> For the complete documentation index, see [llms.txt](https://docs.mechcloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mechcloud.io/cloud-computing/stateless-iac/azure/examples-free-resources/network-security-group.md).

# Network Security Group

{% hint style="info" %}
**Updated**: February 13, 2026
{% endhint %}

## Creating an NSG with SSH rule

```yaml
defaults:
  resource_group: rg1

resources:
  - type: "Microsoft.Network/networkSecurityGroups"
    api_version: "2025-05-01"
    name: nsg1
    props:
      security_rules:
        - name: allow-ssh
          props:
            priority: 100
            direction: Inbound
            access: Allow
            protocol: Tcp
            source_port_range: "*"
            destination_port_range: "22"
            source_address_prefix: "{{CURRENT_IP}}/32"
            destination_address_prefix: "*"
```