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Why Does the System Display Error Code 0x1104 When I Log In to a Windows ECS? Symptom The system displays an error message indicating that a protocol error (code: 0x1104) is detected when you use MSTSC to access an ECS running Windows Server 2008. Figure 1 Protocol error (code: 0x1104
Why Does the System Display Error Code 122.112... When I Log In to a Windows ECS? Symptom The system displays error 122.112... when you use RDC to locally access an ECS running Windows Server 2012. The ECS is frequently disconnected and the Windows login process is unexpectedly interrupted
How Can I Obtain the Mapping Between Disk Partitions and Disk Devices on a Windows ECS? This section uses an ECS running Windows Server 2019 64-bit as an example to describe how to obtain the mapping between disk partitions and disk devices. For KVM or QingTian instances, see How
How Can I Obtain the Mapping Between Disk Partitions and Disk Devices on a Linux ECS? For a Xen ECS running Linux, its disk partitions correspond to disk devices. This section uses a Linux ECS running Red Hat Enterprise Linux 7 as an example to describe how to obtain the mapping between
What Should I Do If NIC Flapping Occurs After My ECS Specifications Are Modified? Symptom Take a Linux ECS as an example. After the user modified ECS specifications and ran the ifconfig command, the user found that the original eth0 and eth1 NICs were changed to eth2 and eth3 NICs
Migrating the System and Data Partitions of a Windows Server to a Huawei Cloud ECS Overview On a Huawei Cloud ECS, the system disk usually has a single partition which is the system partition, and the data disks are separated from the system disk as shown in Figure
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
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
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 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 I Can't Connect to My ECS (MySQL) Instance? Error message: Access denied for user 'user_name'@'100.xxx.xx.xx' (using password: YES) Error cause: The username or password of the ECS-hosted database is incorrect. Solution: Check whether the username and password
What Should I Do If an ECS Cannot Connect to an RDS for MariaDB Instance over a Private Network? Perform the following steps to identify the problem: Check whether the ECS and RDS for MariaDB instance are located in the same VPC. If they are in the same VPC, go to 2. If they are in
What Should I Do If an ECS Cannot Connect to an RDS for PostgreSQL Instance Through a Private Network? Perform the following steps to identify the problem: Check whether the ECS and RDS for PostgreSQL instance are located in the same VPC. If they are in the same VPC, go to 2. If they
What Should I Do If I Can't Connect to My ECS (PostgreSQL) Instance? Error message: Connection refused (Connection refused). Error cause: The port number of the self-built database is incorrect, or the network is disconnected. Solution: Ensure that the port number of the self-built
How Do I Change Default DNS Servers of an ECS to Huawei Cloud Private DNS Servers? Huawei Cloud provides private DNS servers for domain name resolution. ECSs use public domain names to access the Internet, but use private domain names to access cloud services like OBS and SMN, with
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
Is There Any Difference Between the Image Created from a CSBS/CBR Backup and That Created from an ECS? No. You can create a full-ECS image from an ECS, a CSBS backup, or a CBR backup. When you create a full-ECS image from an ECS, the system first creates a backup for the ECS and then
