Anti-DDoS Service
Anti-DDoS Service
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" in this service
All results for "
" in this service
What's New
Function Overview
Service Overview
Understanding DDoS Attacks
What Is a DDoS Attack?
How Can I Report to the Network Monitoring Department When a DDoS Attack Occurs?
Black Hole Policy
Understanding Anti-DDoS Service
Selecting Anti-DDoS Service Editions
CNAD Basic
What Is CNAD Basic
Application Scenarios
Advantages
Cloud Native Anti-DDoS Advanced
What Is CNAD?
Application Scenarios
Advantages
Advanced Anti-DDoS
Advanced Anti-DDoS
Specifications
Application Scenarios
Advantages
Edition Differences
Security
Shared Responsibilities
Identity Authentication and Control
Data Protection
Audit and Logging
Service Resilience
Risk Monitoring
Certificates
Limitations and Constraints
Permissions Management
Anti-DDoS Permissions
CNAD Permissions
AAD Permissions
Related Services
Billing
Billing Overview
Billing Modes
Overview
Yearly/Monthly Billing
Pay-Per-Use
Billing Items
CNAD Basic
CNAD Unlimited Protection - Basic Edition
CNAD Unlimited Protection - Advanced Edition
CNAD Advanced - Cloud Native Protection 2.0
Anti-DDoS Service (AAD)
AAD - International Edition
Renewing Subscriptions
Overview
Manually Renewing DDoS Mitigation
Auto-renewing DDoS Mitigation
Bills
Arrears
Stopping Billing
Cost Management
Billing FAQs
General FAQs
Will Traffic Be Forwarded and Charged After Protocol Blocking or Geo-Blocking Is Enabled?
Billing FAQs of CNAD Advanced
How Will I Be Charged for Using CNAD?
Will I Be Charged for Using the Bandwidth of CNAD Advanced?
How Do I Unsubscribe From CNAD Advanced?
How Is Elastic Bandwidth Charged?
Billing FAQs of AAD
How Is AAD Billed?
Why Does My Payment Status Not Update After I Make a Payment?
Will I Be Charged If I Buy an Elastic Protection Bandwidth and My Elastic IP Address Is Not Attacked for the Whole Month?
What Happens If the Attack Traffic Exceeds the Elastic Protection Bandwidth?
Can I Adjust My Elastic Protection Bandwidth From 100 Gbit/s to 200 Gbit/s When I Find 100 Gbit/s Is Insufficient?
What Is the Charge If My IP Address Is Attacked Many Times a Day?
How Do I Stop Elastic Protection to Avoid Being Charged for the Elastic Protection Bandwidth?
How Can I Renew the AAD Service?
How Can I Unsubscribe from the AAD Service?
How Should I Automatically Renew AAD?
Can the Original Configuration Data Be Saved After I Unsubscribe from an AAD Instance?
How Is the Elastic Bandwidth Charged?
Getting Started
Using CNAD Basic for Free
Quick Access to CNAD - Unlimited Protection Basic Edition
Quick Access to CNAD - Unlimited Protection Advanced Edition
Quick access to Cloud Native Anti-DDoS 2.0
Getting Started with Common Practices
User Guide
CNAD Basic (Anti-DDoS) User Guide
Anti-DDoS Overview
Using IAM to Grant Anti-DDoS Permissions
Creating a User Group and Assigning the Anti-DDoS Access Permission
Anti-DDoS Custom Policies
Anti-DDoS Permissions and Actions
Permission Dependency of the Anti-DDoS Console
Setting a Traffic Scrubbing Threshold to Intercept Attack Traffic
Setting DDoS Alarm Notifications
Enabling DDoS Alarm Notifications
Enabling Logging
Adding a Tag to an EIP
Viewing an EIP Monitoring Report
Viewing an Interception Report
Querying Audit Logs
Anti-DDoS Operations That Can Be Recorded by CTS
Viewing Logs on CTS
CNAD Advanced (CNAD) Operation Guide
CNAD Overview
Using IAM to Grant CNAD Permissions
Creating a User and Granting the CNAD Access Permission
CNAD Pro Custom Policies
CNAD Pro Permissions and Actions
Permission Dependency of the CNAD Console
Purchasing a CNAD Instance
Adding a Protection Policy
Protection Policy Overview
Configuring a Basic Protection Policy to Intercept Attack Traffic
