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How Do I Migrate an ECS to a Different Region of Another Account? You can perform the migration in either of the following ways: Use the ECS to create a private image, migrate the image to a different region of another account, and then use the image to create a new ECS. You can migrate
How Can I Back Up an RDS for PostgreSQL Database to an ECS? You can back up data to an ECS the same way you export SQL statements. The ECS service does not have restrictions on the types of data to be backed up as long as the data complies with local laws and regulations. You can
How Can I Back Up an RDS for MariaDB Database to an ECS? You can back up data to an ECS the same way you export SQL statements. The ECS service does not have restrictions on the types of data to be backed up as long as the data complies with local laws and regulations. You can store
How Do I View and Modify ECS Security Group Rules? To enable DAS to access the self-built DB instances on ECSs, you need to add an inbound rule with the port set to 3306 (example) and source to 100.125.0.0/16 and 100.79.0.0/16. On the ECS details page, click the Security Groups tab
How Do I Find Out Who Created a Specific ECS? Background To identify the user who created a specific ECS, you can view traces recorded by CTS. Prerequisites You have enabled CTS. You have obtained the resource ID of the ECS. Procedure Log in to the CTS console. Choose Trace List in
What Should I Do If an ECS Can't Connect to a TaurusDB Instance? Perform the following steps to identify the problem: Check whether the ECS and TaurusDB instance are in the same VPC. If they are in the same VPC, go to 2. If they are in different VPCs, create an ECS in the VPC where
Why Is the ECS IP Address Lost After the System Time Changes? Symptom After the system time changes, an exclamation mark (!) is displayed for the NIC, and the ECS cannot connect to the Internet. Scenarios The operations described in this section apply to ECSs running CentOS 7 or EulerOS
How Do I Disable Login to an ECS Using SSH Password? Scenarios To ensure ECS security, you need to change the access key of an ECS regularly, or disable the SSH password login. This section describes how to disable the SSH password login. After disabling SSH password login, you can
Why Is the IP Address Lost After the System Time of an ECS Is Modified? Symptom After the system time of an ECS is modified, its IP address is lost. Possible Causes The time range you modified exceeds the DHCP lease time. The default DHCP lease time set when you create a VPC subnet
How Do I Troubleshoot an Unresponsive Website Hosted on My ECS? Symptom Websites running on an ECS might become unreachable for multiple reasons. Check whether the configurations of network, port, firewall, or security group of the ECS are correct. Fault Locating If an error is displayed
How Can I Obtain the Permission to Remotely Log In to a Windows ECS? Symptom When you connect a remote desktop to a Windows ECS, the system prompts that you need to be granted the right to sign in through Remote Desktop Services. Figure 1 Remote login right missing. Solution Open
What OSs Are Supported If I Want to Install Docker on a Linux ECS? If you want to install Docker on your Linux ECS, ensure that the OS of your ECS is supported by Docker. Table 1 lists the OSs supported by Docker. Table 1 OSs supported by Docker OS Version Location CentOS CentOS 7
What Should I Do If Emails Configured on an ECS Cannot Be Sent? Solution For the emails sent using the browser: When you use a browser to log in to your mailbox, HTTP is used, and the default port number is 80. However, SMTP is used between email servers. If you use a browser to send
Why Does Login to My ECS Using the Reset Password Fail? Scenarios You cannot use the new password that you set to log in to the ECS. Ensure that the one-click password reset plug-in is not blocked by security software. Otherwise, the one-click password reset function is unavailable
How Do I Troubleshoot an Unresponsive Website Hosted on My ECS? Symptom Websites running on an ECS might become unreachable for multiple reasons. Check whether the configurations of network, port, firewall, or security group of the ECS are correct. Fault Locating If an error is displayed
Resetting the Password for Logging In to a Windows ECS Without the Password Reset Plug-in Installed Scenarios If the password reset plug-in is not installed on a Windows ECS or a password reset does not take effect, you can reset the password following the instructions provided in
Resetting the Password for Logging In to a Linux ECS Without the Password Reset Plug-in Installed Scenarios If the password reset plug-in is not installed on a Linux ECS or a password reset does not take effect, you can reset the password following the instructions provided in this
Can I Select Another OS During ECS OS Reinstallation? No. You can only use the original image of the ECS to reinstall the OS. If you want to use a new OS image, change the OS. For details, see Changing the OS. Parent topic: OS Change
Should I Choose Windows OS or Linux OS for My ECS? Difference Between Windows OS and Linux OS The following table shows the difference between Windows OS and Linux OS. Select an OS based on your service requirements. Table 1 Differences OS Developer Language Database Windows ASP.NET
What Should I Do If the ECS Resources to Be Purchased Are Sold Out? When you are purchasing ECSs, the selected specifications may be sold out. In this case, the specifications cannot be purchased in the current region or AZ. Instance specifications vary in different regions and AZs
