Virtual Private Cloud (VPC) overview

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Available in VPC

Virtual Private Cloud (VPC) is a private network for your exclusive use within a public cloud environment. It is logically isolated from other networks, allowing you to build a secure and easy-to-manage IT infrastructure. In addition, you can implement a network environment similar to your existing data center.

Virtual Private Cloud (VPC) features

Virtual Private Cloud (VPC) offers these key features:

  • Dedicated network usage: You can use a completely logically isolated network without worrying about interference from other networks.
  • Diverse network topologies: You can create public or private subnets within a VPC to build a customized network environment. After creating a subnet, deploy resources such as servers and databases within it.
  • Robust security: Access to the network is controlled through an Access Control Group (ACG) and a Network Access Control List (Network ACL). ACG controls access at the server level, while Network ACL controls access at the subnet level.
  • Security communication with external networks: You can use Cloud Connect and Managed IPsec VPN for secure communication between your VPC and customer sites. If you wish to use these features, please Contact Support.
  • Internal communication between VPCs: You can use VPC Peering to communicate with other VPCs. This improves cost-efficiency because communication occurs over the internal network without using public IPs.
  • Service Function Chain (SFC): Configure virtual appliance images from specialized network or security vendors as a Service Function Chain in your VPC. This allows you to use the same level of functionality in the cloud as in a legacy environment. Additionally, when operating multiple VPCs, you can ensure efficient security management by designating a separate, dedicated security VPC.

Virtual Private Cloud (VPC) user guide

Virtual Private Cloud (VPC) is available in Korea and Singapore Regions. Because available services vary by Region, the user guides are organized by Region as follows:

Korea Region

Use this guide to get the most out of Virtual Private Cloud (VPC) in the Korea Region.

Singapore Region

Use this guide to get the most out of Virtual Private Cloud (VPC) in the Singapore Region.

Japan Region

Use this guide to get the most out of Virtual Private Cloud (VPC) in the Japan Region.

Virtual Private Cloud (VPC) related resources

Beyond the user guide, these resources provide additional context and support for Virtual Private Cloud (VPC). Whether you're considering Virtual Private Cloud (VPC) or need in-depth information for development, marketing, and other purposes, these resources can help:

Virtual Private Cloud (VPC) FAQs

You can get your questions answered quickly by referring to the answers in the FAQs before reading the user guide. If you cannot find the answers you need in the FAQs, see the user guide for more information.

Q. What is the Deny-Allow Group feature in a Network ACL?
A. A Deny-Allow Group is a collection of IP addresses that can be used as an access source or destination point when configuring rules in a Network ACL. This feature was introduced to improve upon the limitations of existing Network ACL rules, which made detailed access control difficult by only allowing IP addresses or network ranges.

Q. What are the service limits of a Deny-Allow Group?
A. You can create up to 4 Deny-Allow Groups per VPC, and each Deny-Allow Group can contain up to 100 IP addresses. Additionally, an IP address cannot be registered in more than one Deny-Allow Group.