Book Image

PostgreSQL 14 Administration Cookbook

By : Simon Riggs, Gianni Ciolli
5 (1)
Book Image

PostgreSQL 14 Administration Cookbook

5 (1)
By: Simon Riggs, Gianni Ciolli

Overview of this book

PostgreSQL is a powerful, open-source database management system with an enviable reputation for high performance and stability. With many new features in its arsenal, PostgreSQL 14 allows you to scale up your PostgreSQL infrastructure. With this book, you'll take a step-by-step, recipe-based approach to effective PostgreSQL administration. This book will get you up and running with all the latest features of PostgreSQL 14 while helping you explore the entire database ecosystem. You’ll learn how to tackle a variety of problems and pain points you may face as a database administrator such as creating tables, managing views, improving performance, and securing your database. As you make progress, the book will draw attention to important topics such as monitoring roles, validating backups, regular maintenance, and recovery of your PostgreSQL 14 database. This will help you understand roles, ensuring high availability, concurrency, and replication. Along with updated recipes, this book touches upon important areas like using generated columns, TOAST compression, PostgreSQL on the cloud, and much more. By the end of this PostgreSQL book, you’ll have gained the knowledge you need to manage your PostgreSQL 14 database efficiently, both in the cloud and on-premise.
Table of Contents (14 chapters)

Overview of PostgreSQL security

Security is a huge area of related methods and technologies, so we will take a practical approach, covering the most common issues related to database security.

First, we set up access rules in the database server. PostgreSQL allows you to control access based upon the host that is trying to connect, using the pg_hba.conf file. You can specify SSL/GSSAPI connections if needed or skip that if the network is secure. Passwords are encrypted using SCRAM-SHA-256, but many other authentication methods are available.

Next, set up the role and privileges for accessing your data. Modern databases should be configured using the principle of least privilege (POLP). Data access is managed by a privilege system, where users are granted different privileges for different tables or other database objects, such as schemas or functions. Thus, some records or tables can only be seen by certain users, and even those tables that are visible to everyone can have restrictions...