检测到您已登录华为云国际站账号，为了您更好的体验，建议您访问国际站服务网站 https://www.huaweicloud.com/intl/zh-cn
不再显示此消息
检测到您已登录华为云国际站账号，为了您更好的体验，建议您访问国际站服务网站 https://www.huaweicloud.com/intl/zh-cn
不再显示此消息
Modifying ECS Specifications (vCPUs and Memory) Modifying Specifications of Individual ECSs Parent topic: Instances
Logging In to a Linux ECS Using an SSH Key Pair Scenarios Key pairs (SSH key pairs) are a set of security credentials for identity authentication when you remotely log in to ECSs. A key pair consists of a public key and a private key. Key Pair Service (KPS) stores the public key and
Enabling Internet Connectivity for an ECS Without an EIP Bound Scenarios To ensure platform security and conserve EIPs, EIPs are only assigned to specified ECSs. ECSs without EIPs cannot access the Internet directly. If these ECSs need to access the Internet (for example, to perform
What Is the Creation Time and Launch Time of an ECS? Creation time: time when the ECS is created on the cloud platform. Launch time: time when the ECS is launched for the first time. After purchasing an ECS, you can click the ECS name on the list page and view the creation time and
What Is the Default Password for Logging In to a Linux ECS? The default username for logging in to an ECS running Linux (such as CentOS or Ubuntu) is root, and the password is the one you set during the ECS creation. You can change the password of a Linux ECS. For details, see Resetting
Can I Install or Upgrade the OS of an ECS? You can install or upgrade ECS OSs provided on the cloud platform. When you create an ECS, you can select a public image or a private image created from a public image to install the ECS OS. Select an OS image based on the programming language
Why Is My Windows ECS Running Slowly? If your ECS runs slowly or is inaccessible unexpectedly, the bandwidth or vCPU usage of the ECS may be excessively high. If you have created an alarm rule in Cloud Eye, the system automatically sends an alarm to you when the bandwidth or CPU usage
Why Is My Linux ECS Running Slowly? If your ECS runs slowly or is inaccessible unexpectedly, the bandwidth or vCPU usage of the ECS may be excessively high. If you have created an alarm rule in Cloud Eye, the system automatically sends an alarm to you when the bandwidth or CPU usage
Can I Attach Multiple Disks to an ECS? Yes. The ECSs created after the disk function upgrade can have up to 60 attached disks. When you create an ECS, you can attach 24 disks to it. After you create an ECS, you can attach up to 60 disks to it. Table 1 Numbers of disks that can be
What Is the Default Password for Logging In to a Linux ECS? The default username for logging in to an ECS running Linux (such as CentOS or Ubuntu) is root, and the password is the one you set during the ECS creation. If you forgot the login password or did not set a password when
How Do I Configure DNS for an ECS? Scenarios Configure a DNS server for resolving the domain name of an ECS. By default, the IP address of the DNS server is automatically configured when an ECS is created. No manual configuration is needed except when the resolution fails due to a
What Are the Requirements for Attaching an EVS Disk to an ECS? The EVS disk and the target ECS must be located in the same AZ. The target ECS must be in Running or Stopped state. The EVS disk must not be frozen. For yearly/monthly ECSs: If you detach the system disk that you purchased
Modifying ECS Specifications (vCPUs and Memory) Overview Modifying Specifications of Individual ECSs Modifying Specifications of Multiple ECSs Changing a Xen ECS to a KVM ECS (Windows) Automatically Changing a Xen ECS to a KVM ECS (Linux) Manually Changing a Xen ECS to a KVM ECS (
Enabling Internet Connectivity for an ECS Without an EIP Bound Scenarios To ensure platform security and conserve EIPs, EIPs are only assigned to specified ECSs. ECSs without EIPs cannot access the Internet directly. If these ECSs need to access the Internet (for example, to perform
Using IAM Roles or Policies to Grant Access to ECS System-defined permissions in role/policy-based authorization provided by Identity and Access Management (IAM) let you control access to ECS. With IAM, you can: Create IAM users for personnel based on your enterprise's organizational
Using IAM Identity Policies to Grant Access to ECS System-defined permissions in identity policy-based authorization provided by Identity and Access Management (IAM) let you control access to ECS. With IAM, you can: Create IAM users or user groups for personnel based on your enterprise's
How Quickly Can I Obtain an ECS? Obtaining an ECS can take as little as a few minutes. The time it takes to obtain an ECS depends on ECS specifications, available resources (such as EVS disks and ECSs), and system load. If it takes a long time to obtain your ECS, contact customer
Can I Install or Upgrade the OS of an ECS? You can install or upgrade ECS OSs provided on the cloud platform. When you create an ECS, you can select a public image or a private image created from a public image to install the ECS OS. Select an OS image based on the programming language
Can I Forcibly Restart or Stop an ECS? Yes. If an ECS remains in the Restarting or Stopping state for over 30 minutes after it is restarted, you can forcibly restart or stop the ECS as follows: Log in to the management console. Click in the upper left corner and select a region and
What Is the Creation Time and Launch Time of an ECS? Creation time: time when the ECS is created on the cloud platform. Launch time: time when the ECS is launched for the first time. After purchasing an ECS, you can click the ECS name on the list page and view the creation time and
