- Release Notes and Announcements
- Public Image Release Notes
- Announcements
- Updating Some Image Pip Package Management Tools for CentOS 7
- CentOS 8 End of Maintenance
- Discontinuation of Support for SUSE Commercial Images
- Price Reduction in Selected Availability Zones
- OrcaTerm Proxy IP Addresses Updates
- Windows Server 2003 System Images End of Support Announcement
- Pay-as-you-go Price Adjustments for Standard S3 CVMs in the Silicon Valley Region
- Vulnerability repairing for Linux images
- End of Support for Windows Server 2008 R2 Enterprise Edition SP1 64-bit System Images
- Upgrading Virtio network card drive for Windows CVMs
- Solution to Tomcat Start Failure on Ubuntu14.04
- Stopping supporting for Ubuntu 10.04 images
- About Configuration of Security Group Port 53
- Tutorial
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Operation Guide Overview
- Use Limits
- Convenience Features
- Instances
- Creating Instances
- Batch Sequential Naming or Pattern String-Based Naming
- Adjusting Configuration
- View Instance Details
- Renaming Instances
- Resetting Instance Password
- Managing Instance IPs
- Changing Instance Subnet
- Changing Security Group
- Searching for Instances
- Exporting Instance List
- Renewing Instances
- Querying the Repossession Status of a Spot Instance
- Shutting Down Instances
- Restarting Instances
- Logging In to Linux Instances
- Logging in to Windows instance
- Reinstalling System
- Using Tencent Cloud Automation Tools to execute commands
- Terminating/Returning Instances
- Enabling Instance Termination Protection
- Instance Repossession or Recovering
- Spot Instances
- No Charges When Shut Down for Pay-as-You-Go Instances
- Starting Up Instances
- Managing Roles
- Reserved Instances
- Images
- Migrating Servers
- Cloud Disks
- Networking
- Maintenance Tasks
- Security
- Security Groups
- Protection of Sensitive Operations
- Managing Login Password
- Managing SSH Keys
- Spread Placement Group
- Unblocking Port 25
- Tags
- Monitoring and Alarms
- Sample Console Configuration
- Best Practice
- Best Practices
- Choosing the CVM Model
- Setting up a Website
- Building an Environment
- Building a Website
- Building an Application
- Building a Visual GUI
- Data Backup
- Migrating CVM Instances
- Uploading Local Files to CVM
- Copying Local Files to CVMs
- Uploading Files from MacOS to Windows CVM Using MRD
- Uploading Files from Linux to Windows CVM using RDP
- Uploading Files from Linux to a CVM Using FTP
- Uploading files via WinSCP to a Linux CVM from Windows
- Uploading Files from Windows to a CVM Using FTP
- Uploading Files from Linux or MacOS to Linux CVM via SCP
- Uploading Files from Windows to a Windows CVM via MSTSC
- Other CVM Operations
- CVM Access to COS via a Private Network
- Recovering Data on Linux CVMs
- Managing Disk Space on Windows CVMs
- Changing Kernel of a Linux Instance Manually
- Setting Up Windows-based AD Domain on a CVM
- Network Performance Test
- High-throughput Network Performance Test
- Using USB/IP to Share USB Devices in Linux
- Using RemoteFx to Redirect USB Devices in Windows
- Using AVX-512 Instructions to Accelerate AI Applications on CVM
- Building Tencent SGX Confidential Computing Environment
- Configuring Persistent Memory in M6p Instances
- Calling Cloud APIs via Python to Share Custom Images in Batches
- Operations Guide
- Initializing Data Disks
- Environment Configurations
- Installing Software
- User Data
- Work with Operating Systems
- System Activation
- System Updates
- System Shutdown
- Configuring High-performance Power Management
- Windows Recovery Mode
- Use of the atop Monitoring Tools by Linux Instances
- Ensuring Unique SIDs for CVMs Using Sysprep
- Modifying VNC Resolution
- Introduction to Linux Kernel Parameters
- Updating the Virtio ENI Driver
- Modifying SID
- Others
- Troubleshooting
- Instance-Related Failures
- CVM Login Failures
- Windows Instance Login Failures
- Windows Instance Login Failures
- An authentication error occurred when you tried to log in to a Windows instance remotely
- Failed to Reset the CVM Password or the CVM Password Is Invalid
- Windows instance: no remote Desktop license server can provide license