Using Watermarks to Defend Against CC Attacks
Blocking or Permitting Traffic From Specified IP Addresses Using a Blacklist and Whitelist
Blocking Traffic to a Specified Port
Limiting Traffic of a Specified Protocol
Setting a Traffic Handling Policy Based on Fingerprint Features
Using Advanced Protection Policies to Restrict Abnormal Connections
Blocking Traffic From Specified Locations
Filtering Attacks Based on One-Click Rate Limiting Rules
Adding a Protected Object
Enabling Alarm Notifications for DDoS Attacks
Enabling Logging
Viewing Statistics Reports
Managing Instances
Viewing Information About an Instance
Modify Specifications
Configuring Instance Tags
Managing Protected Objects
Viewing Details about a Protected Object
Selecting a Protection Policy for a Protected Object
Deleting a Protected Object
Viewing Monitoring Metrics
CNAD Monitoring Metrics
Viewing Monitoring Metrics
Configuring Monitoring Alarm Rules
Setting Event Alarm Notifications
Querying Audit Logs
CNAD Advanced Operations That Can Be Recorded by CTS
Viewing CTS Traces
Advanced Anti-DDoS User Guide
AAD Overview
Using IAM to Grant AAD Permissions
Creating a User and Granting the AAD Access Permission
Creating an AAD Custom Policy
AAD Permissions and Actions
Permission Dependency of the AAD Console
Purchasing an AAD Instance
Purchasing AAD Instances
Purchasing an AAD Instance (International Edition)
Purchasing Protection Times
Connecting Services to AAD
Overview
Connecting Domain Name-based Website Services to AAD
Connecting Non-Domain Name Services to AAD
Protection Suggestions After AAD Is Connected
Configuring a Protection Policy
Protection Policy Overview
Enabling Basic Web Protection
Blocking Traffic From Specified Locations
Blocking Traffic of a Specified Protocol
Blocking or Allowing Traffic From Specified IP Addresses Using a Blacklist and Whitelist
Mitigating CC Attacks Using Frequency Control Policies
Using Intelligent CC Policies to Defend Against CC Attacks
Enabling Alarm Notifications for DDoS Attacks
Enabling Logging
Viewing Statistics
Managing Instances
Viewing Information About an Instance
Upgrading Instance Specifications
Enabling Auto-renewal
Configuring Instance Tags
Managing Domain Names
Viewing Information About a Domain Name
Modifying Resolution Lines for High-Defense IP Addresses of a Domain Name
Modifying Domain Name Configuration
Modify TLS Configuration
Setting the HTTP2 Protocol
Configuring Field Forwarding
Adding Domain Names in Batches
Deleting Domain Names
Certificate Management
Updating a Certificate
Viewing a Certificate
Uploading a Certificate
Deleting a Certificate
Managing Forwarding Rules
Viewing Monitoring Metrics
AAD Monitoring Metrics
Viewing Monitoring Metrics
Configuring Monitoring Alarm Rules
Setting Event Alarm Notifications
Querying Audit Logs
AAD Operations Supported by CTS
Viewing CTS Traces
Scheduling Center Quotas
Purchasing Anti-DDoS Scheduling Center Protection
Configuring Tiered Scheduling Rules
Enabling Tiered Scheduling Alarm Notifications
Configuring CDN Scheduling Rules
Best Practices
Overview
Best Practices of Cloud Native Anti-DDoS (CNAD) Basic
Accessing a Black-holed Server Through ECS
Best Practices of Cloud Native Anti-DDoS (CNAD) Advanced
Using ELB and CNAD Advanced to Improve the DDoS Protection Capabilities of ECSs
Using WAF, ELB, and CNAD Advanced to Improve Website Service Security
Best Practices of Advanced Anti-DDoS
Using AAD to Identify Attack Types
Using the TOA Module to Obtain the Actual Source IP Addresses of Requests
Using WAF and AAD to Protect Domain Names
Using CDN and AAD to Protect Dynamic and Static Resources
Migrating Website Services Between Two AAD Instances
Using the Scheduling Center to Implement Tiered Traffic Scheduling.
