# Cis Azure Database 6.3

> Ensure 'Public Network Access' is 'Disabled' for Azure Database for PostgreSQL

- Skill: `cyberstrikeus/cis-azure-database-6-3` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-azure-database-6-3`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-azure-database-6-3/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: cyberstrikeus (https://skillmd.com/u/cyberstrikeus)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cyberstrikeus/cis-azure-database-6-3

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# 6.3 Ensure 'Public Network Access' is 'Disabled' for Azure Database for PostgreSQL (Automated)

## Profile Applicability

- Level 2

## Description

Setting public networks to disabled prevents requests from the public internet.

## Rationale

Disabling public network access prevents Azure Database for PostgreSQL servers from communicating with the public internet and requires the use of Private endpoints for granular network control and segmentation.

## Impact

Disabling 'Public Network Access' forces the requirement of the use of Private Endpoints for network connectivity which will require some additional consideration from a network architecture perspective and will introduce cost based on the inbound/outbound data being processed by the Private Endpoint.

## Audit Procedure

### Audit from Azure Portal

1. From `Azure Database for PostgreSQL` select the database you wish to audit.
2. In the left column expand `> Settings`.
3. Select `Networking`.
4. Ensure that Public network access is `not selected`.

### Audit from PowerShell

Run the following command with the identifying details for your subscription:

```powershell
Get-AzPostgreSqlFlexibleServer -name <servername> -ResourceGroupName <resourcegroupname> | Select-Object -property NetworkPublicNetworkAccess
```

Ensure that Public network access is `Disabled`.

### Audit from Azure Policy

Policy ID: `b52376f7-9612-48a1-81cd-1f0e2bc4b3e5`
Name: 'Public network access should be disabled for PostgreSQL flexible servers'

## Expected Result

Public network access should be `Disabled`.

## Remediation

### Remediate from Azure Portal

1. From `Azure Database for PostgreSQL` select the database you wish to audit.
2. In the left column expand `> Settings`.
3. Select `Networking`.
4. Uncheck/deselect the `Public network access` option.
5. Click `Save`.

### Remediate from PowerShell

```powershell
Update-AzPostgreSqlFlexibleServer -name <servername> -ResourceGroupName <resourcegroupname> -PublicNetworkAccess "Disabled"
```

## Default Value

By default, Public network access is enabled for Azure Database for PostgreSQL.

## References

1. https://learn.microsoft.com/en-us/azure/postgresql/flexible-server/concepts-networking

## Profile

- Level 2