- Requires network-level identity verification
- Problems occurred when you tried to log in to a Windows CVM remotely on Mac
- Failed to log in to a Windows CVM due to high CPU and memory usage
- Failed to connect to a remote computer through Remote Desktop
- Credentials Not Work
- Connection to a Windows CVM through Remote Desktop was denied
- Remote Login Failure Due To Port Issues
- Linux Instance Login Failures
- Linux Instance Login Failures
- Unable to Log in to a Linux Instance via SSH Key
- Failing to log in to a Linux CVM due to high CPU and memory usage
- Remote Login Failure due to Port Issues
- VNC Login Error (Module is Unknown)
- VNC Login Error (Account Locked due to XXX Failed Logins)
- VNC Login Error (Login Failed with Correct Password)
- VNC or SSH Login Error (Permission Denied)
- Login Failure Due to /etc/fstab Configuration Errors
- sshd Configuration File Permissions
- Infinite Loop Call in /etc/profile
- Login Failure Due to Server Isolation
- Login Failure Due to High Bandwidth Occupation
- Remote Connect Failure Due to Security Group Settings
- Troubleshooting Linux Instance Issues via VNC and Rescue Mode
- Failed to shut down or restart a CVM
- Network Namespace Creation Failure
- Kernel and IO Issues
- Missing System bin or lib Soft Link
- Suspected Infection with Virus
- "no space left on device" Error During File Creation
- Linux CVM Memory Issues
- Network Related Failures
- Instance-Related Failures
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Region APIs
- Instance APIs
- DescribeInstances
- DescribeInstanceFamilyConfigs
- DescribeZoneInstanceConfigInfos
- DescribeInstanceTypeConfigs
- DescribeInstancesOperationLimit
- DescribeInstanceVncUrl
- InquiryPriceRunInstances
- InquiryPriceResetInstance
- InquiryPriceResetInstancesType
- InquiryPriceResizeInstanceDisks
- RunInstances
- StartInstances
- RebootInstances
- StopInstances
- ResetInstance
- TerminateInstances
- ResetInstancesType
- ResizeInstanceDisks
- ResetInstancesPassword
- ModifyInstancesAttribute
- ModifyInstancesProject
- InquirePricePurchaseReservedInstancesOffering
- DescribeReservedInstancesConfigInfos
- DescribeInstancesStatus
- PurchaseReservedInstancesOffering
- Cloud Hosting Cluster APIs
- Placement Group APIs
- Image APIs
- Key APIs
- Security Group APIs
- Network APIs
- Instance Launch Template APIs
- Data Types
- Error Codes
- FAQs
- Related Agreement
- Glossary
- Release Notes and Announcements
- Public Image Release Notes
- Announcements
- Updating Some Image Pip Package Management Tools for CentOS 7
- CentOS 8 End of Maintenance
- Discontinuation of Support for SUSE Commercial Images
- Price Reduction in Selected Availability Zones
- OrcaTerm Proxy IP Addresses Updates
- Windows Server 2003 System Images End of Support Announcement
- Pay-as-you-go Price Adjustments for Standard S3 CVMs in the Silicon Valley Region
- Vulnerability repairing for Linux images
- End of Support for Windows Server 2008 R2 Enterprise Edition SP1 64-bit System Images
- Upgrading Virtio network card drive for Windows CVMs
- Solution to Tomcat Start Failure on Ubuntu14.04
- Stopping supporting for Ubuntu 10.04 images
- About Configuration of Security Group Port 53
- Tutorial
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Operation Guide Overview
- Use Limits
- Convenience Features
- Instances
- Creating Instances
- Batch Sequential Naming or Pattern String-Based Naming
- Adjusting Configuration
- View Instance Details
- Renaming Instances
- Resetting Instance Password
- Managing Instance IPs
- Changing Instance Subnet
- Changing Security Group
- Searching for Instances
- Exporting Instance List
- Renewing Instances
- Querying the Repossession Status of a Spot Instance
- Shutting Down Instances
- Restarting Instances
- Logging In to Linux Instances
- Logging in to Windows instance
- Reinstalling System
- Using Tencent Cloud Automation Tools to execute commands
- Terminating/Returning Instances
- Enabling Instance Termination Protection
- Instance Repossession or Recovering
- Spot Instances
- No Charges When Shut Down for Pay-as-You-Go Instances
- Starting Up Instances
