Wow! eBook – Blog

Book Description

Working with data and databases in C# certainly can be daunting if you’re coming from VB6, VBA, or Access. With this hands-on guide, you’ll shorten the learning curve considerably as you master accessing, adding, updating, and deleting data with C#—basic skills you need if you intend to program with this language.

No previous knowledge of C# is necessary. By following the examples in this book, you’ll learn how to tackle several database tasks in C#, such as working with SQL Server, building data entry forms, and using data in a web service. The book’s code samples will help you get started on your own projects.

• Create a Windows Forms application with a datagrid
• Connect to multiple data sources, including Access and SQL Server
• Add, edit, and update data in a database you choose and design
• Enable users to choose their data source at runtime
• Learn the roles of DataTable, DataView, BindingSource, Filters, and other objects
• Understand where variables are declared and how they impact the code
• Build a simple web service that connects to a database

Table of Contents
Chapter 1. First Steps: Form with a Datagrid
Chapter 2. C# Data Access to SQL Server Download Now »

Book Description

The DNS & BIND Cookbook presents solutions to the many problems faced by network administrators responsible for a name server. Following O’Reilly’s popular problem-and-solution cookbook format, this title is an indispensable companion to DNS & BIND, 4th Edition, the definitive guide to the critical task of name server administration. The cookbook contains dozens of code recipes showing solutions to everyday problems, ranging from simple questions, like, “How do I get BIND?” to more advanced topics like providing name service for IPv6 addresses. It’s full of BIND configuration files that you can adapt to your sites requirements.

With the wide range of recipes in this book, you’ll be able to

• Check whether a name is registered
• Register your domain name and name servers
• Create zone files for your domains
• Protect your name server from abuse
• Set up back-up mail servers and virtual email addresses
• Delegate subdomains and check delegation
• Use incremental transfer
• Secure zone transfers
• Restrict which queries a server will answer
• Upgrade to BIND 9 from earlier version
• Perform logging and troubleshooting Download Now »

Book Description

If you’re preparing to roll out IPv6 on your network, this concise book provides the essentials you need to support this protocol with DNS. You’ll learn how DNS was extended to accommodate IPv6 addresses, and how you can configure a BIND name server to run on the network. This book also features methods for troubleshooting problems with IPv6 forward- and reverse-mapping, and techniques for helping islands of IPv6 clients communicate with IPv4 resources.

Topics include:

• DNS and IPv6—Learn the structure and representation of IPv6 addresses, and the syntaxes of AAAA and PTR records in the ip6.arpa IPv6 reverse-mapping zone
• BIND on IPv6—Use IPv6 addresses and networks in ACLs, and register and delegate to IPv6-speaking name servers
• Resolver Configuration—Configure popular stub resolvers (Linux/Unix, MacOS X, and Windows) to query IPv6-speaking name servers
• DNS64—Learn about the transition technology that allows clients with IPv6-only network stacks to communicate with IPv4 servers
• Troubleshooting—Use the nslookup and dig troubleshooting tools to look up the IPv6 addresses of a domain name, or reverse-map an IPv6 address to a domain name

Table of Contents
Chapter 1 DNS and IPv6 Download Now »

Book Description

Pro DNS and BIND 10 guides you through the challenging array of features surrounding DNS with a special focus on the latest release of BIND, the world’s most popular DNS implementation. This book unravels the mysteries of DNS, offering insight into origins, evolution, and key concepts like domain names and zone files. This book focuses on running DNS systems based on BIND 10, the first stable release that includes support for the latest DNSSEC standards.

Whether you administer a DNS system, are thinking about running one, or you simply want to understand the DNS system, then this book for you. Pro DNS and BIND 10 starts with simple concepts, then moves on to full security-aware DNSSEC configurations. Various features, parameters, and Resource Records are described and illustrated with examples.

The book contains a complete reference to zone files, Resource Records, and BIND’s configuration file parameters. You can treat the book as a simple paint-by-numbers guide to everything from a simple caching DNS to the most complex secure DNS (DNSSEC) implementation. Background information is included for when you need to know what to do and why you have to do it, and so that you can modify processes to meet your unique needs.

What you’ll learn

• Get an introduction to DNS, zone files, Resource Records, DNS Operators, Types, and IPv6 Download Now »

Book Description

If you’re an experienced system administrator looking to acquire Linux skills, or a seasoned Linux user facing a new challenge, Linux System Administration offers practical knowledge for managing a complete range of Linux systems and servers. The book summarizes the steps you need to build everything from standalone SOHO hubs, web servers, and LAN servers to load-balanced clusters and servers consolidated through virtualization. Along the way, you’ll learn about all of the tools you need to set up and maintain these working environments.Linux is now a standard corporate platform with users numbering in the hundreds of millions, and there is a definite shortage of talented administrators. Linux System Administration is ideal as an introduction to Linux for Unix veterans, MCSEs, and mainframe administrators, and as an advanced (and refresher) guide for existing Linux administrators who will want to jump into the middle of the book. Inside, you’ll learn how to: Set up a stand-alone Linux server Install, configure, maintain, and troubleshoot a DNS server using BIND Build an Internet server to manage sites, perform email and file transfers, and more Set up an email service for a small-to-medium-sized site, complete with authentication Install and configure Apache, PHP, and MySQL on a web server built from scratch Combine computers into a load-balanced Apache web server cluster based on the free Linux Virtual Server Set up local network services from distributed file systems to DHCP services, gateway services, print services, user management and more Use Linux virtualization with Xen or VMWare to run multiple kernels on one piece of hardware; manage each kernel’s access to processortime, devices, and memory Create shell scripts and adapt them for your own needs Back up and restore data with rsync, tar, cdrecord, Amanda, and MySQL tools Linux System Administration is not only knowledgeable and practical, but convenient. The ingredients for this book had been scattered throughout mailing lists, forums, and discussion groups, as well as books, periodicals, and the experiences of colleagues. Everything is now in one handy guide. In the course of their research, the authors also solved many problems whose solutions were completely undocumented. They now pass their lessons on to you. Download Now »