API Reference
Before You Start
API Overview
API Calling
Making an API Request
Authentication
Response
API
Anti-DDoS Management
Querying the List of Defense Statuses of EIPs
Querying Optional Anti-DDoS Defense Policies
Querying Weekly Defense Statistics
Querying Configured Anti-DDoS Defense Policies
Updating Anti-DDoS Defense Policies
Querying the Traffic of a Specified EIP
Querying Events of a Specified EIP
Querying Configured Anti-DDoS Defense Policies
Anti-DDoS Task Management
Querying Anti-DDoS Tasks
Alarm configuration management
Querying alert config
Configuring alert config
Default Protection Policy Management
Configuring the Default Protection Policy for Newly Purchased Public IP Addresses
Querying the Default Protection Policy Configured for the Newly Purchased Public IP Addresses
Deleting the Default Anti-DDoS Policy Configured for Newly Purchased Public IP Addresses
Examples
Example 1: Updating Defense Policy for an IP Address
Example 2: Configuring the Default Protection Policy
Appendix
Status Code
Error Codes
Obtaining a Project ID
Out-of-Date APIs
Querying Optional Anti-DDoS Defense Policies
Querying Anti-DDoS Tasks
SDK Reference
SDK Overview
FAQs
General FAQs
What Are Regions and AZs?
What Is the Black Hole Policy of HUAWEI CLOUD?
What are the Relationships Between ADS and Anti-DDoS Traffic Cleaning, CNAD Pro, and AAD?
What Are the Differences Between Anti-DDoS and Advanced Anti-DDoS?
What Are a SYN Flood Attack and an ACK Flood Attack?
What Is a Slow HTTP Attack?
What Are a UDP Attack and a TCP Attack?
What Are the Differences Between DDoS Attacks and Challenge Collapsar Attacks?
What Can I Do If an IP Address Is Blocked?
Does Anti-DDoS Support the Transparent Access Mode?
Does Anti-DDoS Service Provide SDKs?
How Do I Migrate Instance Resources in an Enterprise Project?
CNAD Basic (Anti-DDoS) FAQs
About Anti-DDoS
How Will Anti-DDoS Be Triggered to Scrub Traffic?
Does Anti-DDoS Traffic Scrubbing Affect Normal Services?
What Is the Protection Capacity of Anti-DDoS?
What Data Can Be Provided by Anti-DDoS?
Can CNAD Basic Be Used Across Clouds or By Multiple Accounts?
How to Determine Whether an Attack Occurs?
About Basic Functions
What Would Happen When I Am Under a DDoS Attack Exceeding 500 Mbit/s?
Which Types of Attacks Does Anti-DDoS Mitigate?
What Should I Do If My Service Is Frequently Attacked?
Why Is the Number of Times of Cleaning Different from the Number of Attacks for the Same Public IP Address?
Is CNAD Basic Enabled by Default?
Does CNAD Basic Protect a Region or IP Addresses?
Do I Need to Release Anti-DDoS Resources When I Delete an Account?
How Do I View the Traffic Scrubbing Frequency?
How Can I View Anti-DDoS Protection Statistics?
How Can I View the Monitoring Data of a Public IP Address in Anti-DDoS?
How Can I View an Interception Report?
Can I Disable Anti-DDoS Completely?
How Do I Check Whether the Inbound Traffics Are Routed Through Anti-DDoS Devices?
About Threshold and Black Hole
How Does the Traffic Scrubbing Threshold Take Effect in Anti-DDoS?
How Do I Set the Anti-DDoS Traffic Scrubbing Threshold?
How Can I Adjust the Block Threshold?
About Alarm Notification
Will I Be Promptly Notified When an Attack Is Detected?
What Should I Do If I Receive an Alarm Notification?
How Do I Disable the Alarm Notification?
How Do I Enable Anti-DDoS Blocking Notifications?
About Service Faults
Why Is the Access from the Internet Abnormal?
What Should I Do If Access to a Client Is Denied Due to DDoS Attacks?
How Do I Query the Protection Information About a Public IP Address That Is Under DDoS Attacks?
Is Traffic Cleaning Triggered Even If No Attack Occurs?
