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        • Security Group - Virtual Private Cloud

          Security Group - Virtual Private Cloud

          Security Group Security Group and Security Group Rule Overview Default Security Groups Security Group Examples Common ECS Ports Managing a Security Group Managing Security Group Rules Managing Instances Added to a Security Group Security Group Migration Examples Parent Topic: Access

          Help > Virtual Private Cloud > User Guide > Access Control
        • Virtual IP Address Overview - Virtual Private Cloud

          Virtual IP Address Overview - Virtual Private Cloud

          In this cluster, ECS-HA1 works as the active ECS and provides services accessible from the Internet using EIP-A. ECS-HA2 works as the standby ECS, with no services deployed on it. If ECS-HA1 goes down, ECS-HA2 takes over services, ensuring service continuity.

          Help > Virtual Private Cloud > User Guide > Virtual IP Address
        • How Do I Handle a VPN or Direct Connect Connection Network Failure? - Virtual Private Cloud

          How Do I Handle a VPN or Direct Connect Connection Network Failure? - Virtual Private Cloud

          Method: Log in to an ECS and ping an IP address in your on-premises data center. Parent topic: Connectivity

          Help > Virtual Private Cloud > FAQs > Connectivity
        • Region and AZ - Virtual Private Cloud

          Region and AZ - Virtual Private Cloud

          Public services, such as Elastic Cloud Server (ECS), Elastic Volume Service (EVS), Object Storage Service (OBS), Virtual Private Cloud (VPC), Elastic IP (EIP), and Image Management Service (IMS), are shared within the same region.

          Help > Virtual Private Cloud > Service Overview > Basic Concepts
        • Route Table and Route Overview - Virtual Private Cloud

          Route Table and Route Overview - Virtual Private Cloud

          This route forwards ECS traffic to the NAT gateway and then the ECSs can access the Internet using the EIP.

          Help > Virtual Private Cloud > User Guide > Route Table and Route
        • How Can I Unbind an Existing EIP from an Instance and Bind Another EIP to the Instance? - Virtual Private Cloud

          How Can I Unbind an Existing EIP from an Instance and Bind Another EIP to the Instance? - Virtual Private Cloud

          Scenario 1: Unbinding an EIP from an ECS and Binding a New EIP to the ECS Unbind an EIP. Go to the EIP list page. On the displayed page, locate the row that contains the target EIP, and click Unbind. Click Yes. Assign an EIP.

          Help > Virtual Private Cloud > FAQs > EIPs
        • Querying a Route Table - Virtual Private Cloud

          Querying a Route Table - Virtual Private Cloud

          Values: When type is ecs, the value is an ECS ID. When type is eni, the value is an extension NIC ID. When type is vip, the value is a virtual IP address. When type is nat, the value a NAT gateway ID. When type is peering, the value is a VPC peering connection ID.

          Help > Virtual Private Cloud > API Reference > VPC APIs (V1/V2) > Route Table
        • Concepts - Virtual Private Cloud

          Concepts - Virtual Private Cloud

          Public services, such as Elastic Cloud Server (ECS), Elastic Volume Service (EVS), Object Storage Service (OBS), Virtual Private Cloud (VPC), Elastic IP (EIP), and Image Management Service (IMS), are shared within the same region.

          Help > Virtual Private Cloud > API Reference > Before You Start
        • Security - Virtual Private Cloud

          Security - Virtual Private Cloud

          Can I Change the Security Group of an ECS? How Do I Configure a Security Group for Multi-Channel Protocols? Why Are Some Ports of ECSs Inaccessible?

          Help > Virtual Private Cloud > FAQs
        • Viewing the Traffic of ECSs from the Same VPC - Virtual Private Cloud

          Viewing the Traffic of ECSs from the Same VPC - Virtual Private Cloud

          ECS 2 Configure the two ECSs as follows: ECS Name: Set it as needed. In this example, the ECSs are named ECS-01 and ECS-02. ECS flavor: In this example, flow logs of the network interface attached to ECS-01 are collected. Select the ECS flavor that supports flow logs.

