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What Should I Do If I Cannot View Data After Logging In to an ECS Using VNC? After you log in to an ECS using VNC and view data, for example, play videos or run the cat command to view large files in Linux OSs, VNC may become unavailable due to the high memory usage of the browser
What Should I Do If Executing a Driver Installation Script Failed on an ECS Running CentOS 5? Scenarios After executing the script for installing the Virtio driver on an ECS running CentOS 5, users cannot determine whether the driver has been successfully installed. This section describes
How Can I Use SCP to Transfer Files Between a Local Linux Computer and a Linux ECS? Scenarios You want to use SCP to transfer files between a local Linux computer and a Linux ECS. Procedure Log in to the management console. On the Elastic Cloud Server page, obtain the EIP bound to
How Can I Rectify the Fault That May Occur on a Linux ECS with an NVMe SSD Disk Attached? Symptom When a Linux ECS with an NVMe SSD disk attached, such as a P1 ECS, becomes faulty, you must contact the administrator to remotely rebuild the ECS again. If automatic NVMe SSD disk attachment
Why Are Disk Error Logs Printed After a Disk Attached to an ECS Is Formatted with the ext4 File System? Symptom When a VBD disk is attached to an ECS and the partition is in ext4 format, the following log may be displayed on the console: blk_update_request: operation not supported
What Should I Do If the One-Click Password Reset Plug-ins Installed on a Linux ECS Fail to Be Started? Scenarios The one-click password reset plug-ins installed on a Linux ECS fail to be started. Symptom When a user ran sudo sh setup.sh to install one-click password reset plug-ins
Why Can't I Obtain the Password for Logging In to My Windows ECS Authenticated Using a Key Pair? Symptom A private key cannot be used to obtain the password for logging in to a Windows ECS that is authenticated using a key pair. Possible Causes The password fails to inject using Cloudbase-Init
How Can I Use SFTP to Transfer Files Between a Local Linux Computer and a Linux ECS? Scenarios You want to use SFTP to transfer files between a local Linux computer and a Linux ECS. The following uses CentOS as an example. Procedure Log in to the ECS as user root. Run the following
How Can I Use OBS to Transfer Files from a Local Windows Computer to a Windows ECS? Scenarios Through an intranet, an ECS can access OBS in which any type of data can be stored. After storing data such as images and videos in OBS, you can access OBS from the ECS and download data
How Can I Use WinSCP to Transfer Files from a Local Windows Computer to a Linux ECS? Scenarios WinSCP can be used to securely copy-paste files across local and remote computers. Compared with FTP, WinSCP allows you to use a username and password to access the destination server without
How Can I Use FTP to Transfer Files Between a Local Linux Computer and a Linux ECS? Scenarios You want to use FTP on a local Linux computer to transfer files between the computer and a Linux ECS. Prerequisites You have enabled FTP on the target ECS. If you have not enabled FTP, check
Why Does My ECS Running CentOS 7 Fail to Obtain an IP Address Using dhclient? Symptom After an ECS was started, it failed to obtain an IP address because dhclient did not run. Possible Cause The possible causes are as follows: NetworkManager is not configured to start at boot. The
How Can I Resolve ECS Login Failures Due to Corrupt /etc/passwd? Scenarios This section describes how to handle login failures caused by corrupt /etc/passwd on a Linux ECS. The emergency recovery solution in this section requires you to replace the corrupt /etc/passwd with the initial
What Should I Do If an ECS Cannot Connect to an RDS DB Instance Through a Private Network? Perform the following steps to identify the problem: Check whether the ECS and RDS DB instances are located in the same VPC. If they are in the same VPC, go to 2. If they are in different VPCs
Why Are Two deleteMetadata Traces Generated When I Buy an ECS in Pay-per-Use or Yearly/Monthly? During ECS creation, metadata is used to store temporary information. When the creation is finished, the information is automatically deleted. Thus, two traces named deleteMetadata are
What Is the Relationship Between a VPC, Public NAT Gateway, EIP Bandwidth, and ECS? A VPC is a secure, isolated, logical network environment. A public NAT gateway enables ECSs in a VPC to access the Internet. EIP is a service that provides valid static IP addresses on the Internet
What Should I Do If an ECS Error Occurs When I Create and Deploy a Component on a VM? Symptom The ECS service may be unavailable when you create and deploy a component on a ServiceStage VM. For example, calling the ECS interface times out during component deployment, and the following
What Should I Do If the ECS and DDS Are Deployed in Different VPCs and They Cannot Communicate with Each Other? Change the VPC hosting the ECS to the same as that hosting the DDS by referring to Changing a VPC. Create a VPC peering connection. For details, see VPC Peering Connection
What Should I Do If an ECS Cannot Connect to an RDS DB Instance Through a Private Network? Perform the following steps to identify the problem: Check whether the ECS and RDS DB instances are located in the same VPC. If they are in the same VPC, go to 2. If they are in different VPCs
Can I Change the Specifications Defined by a Private Image When I Use the Image to Create an ECS? Yes. You can specify the CPU, memory, bandwidth, system and data disks of the ECS you are creating. The system disk must be smaller than 1,024 GB but no less than the system disk capacity
