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        Help Center/Virtual Private Cloud/FAQs/VPCs and Subnets
        Updated on 2026-03-26 GMT+08:00
        View PDF

        VPCs and Subnets

        • What Is Virtual Private Cloud?
        • Which CIDR Blocks Are Available for the VPC Service?
        • How Many VPCs Can I Create?
        • Can Subnets Communicate with Each Other?
        • What Subnet CIDR Blocks Are Available?
        • Can I Change the CIDR Block of a Subnet?
        • How Many Subnets Can I Create?
        • How Do I Make the Changed DHCP Lease Time of a Subnet Take Effect Immediately?
        • How Can I Make a Domain Name in a Subnet Take Effect Immediately After Being Changed?
        • What Are the Impacts of Changing the DNS Server Addresses of a Subnet on Cloud Server Configurations?
        • Why Can't I Delete My VPCs and Subnets?
        • Can I Change the VPC of an ECS?
        • Why Is the ECS IP Address Released After the System Time Is Changed?
        • How Do I Change the DNS Server Addresses of an ECS?

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