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PostgreSQL 11 Administration Cookbook

You're reading from PostgreSQL 11 Administration Cookbook Over 175 recipes for database administrators to manage enterprise databases

Product type Paperback

Published in May 2019

Publisher Packt

ISBN-13 9781789537581

Length 600 pages

Edition 1st Edition

Languages

SQL

Tools

PostgreSQL

Concepts

Databases

Authors (3):

Gianni Ciolli

Sudheer Kumar Meesala

Simon Riggs

View More author details

Table of Contents (14) Chapters

Preface

1. First Steps FREE CHAPTER

2. Exploring the Database

3. Configuration

4. Server Control

5. Tables and Data

6. Security

7. Database Administration

8. Monitoring and Diagnosis

9. Regular Maintenance

10. Performance and Concurrency

11. Backup and Recovery

12. Replication and Upgrades

13. Other Books You May Enjoy

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Checking whether all users have a secure password

PostgreSQL has no built-in facilities to make sure that you are using strong passwords.

The best you can do is to make sure that all user passwords are encrypted, and that your pg_hba.conf file does not allow logins with a plain password; that is, always use the SCRAM-SHA-256 login method for users, which was added in PostgreSQL 10. Any servers upgrading from earlier versions should upgrade from md5 to SCRAM-SHA-256 password encryption.

For client applications connecting from trusted private networks, either real or virtual (VPN), you may use host-based access, provided you know that the machine on which the application is running is not used by some non-trusted individuals. For remote access over public networks, it may be a better idea to use SSL client certificates.

How to do it…

To see which users don't yet have SCRAM encrypted passwords, use this query:

test2=# select usename,passwd from pg_shadow where passwd
not like ‘SCRAM%’ or passwd...

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Authors (3)

Simon Riggs

Simon Riggs

Simon Riggs is the CTO of 2ndQuadrant, having contributed to PostgreSQL as a major developer and committer for 14 years. He has written and designed features for replication, performance, BI, management, and security. Under his guidance, 2ndQuadrant is now a leading developer of open source PostgreSQL, serving hundreds of clients in USA, Europe, and worldwide. Simon is a frequent speaker at many conferences on PostgreSQL Futures. He has worked as a database architect for 30 years.

See other products by Simon Riggs

GIANNI CIOLLI

GIANNI CIOLLI

Gianni Ciolli is the head of professional services at 2ndQuadrant and has been a PostgreSQL consultant, trainer, and speaker at many PostgreSQL conferences in Europe and abroad over the last 10 years. He has a PhD in Mathematics from the University of Florence. He has worked with free and open source software since the 1990s and is active in the community (the Prato Linux User Group and the Italian PostgreSQL Users Group). He lives in London with his son. His other interests include music, drama, poetry, and athletics.

See other products by GIANNI CIOLLI

Meesala

Meesala

Sudheer Kumar Meesala is a lead architect at Endurance International Group and has spent the last few years designing and building scalable and secure web applications within finance and internet industries. A large part of his job has included decomposing monolithic legacy applications into microservices. This has required a deep understanding of PostgreSQL, Cassandra, and other NoSQL databases. Other key areas of interest are container orchestration, DevOps, and more. He is also an accomplished speaker and trainer. He lives in Bangalore, India, and spends far too much time in traffic jams.

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