2020-12-17

This issue is the forty-seventh official release, which incorporates the following changes:

• Added restrictions in section "Notes and Constraints".
• Added a figure to illustrate the VPC peering connection.

2020-11-03

This issue is the forty-sixth official release, which incorporates the following changes:

• Adjusted sections under VPC and Subnet.
• Added sections "Adding a Secondary CIDR Block to a VPC" and "Removing a Secondary CIDR Block from a VPC".
• Added "Denying Access from a Specific IP Address" to section "Network ACL".
• Deleted FAQ "Will the EIP Bound to an ECS Be Changed After the ECS Is Stopped and Then Started?"

2020-10-23

This issue is the forty-fifth official release, which incorporates the following changes:

• Added section "Network Interface".
• Optimized sections under "Security Group".

2020-09-07

This issue is the forty-fourth official release, which incorporates the following changes:

• Added FAQ "What Should I Do If My Security Group Rules Do Not Take Effect?"
• Deleted FAQ "How Do I Handle the VPC Peering Connection Failure?"
• Modified FAQ "What Should I Do If VPCs Connected by a VPC Peering Connection Cannot Communicate with Each Other?"
• Modified FAQ "What Should I Do If a Virtual IP Address Cannot Be Pinged After Being Bound to the ECS NIC?"

2020-07-23

This issue is the forty-third official release, which incorporates the following changes:

Added parameter IP address group to security group sections and added section "IP Address Group".

2020-06-09

This issue is the forty-second official release, which incorporates the following changes:

• Added FAQ "Why Can't I Ping an ECS with Two NICs Configured?"

2020-05-20

This issue is the forty-first official release, which incorporates the following changes:

• Added FAQ "Why Does My Server Can Be Accessed from the Internet But Cannot Access the Internet?"
• Added FAQ "What Switches Can Connect to a L2CG on HUAWEI CLOUD?"
• Added FAQ "Why Is the Layer 2 Connection in the Not Connected State Even After Its Configuration Is Complete?"
• Added FAQ "Why Is the Communication Between the Cloud and On-premises Servers Unavailable Even When the Layer 2 Connection Status Is Connected?"
• Modified FAQ "What Do I Do If a Subnet Cannot Be Deleted Because It Is Being Used by Other Resources?"
• Added section "Cloning a Security Group".

2020-04-15

This issue is the fortieth official release, which incorporates the following changes:

• Added FAQ "Can an EIP Be Bound to a Cloud Resource in Another Region?"
• Added FAQ "How Do I Query the Region of My EIPs?"
• Added FAQ "Can I Transfer an EIP to Another Account?"
• Added FAQ "Can I Assign a Specific EIP?"
• Added FAQ "Will an EIP Be Changed After I Assign It?"
• Added FAQ "How Do I Switch to a Private DNS Server?"

2020-03-30

This issue is the thirty-eighth official release, which incorporates the following changes:

• Added section "Layer 2 Connection Gateway (OBT)".
• Added basic information to sections "Security Group Overview" and "Network ACL Overview".
• Added FAQ "Does a Security Group Rule or a Network ACL Rule Immediately Take Effect for Its Original Traffic After It Is Modified?"
• Added section "Billing".
• Added category "Billing and Payments" to FAQs.

2020-03-20

This issue is the thirty-eighth official release, which incorporates the following changes:

• Added FAQ "Why the IPv6 Address Manually Configured for an ECS Cannot Be Used for Communication?"
• Deleted FAQ "Which Security Group Rule Has Priority When Multiple Security Group Rules Conflict?"

2020-02-18

This issue is the fifty-first official release, which incorporates the following changes:

• Added FAQ "How Is an EIP Charged?".
• Optimized FAQ "Can I Bind One EIP to Multiple ECSs?"

2020-02-10

This issue is the thirty-sixth official release, which incorporates the following change:

Modified contents in section "Permissions Management".

2020-01-20

This issue is the thirty-fifth official release, which incorporates the following change:

Modified contents in section "Permissions Management".

2019-12-23

This issue is the thirty-fourth official release, which incorporates the following changes:

• Updated the document based on the navigation path and function changes of Subnets and Route Tables.
• Added FAQ "Can I Change the VPC of an ECS?".

2019-12-03

This issue is the thirty-third official release, which incorporates the following changes:

• Optimized description and figures in section "Service Overview".
• Updated section "Permissions Management" based on the IAM console.

2019-11-20

This issue is the thirty-second official release, which incorporates the following changes:

• Added FAQ "What Is the EIP Assignment Policy?"
• Added FAQ "What Are the Differences Between Static BGP and Dynamic BGP?"
• Added FAQ "What Is 95th Percentile Bandwidth (Enhanced) Billing?"