- Managing Roles
- Reserved Instances
- Images
- Migrating Servers
- Cloud Disks
- Networking
- Maintenance Tasks
- Security
- Security Groups
- Protection of Sensitive Operations
- Managing Login Password
- Managing SSH Keys
- Spread Placement Group
- Unblocking Port 25
- Tags
- Monitoring and Alarms
- Sample Console Configuration
- Best Practice
- Best Practices
- Choosing the CVM Model
- Setting up a Website
- Building an Environment
- Building a Website
- Building an Application
- Building a Visual GUI
- Data Backup
- Migrating CVM Instances
- Uploading Local Files to CVM
- Copying Local Files to CVMs
- Uploading Files from MacOS to Windows CVM Using MRD
- Uploading Files from Linux to Windows CVM using RDP
- Uploading Files from Linux to a CVM Using FTP
- Uploading files via WinSCP to a Linux CVM from Windows
- Uploading Files from Windows to a CVM Using FTP
- Uploading Files from Linux or MacOS to Linux CVM via SCP
- Uploading Files from Windows to a Windows CVM via MSTSC
- Other CVM Operations
- CVM Access to COS via a Private Network
- Recovering Data on Linux CVMs
- Managing Disk Space on Windows CVMs
- Changing Kernel of a Linux Instance Manually
- Setting Up Windows-based AD Domain on a CVM
- Network Performance Test
- High-throughput Network Performance Test
- Using USB/IP to Share USB Devices in Linux
- Using RemoteFx to Redirect USB Devices in Windows
- Using AVX-512 Instructions to Accelerate AI Applications on CVM
- Building Tencent SGX Confidential Computing Environment
- Configuring Persistent Memory in M6p Instances
- Calling Cloud APIs via Python to Share Custom Images in Batches
- Operations Guide
- Initializing Data Disks
- Environment Configurations
- Installing Software
- User Data
- Work with Operating Systems
- System Activation
- System Updates
- System Shutdown
- Configuring High-performance Power Management
- Windows Recovery Mode
- Use of the atop Monitoring Tools by Linux Instances
- Ensuring Unique SIDs for CVMs Using Sysprep
- Modifying VNC Resolution
- Introduction to Linux Kernel Parameters
- Updating the Virtio ENI Driver
- Modifying SID
- Others
- Troubleshooting
- Instance-Related Failures
- CVM Login Failures
- Windows Instance Login Failures
- Windows Instance Login Failures
- An authentication error occurred when you tried to log in to a Windows instance remotely
- Failed to Reset the CVM Password or the CVM Password Is Invalid
- Windows instance: no remote Desktop license server can provide license
- Requires network-level identity verification
- Problems occurred when you tried to log in to a Windows CVM remotely on Mac
- Failed to log in to a Windows CVM due to high CPU and memory usage
- Failed to connect to a remote computer through Remote Desktop
- Credentials Not Work
- Connection to a Windows CVM through Remote Desktop was denied
- Remote Login Failure Due To Port Issues
- Linux Instance Login Failures
- Linux Instance Login Failures
- Unable to Log in to a Linux Instance via SSH Key
- Failing to log in to a Linux CVM due to high CPU and memory usage
- Remote Login Failure due to Port Issues
- VNC Login Error (Module is Unknown)
- VNC Login Error (Account Locked due to XXX Failed Logins)
- VNC Login Error (Login Failed with Correct Password)
- VNC or SSH Login Error (Permission Denied)
- Login Failure Due to /etc/fstab Configuration Errors
- sshd Configuration File Permissions
- Infinite Loop Call in /etc/profile
- Login Failure Due to Server Isolation
- Login Failure Due to High Bandwidth Occupation
- Remote Connect Failure Due to Security Group Settings
- Troubleshooting Linux Instance Issues via VNC and Rescue Mode
- Failed to shut down or restart a CVM
- Network Namespace Creation Failure
- Kernel and IO Issues
- Missing System bin or lib Soft Link
- Suspected Infection with Virus
- "no space left on device" Error During File Creation
- Linux CVM Memory Issues
- Network Related Failures
- Instance-Related Failures
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Region APIs
- Instance APIs
- DescribeInstances
- DescribeInstanceFamilyConfigs
- DescribeZoneInstanceConfigInfos
- DescribeInstanceTypeConfigs
- DescribeInstancesOperationLimit