CNAD Advanced FAQs
Function Consulting
What Is Unlimited Protection?
Can CNAD Advanced Protect Non-Huawei Cloud and On-Premises IP Addresses?
Does CNAD Advanced Protect IPv6 Addresses?
What Do I Do If an IP Address Protected by CNAD Advanced Is Blocked?
What Are the Protection Objects of CNAD Advanced?
How Many Layers of Attacks Can CNAD Advanced Defend Against?
How Long Does It Take to Switch Traffic from CNAD Advanced Back to AAD?
Can CNAD Advanced Be Used Across Regions?
What Is A Dedicated EIP?
Billing
How Will I Be Charged for Using CNAD?
Will I Be Charged for Using the Bandwidth of CNAD Advanced?
How Do I Unsubscribe From CNAD Advanced?
How Is Elastic Bandwidth Charged?
AAD FAQs
Function Specifications
What Service Ports Does AAD Support?
What Forwarding Protocols Does AAD Support?
Can I Change My Protection Bandwidths?
Can an AAD Origin Server Use a CDN CNAME?
What Is the Maximum Protection Capability When I Purchase 10 Gbit/s as the Basic Protection Bandwidth and 20 Gbit/s as the Elastic Protection Bandwidth?
Does AAD Use a Public IP Address to Switch Traffic Back to Origin Servers?
What Is the Maximum Number of Domain Names AAD Can Protect?
How Much Additional Latency Will Be Incurred When AAD Is Deployed?
Is There a Limit to the Number of Concurrent Requests?
How Do I Disable Advanced Anti-DDoS?
How Many Origin Server IP Addresses and Ports Does AAD Support?
Can an AAD Instance Support Both Website and IP Address Access?
Access Configuration
Can I Connect My Service System to AAD If It Is Not Running on HUAWEI CLOUD?
How Do I Check Whether a Protected Domain Name Is Correctly Configured After I Connect It to AAD?
What Can I Do When Message "Invalid request" Is Displayed When I Upload an HTTPS/WebSockets Certificate?
How Do I Convert a Non-PEM Certificate into a PEM One?
How Do I Enable Both AAD and WAF?
How Do I Connect My Service System to AAD?
How Is CNAME-based Access Implemented?
How Does AAD Distribute Traffic When There Are Multiple Origin Servers?
How Do I Check Whether a Back-to-Origin IP Address Has Been Whitelisted on My Origin Server?
How Do I Change the Exposed IP Address of an Origin Server?
How Do I Query the Back-to-Origin IP Address Range?
Can I Build My Own Anti-DDoS System Using HUAWEI CLOUD ECSs?
How Do the AAD Blacklist and Whitelist Protect Customer's Servers?
Do I Still Need to Configure the Blacklist and Whitelist in WAF Protection Policies After Configuring Them in DDoS Protection Policies?
How Do I Use a Domain Name to Access Both IPv4 and IPv6 Services?
What Should I Do If I Receive a Message Stating That the Domain Name Already Exists When Trying to Connect?
Faults
What Should I Do When Encountering an Access Freezing, Delay, or Failure?
Why Is Error 504 Displayed When I Access a Website After AAD Is Configured?
How Do I Identify the Type of Attacks?
What Should I Do If Error 500, 502, or 504 Is Reported When I Access My Website After I Enable Basic Web Protection for My Domain Name?
What Can I Do If I Failed to Configure a Forwarding Rule?
What Can I Do If My UDP Traffic Is Blocked?
How Do I Unblock the Access That Has Been Automatically Blocked Due to the Threshold-Overtopped Attack Traffic?
Why Can't I Specify Certain Ports When Configuring the Forwarding Rule?
Error Message "Received fatal alert" Is Displayed After a Domain Name Is Bound to AAD
Product
What Is a Protected IP Address?
Does AAD Support Weighted Back-to-Origin?
Can AAD Be Used Across Regions?
Does AAD Support Migration of Resources in Enterprise Projects?
What Is a CNAME Record?
What is BGP?
What Is the Origin Server Port of AAD?
What Is the Origin Server IP Address?
What Website IP Addresses Is Protected by AAD?
What Is Service Bandwidth?
