Control: 5.2.6 [LEGACY]Ensure server parameter 'log_connections' is set to 'ON' for PostgreSQL single Server

Description

Enable log_connections on PostgreSQL single servers.

NOTE: This recommendation currently only applies to Single Server, not Flexible Server. See additional information below for details about the planned retirement of Azure PostgreSQL Single Server.

Enabling log_connections helps PostgreSQL Database to log attempted connection to the server, as well as successful completion of client authentication. Log data can be used to identify, troubleshoot, and repair configuration errors and suboptimal performance.

Remediation

From Azure Portal

1. Login to Azure Portal using https://portal.azure.com.
2. Go to Azure Database for PostgreSQL servers.
3. For each database, under Settings, click Server parameters.
4. In the filter bar, type log_connections.
5. Set log_connections to ON.
6. Click Save.

From Azure CLI

Use the below command to update log_connections 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_connections configuration.

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

Default Value

By default log_connections is enabled (set to on).