PayPal's shopping cart system into your own website Implement digital fulfillment with Instant Payment Notification (IPN) and Payment Data Transfer (PDT) Develop and distribute ecommerce applications with the PayPal API Each hack consists of a task to be accomplished or a creative solution to a problem, presented in a clear, logical, and task-oriented format. PayPal Hacks provides the tools and details necessary to make PayPal more profitable, more flexible, and more convenient.

Voice over Internet Protocol is gaining a lot of attention these days. Both practical and fun, this text provides technology enthusiasts and voice professionals with dozens of hands-on projects for building a VoIP network, including a softPBX.