AZ 104 Microsoft Azure Administrator Day - 4 Bootcamp

 What is Azure Load Balancer?

The load balancer is used to distribute the incoming traffic to the pool of virtual machines. It stops routing the traffic to a failed virtual machine in the pool. In this way, we can make our application resilient to any software or hardware failures in that pool of virtual machines.

Microsoft Azure, formerly called Windows Azure, is the public cloud computing platform from Microsoft. Azure offers a range of cloud services for computer, networking, analytics, and storage.


Features of Azure load balancer

Azure Load Balancer

  • Load Balancing: Azure load balancer uses a 5-tuple hash composed of source IP, source port, destination IP, destination port, and protocol. We can configure a load balancing role within the load balancer in such a way based on the source port and source IP address from where the traffic is originating.
  • Port forwarding: Load balancer also has port forwarding capability if we have a pool of web servers, and we don't want to associate public IP address for each web server in that pool. If we're going to carry out any maintenance activities, you need to RDP into those Web servers having a public IP address on that web servers.
  • Application agnostic and transparent: Load balancer doesn't directly interact with TCP or UDP or the application layer. We can route the traffic based on URL or multi-site hosting, and then we can go for the application gateway.
  • Automatic reconfiguration: Load balancer can reconfigure itself when we scale up or down instances. So, if we are adding more virtual machines into the backend pool, automatically load balancer will reconfigure.
  • Health probes: As we discussed earlier, the load balancer can recognize any failed virtual machines in the backend pool and stop routing the traffic to that particular failed virtual machine. It will recognize using health probes we can configure a health probe to determine the health of the instances in the backend pool.
  • Outbound connection: All the outbound flows from a private IP address inside our virtual network to public IP addresses on the Internet can be translated to a frontend IP of the load balancer.

Configuration elements of Load Balancer

  • Front-end IP configuration: It is the IP address to which the incoming traffic will initially come to, and Azure load balancer can have one or more front end IP addresses. They are sometimes also called as virtual IPs.
  • Back-end address pool: These are the pool of virtual machines to which the traffic will eventually go to.
  • Load balancing rules: A load balancing rule is simply a mapping between the front end IP configuration and back-end address pool.
  • Probes: Probes enable us to keep track of the health of VM instances. If a health probe files, the VM instance will be taken out of rotation automatically.
  • Inbound & Outbound NAT rules: NAT rules defining the inbound traffic flowing through the front end IP and distributes to the backend IP. Outbound rules will transmit VM private IP to load balancer public IP.

Creating Azure Load Balancer

Step1: Go to the Azure portal, and click on create a Resource. After that, type-in Load Balancer, and click on it.

Azure Load Balancer

Step 2: You are now on the Load Balancer creation page. Fill all the required details as the figure below. And click on review + create.

Azure Load Balancer
Azure Load Balancer

Step 3: You will be redirected to the review page. Check all the details and click on Create.

Azure Load Balancer

Your Load Balancer is now created.

Azure Load Balancer


Do Follow and Join the community :-

Meetup: Azure Developer Community Dehradun (Dehra Dun, India) | Meetup

Comments

Post a Comment

Popular posts from this blog

Microsoft Azure AZ-104 Virtual Machine Day-5 Bootcamp

Image
 What is a Azure virtual machine? Azure VMs are one of several types of on-demand, scalable computing resources that Azure offers. With VMs, you have total control over the configuration and can install anything you need to perform the work. You don't need to purchase physical hardware when you need to scale or extend your datacenter. Finally, Azure provides additional services to monitor, secure, and manage updates and patches to the OS. Azure Virtual machine will let us create and use virtual machines in the cloud as Infrastructure as a Service. We can use an image provided by Azure, or partner, or we can use our own to create the virtual machine. Virtual machines can be created and managed using: Azure Portal Azure PowerShell and ARM templates Azure CLI Client SDK's REST APIs Features and Capabilities Azure Virtual Machine Scale Sets Azure Virtual Machine Scale Sets  enable users to manage and scale up to thousands of virtual machines on both Windows and Linux platforms. Cus
Read more

AZ 104 Microsoft Azure Administrator Day - 3 Bootcamp

Image
Introduction Azure Tables Azure Tables are structured, schema-less NoSQL data stores in the cloud. Tables are commonly used to store flexible datasets such as user data for a web application and other kinds of metadata. In addition to Tables, Microsoft has other database offerings such as their premium NoSQL  Cosmos DB  as well as many others  SQL and NoSQL solutions. The differences between Azure Tables and Azure Cosmos DB are outlined .   What is Azure Storage Tables?   They are a NoSQL key-value store for rapid development using massive semi-structured datasets Azure Storage Tables as key-value data set that you can query vs. Azure Storage Blobs which are typically files. # Getting Started Go ahead and open the Azure Portal and click  Create a Resource  and select  Azure Storage . We'll keep it simple as shown below to get started. Once complete, go into the resource and look under  Services . Go ahead and click on  Tables  and you could create a new table through the portal as
Read more