Create a Public Load balancer

In this section, you'll create a virtual network and subnet.

In the search box at the top of the portal, enter Virtual network. Select Virtual Networks in the search results.
In Virtual networks, select + Create.

In Create virtual network, enter or select this information in the Basics tab:

TABLE 1
Setting	Value
Project Details
Subscription	Select your Azure subscription
Resource Group	Select Create new. In Name enter CreatePubLBQS-rg. Select OK.
Instance details
Name	Enter myVNet
Region	Select (Europe) West Europe

Select the IP Addresses tab or select the Next: IP Addresses button at the bottom of the page.
In the IP Addresses tab, enter this information:
TABLE 2
Setting Value
IPv4 address space Enter 10.1.0.0/16
Under Subnet name, select the word default.
In Edit subnet, enter this information:
TABLE 3
Setting Value
Subnet name Enter myBackendSubnet
Subnet address range Enter 10.1.0.0/24
Select Save.
Select the Security tab.
Under BastionHost, select Enable. Enter this information:
TABLE 4
Setting Value
Bastion name Enter myBastionHost
AzureBastionSubnet address space Enter 10.1.1.0/27
Public IP Address Select Create new.
For Name, enter myBastionIP.
Select OK.
Select the Review + create tab or select the Review + create button.
Select Create.

TABLE 2
Setting	Value
IPv4 address space	Enter 10.1.0.0/16

TABLE 3
Setting	Value
Subnet name	Enter myBackendSubnet
Subnet address range	Enter 10.1.0.0/24

TABLE 4
Setting	Value
Bastion name	Enter myBastionHost
AzureBastionSubnet address space	Enter 10.1.1.0/27
Public IP Address	Select Create new. For Name, enter myBastionIP. Select OK.

Create NAT gateway

In this section, you'll create a NAT gateway for outbound internet access for resources in the virtual network.

In the search box at the top of the portal, enter NAT gateway. Select NAT gateways in the search results.
In NAT gateways, select + Create.

In Create network address translation (NAT) gateway, enter or select the following information:

TABLE 5
Setting	Value
Project details
Subscription	Select your subscription.
Resource group	Select CreatePubLBQS-rg.
Instance details
NAT gateway name	Enter myNATgateway.
Availability zone	Select None.
Idle timeout (minutes)	Enter 15.

Select the Outbound IP tab or select the Next: Outbound IP button at the bottom of the page.
In Outbound IP, select Create a new public IP address next to Public IP addresses.
Enter myNATGatewayIP in Name in Add a public IP address.
Select OK.
Select the Subnet tab or select the Next: Subnet button at the bottom of the page.
In Virtual network in the Subnet tab, select myVNet.
Select myBackendSubnet under Subnet name.
Select the blue Review + create button at the bottom of the page, or select the Review + create tab.
Select Create.

Create load balancer

In this section, you'll create a zone redundant load balancer that load balances virtual machines. With zone-redundancy, one or more availability zones can fail and the data path survives as long as one zone in the region remains healthy.

During the creation of the load balancer, you'll configure:

Frontend IP address
Backend pool
Inbound load-balancing rules

In the search box at the top of the portal, enter Load balancer. Select Load balancers in the search results.
In the Load balancer page, select Create.

In the Basics tab of the Create load balancer page, enter, or select the following information:

TABLE 6
Setting	Value
Project details
Subscription	Select your subscription.
Resource group	Select CreatePubLBQS-rg.
Instance details
Name	Enter myLoadBalancer
Region	Select (Europe) West Europe.
Type	Select Public.
SKU	Leave the default Standard.
Tier	Leave the default Regional.

Select Next: Frontend IP configuration at the bottom of the page.
In Frontend IP configuration, select + Add a frontend IP.
Enter LoadBalancerFrontend in Name.
Select IPv4 or IPv6 for the IP version.
Note
IPv6 isn't currently supported with Routing Preference or Cross-region load-balancing (Global Tier).
Select IP address for the IP type.
Note
For more information on IP prefixes, see Azure Public IP address prefix.
Select Create new in Public IP address.
In Add a public IP address, enter myPublicIP for Name.
Select Zone-redundant in Availability zone.
Note
In regions with Availability Zones, you have the option to select no-zone (default option), a specific zone, or zone-redundant. The choice will depend on your specific domain failure requirements. In regions without Availability Zones, this field won't appear.
For more information on availability zones, see Availability zones overview.
Leave the default of Microsoft Network for Routing preference.
Select OK.
Select Add.
Select Next: Backend pools at the bottom of the page.
In the Backend pools tab, select + Add a backend pool.
Enter myBackendPool for Name in Add backend pool.
Select myVNet in Virtual network.
Select NIC or IP Address for Backend Pool Configuration.
Select IPv4 or IPv6 for IP version.
Select Add.
Select the Next: Inbound rules button at the bottom of the page.
In Load balancing rule in the Inbound rules tab, select + Add a load balancing rule.

