Azure Classroom notes 22/Oct/2023

Azure VNet Contd

• Lets create a virtual network in a region
  • name: ntier
  • cidr range (address space): 192.168.0.0/22
• We will be having 4 subnets
  • web: 192.168.0.0/24
  • app: 192.168.1.0/24
  • db: 192.168.2.0/24
  • mgmt: 192.168.3.0/24
• Portal: Refer Here
  
  
• When we try to create a vm in one of the subnets a nic is created. There will generally be Network Security Group attached to nic.
  
• If we need to access publically, then the nic will be associated with public ip address
  
• Now lets try to create a free azure vm with focus on networking
  
  
• Now lets focus on networking blade of Azure VM
  
• Now we were able to ssh into vm

ssh <username>@<publicip>

• We have checked the vm gets internet
• Now lets add one more vm into app subnet but lets not give public ip.
  
  
• In Azure vnets by default all internal communication is allowed by nsg
• In Azure when we create subnet the size of subnet is 2^n-5 Refer Here
• Refer Here for Azure Vnet faq