{"id":40695,"date":"2021-05-14T09:48:55","date_gmt":"2021-05-14T09:48:55","guid":{"rendered":"https:\/\/www.testpreptraining.com\/tutorial\/?page_id=40695"},"modified":"2021-05-14T09:48:57","modified_gmt":"2021-05-14T09:48:57","slug":"what-is-azure-network-security-groups","status":"publish","type":"page","link":"https:\/\/www.testpreptraining.ai\/tutorial\/what-is-azure-network-security-groups\/","title":{"rendered":"What is Azure Network Security Groups?"},"content":{"rendered":"\n

Go back to Tutorial<\/a><\/strong><\/p>\n\n\n\n

In this, we will learn the Azure Network Security Groups and its rule.<\/p>\n\n\n\n

You can use an Azure network security group for filtering network traffic to and from Azure resources in an Azure virtual network. A network security group contains security rules that allow or deny inbound network traffic to, or outbound network traffic from, several types of Azure resources. However, for each rule, you can specify source and destination, port, and protocol.<\/p>\n\n\n\n

Security rules<\/strong><\/h5>\n\n\n\n

A network security group contains zero, or as many rules as desired, within Azure subscription limits. Each rule specifies the following properties:<\/p>\n\n\n\n

\"Azure
Image Source: Microsoft<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

Network security group security rules evaluate by priority using the 5-tuple information to allow or deny the traffic. You may not create two security rules with the same priority and direction. A flow record get creates for existing connections. Communication allowance or deny depends on the connection state of the flow record. The flow record allows a network security group to be stateful. However, if you specify an outbound security rule to any address over port 80, for example, it’s not necessary to specify an inbound security rule for the response to the outbound traffic. You only need to specify an inbound security rule if communication initiates externally. The opposite is also true. <\/p>\n\n\n\n

\"Practice<\/a><\/figure><\/div>\n\n\n\n
Default security rules<\/strong><\/h5>\n\n\n\n

Azure creates the following default rules in each network security group that you create:<\/p>\n\n\n\n

\"security
Image Source: Microsoft<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n
Azure platform considerations<\/strong><\/h5>\n\n\n\n