In Add load balancing rule, enter or select the following information:

TABLE 7
Setting	Value
Name	Enter myHTTPRule
IP Version	Select IPv4 or IPv6 depending on your requirements.
Frontend IP address	Select LoadBalancerFrontend.
Protocol	Select TCP.
Port	Enter 80.
Backend port	Enter 80.
Backend pool	Select myBackendPool.
Health probe	Select Create new. In Name, enter myHealthProbe. Select HTTP in Protocol. Leave the rest of the defaults, and select OK.
Session persistence	Select None.
Idle timeout (minutes)	Enter or select 15.
TCP reset	Select Enabled.
Floating IP	Select Disabled.
Outbound source network address translation (SNAT)	Leave the default of (Recommended) Use outbound rules to provide backend pool members access to the internet.

Select Add.
Select the blue Review + create button at the bottom of the page.
Select Create.

Create virtual machines

In this section, you'll create three VMs (myVM1, myVM2 and myVM3) in three different zones (Zone 1, Zone 2, and Zone 3).

These VMs are added to the backend pool of the load balancer that was created earlier.

In the search box at the top of the portal, enter Virtual machine. Select Virtual machines in the search results.
In Virtual machines, select + Create > Virtual machine.

In Create a virtual machine, type or select the values in the Basics tab:

TABLE 8
Setting	Value
Project Details
Subscription	Select your Azure subscription
Resource Group	Select CreatePubLBQS-rg
Instance details
Virtual machine name	Enter myVM1
Region	Select (Europe) West Europe
Availability Options	Select Availability zones
Availability zone	Select 1
Image	Select Windows Server 2019 Datacenter - Gen1
Azure Spot instance	Leave the default of unchecked.
Size	Choose VM size or take default setting
Administrator account
Username	Enter a username
Password	Enter a password
Confirm password	Reenter password
Inbound port rules
Public inbound ports	Select None

Select the Networking tab, or select Next: Disks, then Next: Networking.

In the Networking tab, select or enter:

TABLE 9
Setting	Value
Network interface
Virtual network	myVNet
Subnet	myBackendSubnet
Public IP	Select None.
NIC network security group	Select Advanced
Configure network security group	Select Create new. In the Create network security group, enter myNSG in Name. Under Inbound rules, select +Add an inbound rule. Under Service, select HTTP. Under Priority, enter 100. In Name, enter myNSGRule Select Add Select OK
Load balancing
Place this virtual machine behind an existing load-balancing solution?	Select the check box.
Load balancing settings
Load-balancing options	Select Azure load balancing
Select a load balancer	Select myLoadBalancer
Select a backend pool	Select myBackendPool

Select Review + create.
Review the settings, and then select Create.
Follow the steps 1 through 7 to create two more VMs with the following values and all the other settings the same as myVM1:
TABLE 10
Setting VM 2 VM 3
Name myVM2 myVM3
Availability zone 2 3
Network security group Select the existing myNSG Select the existing myNSG

TABLE 10
Setting	VM 2	VM 3
Name	myVM2	myVM3
Availability zone	2	3
Network security group	Select the existing myNSG	Select the existing myNSG

Install IIS

In the search box at the top of the portal, enter Virtual machine. Select Virtual machines in the search results.
Select myVM1.
On the Overview page, select Connect, then Bastion.
Select Use Bastion.
Enter the username and password entered during VM creation.
Select Connect.
On the server desktop, navigate to Windows Administrative Tools > Windows PowerShell.
In the PowerShell Window, run the following commands to:
- Install the IIS server
- Remove the default iisstart.htm file
- Add a new iisstart.htm file that displays the name of the VM:
PowerShell

# Install IIS server role
Install-WindowsFeature -name Web-Server -IncludeManagementTools

# Remove default htm file
Remove-Item C:\inetpub\wwwroot\iisstart.htm

# Add a new htm file that displays server name
Add-Content -Path "C:\inetpub\wwwroot\iisstart.htm" -Value $("Hello Batch 7 Team - This website is from " + $env:computername)

9. Close the Bastion session with myVM1.

10. Repeat steps 1 to 8 to install IIS and the updated iisstart.htm file on myVM2 and myVM3.

Test the load balancer

In the search box at the top of the page, enter Load balancer. Select Load balancers in the search results.
Find the public IP address for the load balancer on the Overview page under Public IP address.
Copy the public IP address, and then paste it into the address bar of your browser. The custom VM page of the IIS Web server is displayed in the browser.

Clean up resources:

When no longer needed, delete the resource group, load balancer, and all related resources. To do so, select the resource group CreatePubLBQS-rg that contains the resources and then select Delete.

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