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Why Cannot the EIP Bound to the Extension NIC of My ECS Access the Internet? Symptom Your ECS has one primary NIC and one extension NIC in the same subnet. Both the NICs have an EIP bound to access the Internet. The EIP bound to the primary NIC can access the Internet, but that bound
How Do I Mount a File System to a Linux ECS as a Non-root User? Scenarios By default, a Linux ECS only allows user root to use the mount command to mount file systems, but you can grant the permissions of root to other users. Then, such users can use the mount command to mount file
Why Cannot the Total ECS Quota Be Less Than the Number of Existing ECSs? The total ECS quota is the total number of hosts that are authorized to receive detections. When buying SecMaster, ensure that the total ECS quota is greater than or equal to the total number of hosts under the
What Do I Do If I Selected an Incorrect Image for My ECS? You can change the image for your ECS on the ECS console. Select the target ECS and click Stop in the upper left corner of the ECS list. Locate the row that contains the target ECS, choose More > Manage Image > Change OS in
Why Can't I Use the Local Computer to Connect to My Windows ECS? Symptom An error message is displayed indicating that your local computer cannot connect to the remote computer. Figure 1 Cannot connect to the remote computer Possible Causes Port 3389 of the security group on the ECS
Why Does the OS Fail to Respond When kdump Occurs on a Linux ECS? Symptom When kdump occurs on a Xen Linux ECS, the OS fails to respond and cannot be automatically recovered. For example, if you run the echo c>/proc/sysrq-trigger command to trigger kdump, this fault occurs. Figure
How Can I Transfer Files from a Local Mac to a Windows ECS? Scenarios This section describes how to use Microsoft Remote Desktop for Mac to transfer files from a local Mac to a Windows ECS. Prerequisites The remote access tool supported by Mac has been installed on the local Mac.
Can I Migrate an ECS to Another Region, AZ, or Account? After an ECS is created, it cannot be directly migrated to another region, AZ, or account. To migrate an ECS across accounts or regions, create an image using the ECS and migrate the image to the target accounts or regions. For
Why Is the Memory of an ECS Obtained by Running the free Command Inconsistent with the Actual Memory? Symptom After you create an ECS, you run the free -m command to view the ECS memory. The ECS memory is less than the memory configured during ECS creation. For example: When you are
How Can I Add ECSs Using Local Disks to an ECS Group? An ECS group logically isolates ECSs. ECSs in the same ECS group support anti-affinity and they are allocated on different hosts. You can add an ECS to an ECS group in either of the following ways: During purchase: When purchasing
Why Does the Login to My Linux ECS Using a Key File Fail? Symptom When you use the key file created during your Linux ECS creation to log in to the ECS, the login fails. Possible Causes Possible causes vary depending on the image used to create the Linux ECS. Cause 1: The image that
How Do I Query the Egress Public IP Address of My ECS? Scenarios After servers are migrated to the cloud, they usually use EIPs to access the Internet. You can log in to the management console and view the EIP bound to the ECS in the ECS list. For details, see Viewing ECS Details
How Can I Transfer Data Between a Local Computer and a Windows ECS? Method 1: Install a Data Transfer Tool Install a data transfer tool, such as FileZilla on both the local computer and the Windows ECS to transmit data. Method 2: Configure Local Disk Mapping Use MSTSC to transfer
How Do I Display the OS Name of a Target Server on the ECS Console? Symptom On the ECS console, you found that the OS name of your target server was different from the actual OS name of the server. This is a normal event resulting from a limitation of the ECS console. Possible Causes
Querying the Target Flavors to Which an ECS Flavor Can Be Changed (Discarded) Function An ECS flavor cannot be changed to certain flavors. This API is used to query the target flavors to which a specified ECS flavor can be changed. This API has been discarded. Use the API described
How Can I Back Up an RDS for SQL Server 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 Do I Configure Policy-Based Routes for an ECS with Multiple Network Interfaces? Background If a cloud server has multiple network interfaces, the primary network interface can communicate with external networks by default, but the extended network interfaces cannot. To enable
Why Are There Intermittent Interruptions When a Local Host Accesses a Website Built on an ECS? Symptom After you build a website on an ECS, some users occasionally are unable to access the website through the local network. Troubleshooting Check the local network of the user. If the
Why Can't My ECS Access the Internet Even After an EIP Is Bound? Symptom An ECS with an EIP bound cannot access the Internet. Troubleshooting Checking Whether EIPs Are Blocked or Frozen Check whether the EIP is blocked. For details, see How Do I Unblock an EIP? Check whether the EIP
Why Is My ECS Unable to Communicate at a Layer 2 or Layer 3 Network? Symptom An ECS cannot ping the gateway of the subnet where the ECS resides. Troubleshooting Locate the fault based on the following procedure. Figure 1 Troubleshooting procedure Checking Whether the ECS Has Obtained
