Learn how to reduce your Azure costs by removing unused Public IP addresses. Find out how Azure charges for Public IP addresses and what factors to consider before deleting them.
Table of Contents
Question
Tradewind Traders has recently migrated to Azure cloud services. The company has just completed a review of its current configuration and has discovered that there is a selection of unused resources currently in existence including multiple AD accounts, multiple groups, multiple public IP addresses, and multiple network interfaces. The company wants to reduce costs to a minimum. You recommend removing the unused Public IP addresses. Will this reduce the monthly costs?
A. Yes
B. No
Answer
A. Yes
Explanation
You are charged for public IP addresses. Therefore, deleting unused public IP addresses will reduce the Azure costs.
The correct answer is A. Yes, removing the unused Public IP addresses will reduce the monthly costs for Tradewind Traders. This is because Azure charges for Public IP addresses based on the SKU and the type of IP address (dynamic or static). According to the Azure pricing details for IP addresses, the following are the charges for Public IP addresses in Azure:
- Basic SKU: For IPv4, dynamic IP addresses are charged at $0.004/hour and static IP addresses are charged at $0.0036/hour. For IPv6, dynamic IP addresses are free and static IP addresses are charged at $0.005/hour.
- Standard SKU: For IPv4 and IPv6, static IP addresses are charged at $0.005/hour.
- Global SKU: For IPv4 and IPv6, static IP addresses are charged at $0.01/hour.
- Public IP prefix: For IPv4 and IPv6, public IP prefixes are charged per IP per hour. The charge depends on the SKU and the region. For example, in the US East region, the charge is $0.006 per IP/hour for Standard SKU and $0.012 per IP/hour for Global SKU.
Therefore, by deleting the unused Public IP addresses, Tradewind Traders can save money on their Azure bill. However, they should also consider the impact of removing the Public IP addresses on their network connectivity and security. For example, if they have any resources that rely on the Public IP addresses for inbound or outbound communication, they may need to update their configuration or use alternative methods such as NAT gateways or VPN gateways.
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