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Microsoft’s Network Security Perimeter (NSP), launched in November 2024, represents a significant advancement in securing Azure networks. NSP simplifies and strengthens the security of Azure resources by consolidating multiple security measures into a unified ruleset.
Read the full article here:
🔗 Securing Azure Networks with Network Security Perimeter
You Should Know:
Key Azure NSP Commands & Configurations
1. Enable NSP on Azure Virtual Network:
Connect to Azure Connect-AzAccount Enable NSP for a virtual network Set-AzVirtualNetwork -Name "YourVNet" -ResourceGroupName "YourRG" -NetworkSecurityPerimeter "NSP-Config"
2. Apply NSP Rules via Azure CLI:
Create an NSP profile az network security-perimeter profile create --name "NSP-Profile" --resource-group "YourRG" Link NSP to a subnet az network security-perimeter link create --name "NSP-Link" --profile-name "NSP-Profile" --vnet-name "YourVNet" --subnet "Subnet1"
3. Verify NSP Enforcement:
Check NSP association status az network security-perimeter link show --name "NSP-Link" --profile-name "NSP-Profile" --resource-group "YourRG"
4. Audit NSP Logs in Azure Monitor:
AzureDiagnostics | where Category == "NetworkSecurityPerimeter" | summarize count() by OperationName
5. Automate NSP with ARM Template:
{
"type": "Microsoft.Network/networkSecurityPerimeters",
"apiVersion": "2024-11-01",
"name": "NSP-Config",
"properties": {
"securityRules": [
{
"name": "BlockExternalRDP",
"priority": 100,
"direction": "Inbound",
"access": "Deny",
"protocol": "TCP",
"destinationPortRange": "3389"
}
]
}
}
What Undercode Say:
Azure NSP is a game-changer for cloud security, providing centralized enforcement of network policies. To maximize its potential:
– Monitor NSP logs for anomalies.
– Automate rule deployment via Infrastructure-as-Code (IaC).
– Combine with NSGs for layered security.
Linux Admins: Use `curl` to interact with Azure REST API for NSP:
curl -X GET -H "Authorization: Bearer $(az account get-access-token --query accessToken -o tsv)" "https://management.azure.com/subscriptions/{sub-id}/providers/Microsoft.Network/networkSecurityPerimeters?api-version=2024-11-01"
Windows Admins: Use `Test-NetConnection` to verify NSP blocking:
Test-NetConnection -ComputerName "ExternalIP" -Port 3389
For penetration testers, validate NSP bypass risks with:
nmap -Pn -p 3389 <TargetAzurePublicIP>
Expected Output:
A hardened Azure network with unified security policies, logged & audited via NSP.
🔗 Reference: Microsoft NSP Documentation
References:
Reported By: Pvase Azuresecurity – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
