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How Can I Apply a Private Image to an Existing ECS? You can use the image to change the ECS OS if the image is in the same region as the ECS. When you change the OS, select that image. For details about how to change the OS, see Changing the OS. Figure 1 Changing the OS If the image
How Can I Back Up a TaurusDB Database to an ECS? You can back up data to an ECS in 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 backup
What Are the Impacts on ECS Metrics If UVP VMTools Is Not Installed on ECSs? If UVP VMTools is not installed on your ECSs, Cloud Eye can still monitor the outband incoming rate and outband outgoing rate. However, it cannot monitor memory usage, disk usage, inband incoming rate, or
How Can I Enable OS Monitoring for a New ECS? Scenarios This topic describes how to ensure that the newly purchased ECS comes with the OS monitoring function. A private image can only be used in the region where it is created. If it is used in other regions, no monitoring data will
How Do I Enable the Password Login Mode for an ECS? If you disable the password login mode when binding a key pair to an ECS, you can enable the password login mode again later when you need to. Procedure The following example describes how to log in to the ECS using PuTTY and enable
How Can I Set the Input Method for a Windows ECS? Symptom The Windows ECS cannot switch the input method. Possible Causes The ctfmon.exe process is not started. The input indication icon is turned off. Solutions to a Missing Language Bar Solution 1: Check whether ctfmon.exe is started
How Do I Change the Key Pair for a Linux ECS? Symptom You changed the key pair for logging in to a Linux ECS, but you could not use the new key pair to log in to the ECS. Solution Use the password or old key to log in to the ECS and run the following commands to create a key pair:
How Do I Reset the Password for Logging In to a Linux ECS? Scenarios This section describes how to reset the password of a Linux ECS by reattaching the system disk. The method in this section only applies to x86 ECSs running CentOS 7, Ubuntu, or EulerOS. Detaching the system disk
Why Is My Linux ECS Not Booting and Going Into Emergency Mode? Symptom Your Linux ECS enters the emergency mode during startup, and displays the message "Welcome to emergency mode", asking you to enter the password of user root for maintenance. Figure 1 Emergency mode Possible Causes
Why Accessing a Website Outside the Chinese Mainland Is Slow on an ECS? Symptom Websites outside the Chinese mainland, including those in Hong Kong (China), Macao (China), Taiwan (China), and other countries and regions, may be slow to access. Generally, an international line is used
How Do I View Login Logs of a Windows ECS? Scenarios This section describes how to view the login logs of a Windows ECS. Procedure The following operations are performed on an ECS running Windows Server 2012. Log in to the Elastic Cloud ServiceECS. Choose Start > Administrative Tools
How Can I Back Up a GaussDB Database to an ECS? You can back up data to an ECS in 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 database
How Can I Configure the NTP and DNS Servers for an ECS? For Linux OSs Take the NTP and DNS servers running SUSE as an example. Configure the NTP server for the ECS. Log in to the Linux ECS. Run the following command to switch to user root: sudo su - Run the following command to edit
Why Does a Disk Attached to a Windows ECS Go Offline? Symptom A disk attached to a Windows ECS goes offline, and the system displays the message "The disk is offline because of policy set by an administrator.", as shown in Figure 1. Figure 1 Offline disk Possible Causes Windows has
How Can I Enable Virtual Memory on a Windows ECS? Enabling ECS virtual memory will deteriorate I/O performance. If the ECS memory is insufficient, increase the memory by performing the operations in Modifying Individual ECS Specifications. If you really need to enable virtual memory
Why Accessing a Website Outside the Chinese Mainland Is Slow on an ECS? Symptom Websites outside the Chinese mainland, including those in Hong Kong (China), Macao (China), Taiwan (China), and other countries and regions, may be slow to access. Generally, an international line is used
Why Does Internet Access to an ECS Deployed with FTP Fail? Symptom You cannot access a Windows ECS with FTP deployed by using an EIP. The FTP client cannot access the FTP server, and the connection times out. It takes a lot of time to upload files. Possible Causes The security group
Why Can I Remotely Access an ECS But Cannot Ping It? Symptom You can remotely access an ECS, but when you ping the EIP bound to the ECS, the ping operation fails. Possible Causes A desired inbound rule is not added for the security group, and ICMP is not enabled. Solution Log in to
Can I Change the Region or AZ After an ECS Is Purchased? Sorry, you cannot change the region after the ECS is purchased. During the ECS purchase, you are advised to select the region nearest to your services for lower network latency and quick resource access. If you need to change
Why Did I Fail to Configure an Anti-Affinity ECS Group? When you configure an anti-affinity ECS group during ECS purchase, an error occurred. This may be caused by insufficient resources. In this case, you can try the following measures: Wait for a while and try again. Purchase ECSs