2019-10-30

This issue is the thirty-first official release, which incorporates the following change:

Added the appendix "Configuring the NAT64 TOA Plug-in".

2019-10-15

This issue is the thirtieth official release, which incorporates the following changes:

• Added section "VPC Flow Log (OBT)".
• Updated the screenshots of adding security group rules.
• Added FAQ "Why the Access from a Specific IP Address Is Still Allowed After a Network ACL Rule that Denies the Access from This IP Address Has Been Added?"

2019-10-09

This issue is the twenty-ninth official release, which incorporates the following changes:

• Added FAQ "Can I Bind an EIP to an ECS, to Another ECS?"
• Added FAQ "Will the EIP Bound to an ECS Be Changed After the ECS Is Stopped and Then Started?"

2019-09-26

This issue is the twenty-eighth official release, which incorporates the following change:

Optimized the sections in "VPC Peering Connection".

2019-09-12

This issue is the twenty-seventh official release, which incorporates the following changes:

• Deleted section "Deleting a VPN".
• Added FAQ "What Is the Relationship Between Bandwidth and Upload or Download Rate?"
• Added content to FAQ "What Are the Restrictions on Deleting a Security Group?"

2019-08-15

This issue is the twenty-fifth official release, which incorporates the following changes:

• Added the example of allowing external access to a specified port in the section "Security Group Configuration Examples".
• Added FAQ "How Do I Change the Bandwidth Billing Option from Bandwidth to Traffic or from Traffic to Bandwidth?"
• Added FAQ "Can I Use Multiple Bandwidth Add-On Packages with Overlapping Validity Periods?"

2019-07-30

This issue is the twenty-fifth official release, which incorporates the following change:

• Added section "Bandwidth Add-On Package".

2019-05-31

This issue is the twenty-fourth official release, which incorporates the following changes:

• Added section "Permissions Management" in "Service Overview".
• Added section "Regions and AZs" in "Service Overview".
• Added sections "Setting Up an IPv4 Network" and "Setting Up an IPv6 Network (OBT)" in "Getting Started".
• Added section "Permissions Management".

2018-12-30

This issue is the twenty-third official release, which incorporates the following changes:

• Modified the description about how to switch to the security group, network ACL, EIP, and shared bandwidth pages based on the changes made on the management console.
• Added section "Network ACL Overview".
• Added section "Network ACL Configuration Examples".

2018-11-30

This issue is the twenty-second official release, which incorporates the following changes:

• Updated the document based on changes made to the network ACL GUI.
  • Added description about how to delete multiple network ACL rules at a time and how to disassociate multiple subnets from a network ACL at a time.
  • Changed parameter Any to All.
• Modified FAQ "Why Does My ECS Fail to Obtain an IP Address?"

2018-09-30

This issue is the twenty-first official release, which incorporates the following changes:

• Added FAQ "What Are the Differences Between the Primary and Extension NICs of ECSs?"
• Added FAQ "What Do I Do If the ECS IP Address Is Lost After the ECS Time Has Been Changed?"
• Added section "IPv4 and IPv6 Dual-Stack Network (OBT)".
• Added section "Shared Data Package".
• Added FAQ "How Do I Change the Billing Mode?"
• Added description about how to create multiple subnets at a time to section Creating a VPC.
• Added description about how to add multiple network ACL rules at a time and parameter Description to section "Adding a Network ACL Rule".
• Added section "Configuring an SNAT Server".

2018-08-30

This issue is the twentieth official release, which incorporates the following changes:

• Added section IPv6 EIP (OBT)
• Added parameter Enterprise Project in sections "Creating a VPC" and "Creating a Security Group".

2018-07-30

This issue is the nineteenth official release, which incorporates the following changes:

• Changes to security groups:
  • Modified section "Replicating a Security Group Rule".
  • Added section "Modifying a Security Group Rule".
  • Modified section "Deleting a Security Group Rule".
  • Added section "Importing and Exporting Security Group Rules".
  • Added section "Adding Instances to and Removing Them from a Security Group".
• Changes to custom routes:
  • Added section "Overview".
  • Added section "Example Custom Route in a VPC".
  • Added section "Example Custom Route Outside a VPC".
• Added description about IP addresses reserved for the system in section "Creating a Subnet for the VPC".
• Deleted sections "SNAT" and "Configuring an SNAT Server", and added section "NAT Gateway".

2018-06-30

This issue is the eighteenth official release, which incorporates the following changes:

• Added description about enhanced 95th percentile bandwidth billing.
• Optimized sections under "Service Overview."
• Optimized sections under "Security Group".
• Added section "Network Planning".
• Organized FAQs by category.
• Added FAQ "What Do I Do If Some Ports in the Public Cloud Are Inaccessible?"
• Added FAQ "What Do I Do If Outbound Access Through TCP Port 25 Is Restricted?"
• Modified section "Adding a Security Group Rule".
• Modified section "Fast-Adding Security Group Rules".
• Added section "Modifying a Security Group Rule".

