Control: 4.3.4 Ensure server parameter 'log_disconnections' is set to 'ON' for PostgreSQL Database Server

Description

Enable log_disconnections on PostgreSQL Servers.

Enabling log_disconnections helps PostgreSQL Database to Logs end of a session, including duration, which in turn generates query and error logs. Query and error logs can be used to identify, troubleshoot, and repair configuration errors and sub-optimal performance.

Remediation

From Azure Portal

From Azure Home select the Portal Menu.
Go to Azure Database for PostgreSQL servers.
For each database, click on Server parameters.
Search for log_disconnections.
Click ON and save.

From Azure CLI

Use the below command to update log_disconnections configuration.

az postgres server configuration set --resource-group <resourceGroupName> --server-name <serverName> --name log_connections --value on

From Powershell

Use the below command to update log_disconnections configuration.

Update-AzPostgreSqlConfiguration -ResourceGroupName <ResourceGroupName> - ServerName <ServerName> -Name log_disconnections -Value on

Default Value

By default log_disconnections is disabled (set to off).

Usage

Run the control in your terminal:

powerpipe control run azure_compliance.control.cis_v200_4_3_4

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe control run azure_compliance.control.cis_v200_4_3_4 --share

SQL

This control uses a named query:

postgres_db_server_log_disconnections_on