Preparing Required Resources
Overview
Before creating a DCS instance, prepare the required resources, including a VPC, a security group, security group rules, and a subnet. Each DCS instance is deployed in a VPC and bound to a specific subnet and security group, which provide an isolated virtual network environment and security protection policies which you can easily configure and manage.
If you already have a VPC, subnet, and security group, you can use them for all DCS instances you subsequently create.
Required Resources
The following table lists the resources required by a DCS instance.
Resource |
Requirement |
Operations |
---|---|---|
VPC and subnet |
Different DCS instances can use the same or different VPCs and subnets based on site requirements. Note the following when creating a VPC and subnet:
|
For details on how to create a VPC and subnet, see Creating a VPC. If you need to create and use a new subnet in an existing VPC, see Creating a Subnet for the VPC. |
Security group
NOTE:
Security groups are required only by DCS Redis 3.0, 6.0 professional, and Memcached instances. |
Different DCS instances can use the same security group or different security groups. Note the following when creating a security group:
|
For details on how to create a security group, see Creating a Security Group. For details on how to add rules to a security group, see Adding a Security Group Rule. |
(Optional) EIP
NOTE:
EIPs are supported only by DCS Redis 3.0 instances. |
If you want to access DCS through a public network, assign an EIP. |
For details on how to assign an EIP, see Assigning an EIP. |
Direction |
Protocol |
Port |
Source |
Description |
---|---|---|---|---|
Inbound |
TCP |
36379 |
0.0.0.0/0 |
Access a DCS Redis 3.0 instance (with SSL encryption enabled) through a public network. |
Inbound |
TCP |
6379 |
0.0.0.0/0 |
Access a DCS Redis 3.0 instance (with SSL encryption disabled) through a public network. |
Inbound |
TCP |
6379 |
0.0.0.0/0 |
Access a DCS Redis 3.0 or 6.0 professional instance in a private network. (SSL encryption is not supported.) |
Inbound |
TCP |
11211 |
0.0.0.0/0 |
Access a DCS Memcached instance. |
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