2018-05-30

This issue is the seventeenth official release, which incorporates the following changes:

• Added the Enterprise Project parameter.
• Added description about how to clone a security group rule.
• Added the Description field to a security group rule.
• Optimized the words used on buttons to ensure consistency.

2018-05-23

This issue is the sixteenth official release, which incorporates the following changes:

• Added section "Modifying EIP Bandwidth" and deleted section "Querying and Modifying Bandwidth".
• Modified FAQ "How Do I Access the Internet Using an EIP Bound to an Extension NIC?"
• Modified FAQ "What Should I Do If My ECS Fails to Access the Internet Using an EIP?"

2018-05-11

This issue is the fifteenth official release, which incorporates the following changes:

• Added description about the shared bandwidth.
• Changed the Validity Period and Quantity parameters in the section for assigning an EIP.
• Added section "Monitoring and Auditing".
• Modified content in FAQ "How Can I Use the Shared Bandwidth?"
• Modified content in FAQ "What Is the Bandwidth Size Range?"

2018-04-28

This issue is the fourteenth official release, which incorporates the following changes:

• Added section "Exporting VPC Information".
• Modified EIP description.
• Added FAQ "How Do I Access the Internet Using an EIP Bound to an Extension NIC?"

2018-03-30

This issue is the thirteenth official release, which incorporates the following changes:

• Added FAQ "Why Does My ECS Fail to Use Cloud-init?"
• Added FAQ "What Should I Do If My ECS Fails to Access the Internet Using an EIP?"
• Added FAQ "How Do I Handle the IB Network Failure?"
• Added FAQ "How Do I Handle the VPC Peering Connection Failure?"
• Added FAQ "What Should I Do If My ECS Fails to Communicate at the Layer 2 or Layer 3 Network?"
• Added FAQ "How Do I Handle the BMS Network Failure?"
• Added FAQ "How Do I Handle the Virtual IP Address Access Failure?"
• Added FAQ "Why Does My ECS Fail to Obtain an IP Address?"
• Added FAQ "How Do I Handle the VPN or Direct Connect Connection Network Failure?"

2018-02-28

This issue is the twelfth official release, which incorporates the following changes:

• Added FAQ "How Do I Change the EIP Billing Mode?"
• Added FAQ "How Do I Configure the Policy-Based Routing for ECSs with Multiple NICs?"
• Added FAQ "What Do I Do If Intermittent Interruption Occurs When a Local Host Accesses a Website Built on an ECS?"
• Added FAQ "What Do I Do If ECSs Using Private IP Addresses in the Same Subnet Only Support One-Way Communication?"
• Added FAQ "What Do I Do If Two ECSs in the Same VPC Cannot Communicate with Each Other or Packet Loss Occurs During the Communication Between the Two ECSs?"
• Added FAQ "What Should I Do If a Virtual IP Address Cannot Be Pinged After Being Bound to the ECS NIC?"

2018-01-30

This issue is the eleventh official release, which incorporates the following changes:

• Added description about the function of unbinding and releasing EIPs in batches.
• Added the description that the security group description can contain a maximum of 64 characters.

2017-11-30

This issue is the tenth official release, which incorporates the following change:

• Added description to indicate that subnets can be created without specifying the AZ.

2017-10-30

This issue is the ninth official release, which incorporates the following changes:

• Updated screenshots in this document based on the new management console UI style.
• Changed firewall to network ACL.
• Added description about the fast security group rule adding function.
• Added ECS security group configuration examples.

2017-09-30

This issue is the eighth official release, which incorporates the following change:

• Added description about the VPC and subnet tagging functions.

2017-08-20

This issue is the seventh official release, which incorporates the following changes:

• Updated procedures in sections "VPC and Subnet" and "Custom Route" based on changes made to the network console.
• Updated operations for VPCs, VPNs, and EIPs based on changes made to the network console.

2017-07-30

This issue is the sixth official release, which incorporates the following change:

• Changed the number of routes allowed in a route table to 100.

2017-07-20

This issue is the fifth official release, which incorporates the following changes:

Added description about the following features:

• VPC peering
• Network ACL
• Custom route

2017-04-28

This issue is the fourth official release, which incorporates the following change:

Added description about how to add DNS server addresses during subnet information modification.

2016-10-19

This issue is the third official release, which incorporates the following change:

• Updated the Help Center URL of the VPN service.

2016-07-15

This issue is the second official release, which incorporates the following changes:

• Modified the VPN authentication algorithm.
• Optimized the traffic metering function.

2016-03-14

This issue is the first official release.