Book Image

MySQL Admin Cookbook

By : Daniel Schneller, Udo Schwedt
Book Image

MySQL Admin Cookbook

By: Daniel Schneller, Udo Schwedt

Overview of this book

<p>MySQL is the most popular open-source database and is also known for its easy set up feature. However, proper configuration beyond the default settings still is a challenge, along with some other day-to-day maintenance tasks such as backing up and restoring, performance tuning, and server monitoring. These tasks have not been covered thoroughly in the default documentation.<br /><br />This book provides both step-by-step recipes and relevant background information on these topics and more. It covers everything from basic to advanced aspects of MySQL administration and configuration. One of the things you are really going to love about this book is that all recipes are based on real-world experience and were derived from proven solutions used in an enterprise environment.<br /><br />This book shows you everything you need to know about MySQL Administration. You will learn to set up MySQL replication to manage load balancing and deal with online backup and fail-over scenarios. As you consider the benefits of backing up, you might like to back up your database efficiently with advanced techniques covered in this book.<br /><br />The book demonstrates how to create, modify, and delete indexes. You will also learn to identify duplicate indexes, which hinder your MySQL server performance. This book focuses on administration tasks and will help you as an administrator to optimize the database for efficiency and reliability.<br /><br />You will learn to manage data efficiently by inserting data in existing database content and importing and exporting databases. The sooner you learn about taking advantage of metadata from this book, the sooner you can start using the space efficiently. Get to know about managing users and assigning privileges and regaining lost administrative user credentials. Finally, learn to manage the database schema by customizing it to automate database schema evolution in the context of application updates.</p>
Table of Contents (16 chapters)
MySQL Admin Cookbook
Credits
About the Authors
About the Reviewers
Preface
Index

Allowing access from specific hosts only


When creating a user account using MySQL Administrator, the user is by default entitled to log in from any host. If the account will be used on specific clients only, it is advisable to modify the account in such a way that login is restricted to these clients. This helps to reduce the chance of successful attacks against your database server because a possible intruder will not only have to get hold of (or guess) the proper credentials, but also has to seize control of one of the registered clients.

The following recipe will guide you through the steps of restricting a user account to a specific host.

Getting ready

For the following steps, we assume that an account with username example has already been defined and that this account is enabled for login from any host. We furthermore assume that this account should be changed in such a way that it can only be used to log in from host client1.mycompany.com.

How to do it...

  1. Start MySQL Administrator....