          Help > Virtual Private Cloud > User Guide > VPC Flow Log > VPC Flow Log Configuration Examples
        • Common Practices - Virtual Private Cloud

          Common Practices - Virtual Private Cloud

          Configuring Policy-based Routes for an ECS with Multiple Network Interfaces If an ECS has multiple network interfaces, the primary network interface can communicate with external networks by default, but the extended network interfaces cannot.

          Help > Virtual Private Cloud > Getting Started
        • Why Can't I Delete My VPCs and Subnets? - Virtual Private Cloud

          Why Can't I Delete My VPCs and Subnets? - Virtual Private Cloud

          Table 3 Common resources in subnets Product Category Service Compute Elastic Cloud Server (ECS) Bare Metal Server (BMS) Cloud Container Engine (CCE) Cloud Container Instance (CCI) Containers Application Service Mesh (ASM) Networking Elastic Load Balance (ELB) NAT Gateway VPC Endpoint

          Help > Virtual Private Cloud > FAQs > VPCs and Subnets
        • How Do I Configure a Security Group for Multi-Channel Protocols? - Virtual Private Cloud

          How Do I Configure a Security Group for Multi-Channel Protocols? - Virtual Private Cloud

          ECS Configuration The TFTP daemon determines whether a configuration file specifies the port range. If you use a TFTP configuration file that allows the data channel ports to be configurable, it is a good practice to configure a small range of ports that are not listened on.

          Help > Virtual Private Cloud > FAQs > Security
        • Querying Private IP Address Details - Virtual Private Cloud

          Querying Private IP Address Details - Virtual Private Cloud

          For example, compute:aa-bb-cc indicates that the IP address is used by an ECS in the AZ aa-bb-cc.): IP address of an ECS NIC neutron:VIP_PORT: Virtual IP address compute:subeni: IP address of a supplementary network interface neutron:LOADBALANCERV2: IP address of a shared load balancer

          Help > Virtual Private Cloud > API Reference > VPC APIs (V1/V2) > Private IP Address
        • Security Group and Security Group Rule Overview - Virtual Private Cloud

          Security Group and Security Group Rule Overview - Virtual Private Cloud

          For details about x86 ECSs, see ECS Specifications (x86). For details about Kunpeng ECSs, see ECS Specifications (Kunpeng).

          Help > Virtual Private Cloud > User Guide > Access Control > Security Group
        • Function Overview - Virtual Private Cloud

          Function Overview - Virtual Private Cloud

          If the active ECS goes down, the standby ECS becomes the active ECS and continues to provide services. Generally, ECSs use private IP addresses for internal network communication. A virtual IP address has the same network access capabilities as a private IP address.

          Help > Virtual Private Cloud > Function Overview
        • VPC and Subnet Planning - Virtual Private Cloud

          VPC and Subnet Planning - Virtual Private Cloud

          Figure 8 Connecting a VPC to an on-premises data center Helpful Link You can create a VPC and an ECS to set up an IPv4 private network on the cloud and then bind an EIP to the ECS to allow the ECS to access the Internet. For details, see Setting Up an IPv4 Network in a VPC.

          Help > Virtual Private Cloud > User Guide > VPC and Subnet
        • Adding a Security Group Rule - Virtual Private Cloud

          Adding a Security Group Rule - Virtual Private Cloud

          in to the ECS and check whether the ECS port is opened.

          Help > Virtual Private Cloud > User Guide > Access Control > Security Group > Managing Security Group Rules
        • Supplementary Network Interface - Virtual Private Cloud

          Supplementary Network Interface - Virtual Private Cloud

          Application Scenarios The number of elastic network interfaces that can be attached to each ECS is limited. If this limit cannot meet your requirements, you can attach supplementary network interfaces to elastic network interfaces.

          Help > Virtual Private Cloud > Service Overview > Basic Concepts
        • Security Group - Virtual Private Cloud

          Security Group - Virtual Private Cloud

          An ECS (ECS-A) is running in Subnet-A and associated with security group Sg-A. Security group Sg-A has a custom inbound rule to allow ICMP traffic to ECS-A from your PC over all ports.

          Help > Virtual Private Cloud > Service Overview > Basic Concepts
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