A cloud administrator needs to control the connections between a group of web servers and database servers as part of the financial application security review. Which of the following would be the BEST way to achieve this objective?
A cloud administrator needs to control the connections between a group of web servers and database servers as part of the financial application security review. Which of the following would be the BEST way to achieve this objective?
To control the connections between a group of web servers and database servers, creating a network security group (NSG) is the best approach. NSGs are specifically designed to filter inbound and outbound network traffic to and from Azure resources, allowing you to define security rules that control traffic based on source and destination IP addresses, ports, and protocols. This provides granular traffic control and enhances security between the groups of servers.
The BEST way to control the connections between a group of web servers and database servers for a financial application in a cloud environment is to use **Network Security Groups (NSGs).** Here's why: 1. **Network Security Groups (NSGs):** NSGs are a fundamental component of network security in Microsoft Azure, but similar concepts exist in other cloud platforms as well. NSGs allow you to filter network traffic to and from network interfaces, VMs, or subnets based on rules that you define. 2. **Granular Control:** NSGs provide granular control over network traffic, allowing you to permit or deny specific types of traffic between resources. You can define rules that allow traffic from your web servers to your database servers on the specific ports and protocols required for your financial application.
3. **Segmentation:** By creating separate NSGs for different groups of resources, like web servers and database servers, you can control traffic between them. This is crucial for ensuring that only authorized communication occurs, enhancing security. 4. **Ease of Management:** NSGs are relatively easy to configure and manage through the cloud provider's portal or APIs. You can define, modify, and monitor rules as needed. In contrast, the other options mentioned (directory security groups, resource groups, and separate VLANs) are not as suitable for controlling network traffic between specific groups of servers within a cloud environment. Directory security groups are typically used for access control within Active Directory, resource groups are organizational containers for Azure resources, and VLANs are a networking concept more commonly associated with on-premises environments rather than cloud services.
D. Create a network security group Explanation: Network Security Group (NSG): Purpose: NSGs are specifically designed to control inbound and outbound network traffic to and from Azure resources. They allow you to define security rules that control traffic based on source and destination IP addresses, ports, and protocols.
You can use an Azure network security group to filter network traffic between 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. For each rule, you can specify source and destination, port, and protocol.