- DescribeInstanceVncUrl
- InquiryPriceRunInstances
- InquiryPriceResetInstance
- InquiryPriceResetInstancesType
- InquiryPriceResizeInstanceDisks
- RunInstances
- StartInstances
- RebootInstances
- StopInstances
- ResetInstance
- TerminateInstances
- ResetInstancesType
- ResizeInstanceDisks
- ResetInstancesPassword
- ModifyInstancesAttribute
- ModifyInstancesProject
- InquirePricePurchaseReservedInstancesOffering
- DescribeReservedInstancesConfigInfos
- DescribeInstancesStatus
- PurchaseReservedInstancesOffering
- Cloud Hosting Cluster APIs
- Placement Group APIs
- Image APIs
- Key APIs
- Security Group APIs
- Network APIs
- Instance Launch Template APIs
- Data Types
- Error Codes
- FAQs
- Related Agreement
- Glossary
CVM Overview
Tencent Cloud Virtual Machine (CVM) is a scalable cloud computing service that frees you from estimation of resource usage and upfront investment. With Tencent Cloud CVM, you can start CVMs and deploy applications immediately.
You can customize all resources of a CVM instance, including CPU, memory, disk, network, and security policies. You can also easily adjust the resources in response to any change in demand.
Using CVM instances
You can configure and manage CVM instances in the following ways:
- Console: a web-based UI for configuring and managing CVM instances.
- API: Tencent Cloud also provides APIs for configuring and managing CVM instances. For more information, see API Category.
- SDK: you can use SDK or Tencent Cloud CLI to call CVM APIs.
Key Concepts
Before using Tencent Cloud CVM, you should familiarize yourself with the following concepts:
| Concept | Description |
|---|---|
| Instance | A virtual computing resource containing basic computing components such as CPU, memory, OS, network, and disks. Tencent Cloud provides various configurations of CPU, MEM, storage, and networking capacity for CVM instances. For more information, please see Instance Types. |
| Image | A pre-configured template containing an operating system and applications that CVM instances run on. Tencent Cloud CVM provides pre-configured images for Windows, Linux, etc. |
| Cloud Block Storage | A distributed and persistent block storage device provided by Tencent Cloud that can serve as the system disk or an expandable data disk of an instance. |
| Virtual Private Cloud | A logically isolated virtual network space in Tencent Cloud. |
| IP address | Tencent Cloud provides Private IP and Public IP addresses. Private IP addresses are for the interconnection of CVM instances within the same LAN, while public IP addresses are for public-facing services. |
| Elastic IP | Static public network IP addresses designed especially for dynamic networks to meet the demands for fast troubleshooting. |
| Security group | A virtual firewall that features stateful data packet filtering. It is used to configure the network access control of CVMs. Security groups are an important measure for network security and isolation. |
Purchasing and Customizing CVM Instances
If you have specific needs that our standard CVM specifications cannot meet, use the following guides to learn how to obtain custom configurations:
CVM Prices
CVM supports pay-as-you-go. For more information, see Price of CVM Instance.
For pricing information on CVM instances and other resources, refer to Product Pricing.
Relevant Products
- Auto Scaling lets you scale server clusters using pre-defined criteria such as time or load. For more information, refer to the Auto Scaling documentation.
- Cloud Load Balancer allows you to automatically distribute client traffic among multiple CVM instances. For more information, refer to the Cloud Load Balancer documentation.
- Tencent Kubernetes Engine allows you to manage the lifecycle of applications in a CVM. For more information, refer to the Tencent Kubernetes Engine documentation.
- Cloud Monitor keeps track of your CVM instances and their system disks. For more information, refer to the Basic Cloud Monitor documentation.
- You can deploy a relational database on the cloud or use TencentDB. For more information, refer to the TencentDB for MySQL documentation.
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