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October 15, 2026:
PostgreSQL 19 RC 1 Released!
Documentation
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PostgreSQL 11
Supported Versions:
Current
(
18
) /
17
/
16
/
15
/
14
Development Versions:
19
/
devel
Unsupported versions:
13
/
12
/
11
/
10
/
9.6
/
9.5
/
9.4
/
9.3
/
9.2
/
9.1
/
9.0
/
8.4
/
8.3
/
8.2
/
8.1
/
8.0
/
7.4
/
7.3
/
7.2
/
7.1
This documentation is for an unsupported version of PostgreSQL.
You may want to view the same page for the
current
version, or one of the other supported versions listed above instead.
Chapter 18. Server Setup and Operation
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Part III. Server Administration
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Chapter 18. Server Setup and Operation
Table of Contents
18.1. The
PostgreSQL
User Account
18.2. Creating a Database Cluster
18.2.1. Use of Secondary File Systems
18.2.2. Use of Network File Systems
18.3. Starting the Database Server
18.3.1. Server Start-up Failures
18.3.2. Client Connection Problems
18.4. Managing Kernel Resources
18.4.1. Shared Memory and Semaphores
18.4.2. systemd RemoveIPC
18.4.3. Resource Limits
18.4.4. Linux Memory Overcommit
18.4.5. Linux Huge Pages
18.5. Shutting Down the Server
18.6. Upgrading a
PostgreSQL
Cluster
18.6.1. Upgrading Data via
pg_dumpall
18.6.2. Upgrading Data via
pg_upgrade
18.6.3. Upgrading Data via Replication
18.7. Preventing Server Spoofing
18.8. Encryption Options
18.9. Secure TCP/IP Connections with SSL
18.9.1. Basic Setup