What Is a Forwarding Protocol?
Are Services Interrupted When They Are Being Connected to AAD?
Can a Domain Name Be Bound to Multiple AAD Instances?
Why Does the High-Defense IP Address Actually Receive Access Requests from a Client After AAD Is Deployed?
Why Does the Attack Traffic Volume Increase After AAD Is Deployed?
Will the Origin Server Be Exposed When the Attack Traffic Volume Increases After AAD Is Deployed?
How Does AAD Protect Origin Server IP Addresses?
Does AAD Support Two-Way SSL Authentication?
Can I Modify or Delete the Certificates Uploaded to AAD?
What Will Happen If My Service Traffic Exceeds the Configured Service Bandwidth?
Is AAD Software or Hardware?
Does AAD Support IPv6 Protection?
Why Is the Traffic of AAD Inconsistent with That of ELB?
Fees
How Is AAD Billed?
Why Does My Payment Status Not Update After I Make a Payment?
Will I Be Charged If I Buy an Elastic Protection Bandwidth and My Elastic IP Address Is Not Attacked for the Whole Month?
What Happens If the Attack Traffic Exceeds the Elastic Protection Bandwidth?
Can I Adjust My Elastic Protection Bandwidth From 100 Gbit/s to 200 Gbit/s When I Find 100 Gbit/s Is Insufficient?
What Is the Charge If My IP Address Is Attacked Many Times a Day?
How Do I Stop Elastic Protection to Avoid Being Charged for the Elastic Protection Bandwidth?
How Can I Renew the AAD Service?
How Can I Unsubscribe from the AAD Service?
How Should I Automatically Renew AAD?
Can the Original Configuration Data Be Saved After I Unsubscribe from an AAD Instance?
How Is the Elastic Bandwidth Charged?
Videos
More Documents
User Guide (Ankara Region)
Service Overview
What Is Anti-DDoS?
Concepts
Scrubbing Principle and Black Hole Threshold
Common DDoS Attacks
Functions
Advantages
Application Scenarios
Accessing and Using Anti-DDoS
How to Access Anti-DDoS
How to Use Anti-DDoS
Related Services
Permission Management
Enabling Anti-DDoS
Viewing a Public IP Address
Enabling Alarm Notification
Configuring an Anti-DDoS Protection Policy
Viewing a Monitoring Report
Viewing an Interception Report
FAQs
About Anti-DDoS
What Is Anti-DDoS?
What Are a SYN Flood Attack and an ACK Flood Attack?
What Is a CC Attack?
What Is a Slow HTTP Attack?
What Are a UDP Attack and a TCP Attack?
What Is the Million-level IP Address Blacklist Database?
How Will Anti-DDoS Be Triggered to Scrub Traffic?
Does Anti-DDoS Traffic Cleaning Affect Normal Services?
How Does Anti-DDoS Scrub Traffic?
What Are the Restrictions of Anti-DDoS?
About Basic Functions
Which Types of Attacks Does Anti-DDoS Mitigate?
What Is the Difference Between ELB Protection and ECS Protection?
Why Is the Number of Times of Cleaning Different from the Number of Attacks for the Same Public IP Address?
About Alarm notification
Will I Be Promptly Notified When an Attack Is Detected?
What Should I Do If I Receive an Alarm Notification?
API Reference (Ankara Region)
Before You Start
Overview
API Calling
Endpoints
Notes and Constraints
Concepts
API Overview
API Calling
Making an API Request
Authentication
Response
API
Anti-DDoS APIs
Querying Optional Anti-DDoS Defense Policies
Enabling Anti-DDoS
Querying Configured Anti-DDoS Defense Policies
Updating Anti-DDoS Defense Policies
Querying Anti-DDoS Tasks
Querying the List of Defense Statuses of EIPs
Querying the Defense Status of a Specified EIP
Querying the Traffic of a Specified EIP
Querying Events of a Specified EIP
Querying Weekly Defense Statistics
Alarm Reminding APIs
Querying Alarm Configuration
Updating Alarm Configuration
Appendix
Status Code
Error Codes
Obtaining a Project ID
Change History
General Reference
Glossary
Service Level Agreement
White Papers
Endpoints
Permissions