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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
How Can I Allow or Deny Login from Specific Users or IP Addresses to an ECS Using SSH? Scenarios This section describes how to allow or deny specific users or IP addresses to access an ECS using SSH. Constraints DenyHosts has been installed on the ECS. The sshd service should be restarted
Why Does My Linux ECS Fail to Access the Internet After Port 80 Is Allowed by the Firewall Rules? Symptom The Linux ECS cannot access the Internet after port 80 is allowed by the firewall rules. After the firewall is disabled, access to the Internet succeeds. Possible Causes The possible
What Can I Do If /etc/resolv.conf Is Restored After an ECS Running Ubuntu Is Restarted? Symptom After an ECS running Ubuntu or network-related services are restarted, the /etc/resolv.conf file is updated, and the nameserver field is restored to 127.0.0.53. Figure 1 Symptom Possible
Why Does the System Display a Message Indicating Invalid Credentials When I Attempt to Access a Windows ECS? Symptom When you use a local PC running Windows to access a Windows ECS using RDP (for example, MSTSC), the system displays a message indicating that the credentials are invalid
Why Do the Modifications to /etc/security/limits.conf Not Take Effect After the ECS Restarts? Symptom Modifications to the /etc/security/limits.conf file become invalid after the ECS restarts. Possible Causes In Linux, file /etc/security/limits.conf and directory /etc/security/limits.d
Why Does the System Display a Message Indicating Invalid Credentials When I Attempt to Access a Windows ECS? Symptom When you use a local PC running Windows to access a Windows ECS using RDP (for example, MSTSC), the system displays a message indicating that the credentials are invalid
How Can I Use FTP to Transfer Files from a Local Windows Computer to a Windows or Linux ECS? Scenarios You want to use FTP to transfer files from a local Windows computer to an ECS. Prerequisites An EIP has been bound to the ECS and access to TCP port 21 is allowed in the inbound
How Can I Check Whether the ECSs Attached with the Same Shared SCSI Disk Are in the Same ECS Group? Scenarios Shared EVS disks of the SCSI type support SCSI locks. To improve data security, the shared EVS disks of the SCSI type must be attached to the ECSs in the same anti-affinity
Why Does the System Display Invalid Certificate or Associated Chain When I Log In to a Windows ECS from a Mac? Symptom When you use Microsoft Remote Desktop for Mac to remotely access a Windows ECS, the system displays invalid certificate or associated chain. Figure 1 Microsoft Remote
How Do I Enable My ECS to Boot From the Second Kernel If It Fails to Boot from the First Kernel? Scenarios The operations described in this section apply to ECSs running CentOS or EulerOS with at least two kernels installed. CentOS 6 Log in to the management console, restart the ECS
What Should I Do If I Cannot Use MSTSC to Log In to an ECS Running the Windows Server 2012 OS? Symptom An ECS running the Windows Server 2012 OS has password authentication configured during ECS creation. When a user used the initial password and MSTSC to log in to the ECS, the login
How Do I Obtain My Disk Device Name in the ECS OS Using the Device Identifier Provided on the Console? Scenarios You find that the device name displayed in the ECS OS is different from that displayed on the management console and you cannot determine which disk name is correct. This
Why Does the System Display Invalid Certificate or Associated Chain When I Log In to a Windows ECS from a Mac? Symptom When you use Microsoft Remote Desktop for Mac to remotely access a Windows ECS, the system displays invalid certificate or associated chain. Figure 1 Microsoft Remote
Why Can't I Find My Newly Purchased Data Disk After I Log In to My Windows ECS? Symptom After logging in to my Windows ECS, I cannot find the attached data disk. Formatting a disk will cause data loss. Before formatting a disk, create a backup for it. Possible Causes A newly added
Why Do I Get the Error "No space left on device" When I Create a File on a Linux ECS? Symptom When you create a file on a Linux ECS, the error message "No space left on device" is displayed. Possible Causes The block usage on the disk reaches 100%. The inode usage on the disk reaches
Why Can't I Access an ECS Running CentOS 7 Using SSH After I Changed the Default SSH Port? Symptom After the default port of the SSH service is changed, and inbound traffic on the new port is allowed by the ECS security group, you could not access the ECS using SSH. Constraints The
Why Does My Remote Desktop Session End Because Another User Logs In When I Log In to a Windows ECS? Symptom An error message is displayed indicating that your remote desktop session has ended because another user has connected to the remote computer. Figure 1 Ended remote desktop
What Should I Do If Error Code 1006 or 1000 Is Displayed When I Log In to an ECS Through the Management Console? Symptom When I attempted to remotely log in to an ECS using VNC, the system displayed error code 1006, as shown in Figure 1. Figure 1 Error message displayed in a VNC-based
Why Am I Seeing the Error Message "Access denied" When I Remotely Log In to a Linux ECS? Symptom When you attempt to remotely log in to a Linux ECS, the system displays the error message "Access denied". Possible Causes Incorrect username or password. A policy that denies logins from
