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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.
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.
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
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: Set it as need. Ensure that the flavor can meet service requirements. Image: Set it as needed.
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.
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
For details about ECS types, see ECS Types. Each account can have up to 10 VPC flow logs in a region. By default, up to 400,000 flow log records can be generated for a single network interface in a collection period (10 minutes). Excess records will be discarded.
If an existing ECS in this subnet needs to use the new domain names, restart the ECS or run a command to restart the DHCP Client service or network service. NOTE: The command for updating the DHCP configuration depends on the ECS OS.
For details, see How Do I Log In to My ECS?
For details, see How Do I Log In to My ECS?
To assign a virtual IP address to an ECS, the IP address configured in allowed_address_pairs must be an existing ECS NIC IP address. Otherwise, the virtual IP address cannot be used for communication.
You can create and delete security groups, fast-add, replicate, modify, delete, import or export security group rules, view or change the security group of an ECS, and add ECSs to or remove them from a security group. You can define access rules for a security group.
To assign a virtual IP address to an ECS, the IP address configured in allowed_address_pairs must be an existing ECS NIC IP address. Otherwise, the virtual IP address cannot be used for communication.
To assign a virtual IP address to an ECS, the IP address configured in allowed_address_pairs must be an existing ECS NIC IP address. Otherwise, the virtual IP address cannot be used for communication.
To connect specific ECSs from two VPCs, each ECS must have a unique private IP address. Using a VPC Peering Connection to Connect Subnets in Two VPCs Using a VPC Peering Connection to Connect ECSs in Two VPCs VPCs in the same region VPC CIDR blocks overlap.
It maps EIP ports to ECS ports so that the ECSs in a VPC can share the same EIP and bandwidth to provide Internet-accessible services. However, DNAT does not balance traffic. Using shared EIPs to access the public network reduces the costs.
To assign a virtual IP address to an ECS, the IP address configured in allowed_address_pairs must be an existing ECS NIC IP address. Otherwise, the virtual IP address cannot be used for communication.
If the next hop is an ECS, do not use this API. Refer to Updating a Route Table. vpc_id String Yes Specifies the ID of the VPC ID requesting for creating a route.
If flow logs cannot be collected after the VPC flow log is enabled, the possible causes are as follows: If an ECS is in the stopped state, its flow log records will not be displayed. The VPC flow log quota is insufficient.
Remotely log in to an instance (such as an ECS) in a security group from an external network. Enable external servers to ping the instances in a security group to verify network connectivity.
