Document Center
Server Load Balancer
Product Introduction
What is Server Load Balancer?
High availability of SLB
Architecture
Features
Scenarios
Terms
Pricing
Billing method
Overdue instructions
Monitoring data and billing data
Quick Start (New Console)
Tutorial overview
Before you begin
Create an SLB instance
Configure an SLB instance
Resolve a domain name
Delete an SLB instance
Instance
SLB instance overview
Network traffic flow
Create an SLB instance
Create an IPv6 instance
Start or stop an SLB instance
Bind an EIP
Tags
Overview
Add a tag
Search for SLB instances by using a tag
Delete a tag
Change the specification of an SLB instance
Overview
Change the specification of an SLB instance
Release an SLB instance
Expiring Instances
Health checks of SLB instances
Manage idle instances
FAQ
Guaranteed-performance instance FAQ
SLB instance FAQ
Listeners
Listener overview
Add a TCP listener
Add a UDP listener
Add an HTTP listener
Add an HTTPS listener
Domain name extensions
Add a domain name extension
Edit a domain name extension
Delete a domain name extension
Manage a domain name extension
Manage TLS security policies
Redirect HTTP requests to HTTPS
FAQ
HTTPS and HTTP listener FAQs
Health check
FAQ
Troubleshoot a health check exception of a Layer-7 listener (HTTP/HTTPS)
How do I troubleshoot health check exceptions of a Layer-4 (TCP/UDP) listener?
Health check overview
Disable the health check function
Configure health checks
Backend servers
Backend server overview
Default server groups
Add default servers
Modify the weight of a backend server
Remove a backend server
VServer groups
Create a VServer group
Delete a VServer group
Edit a VServer group
Active/standby server groups
Create an active/standby server group
Delete an active/standby server group
Add private IP addresses of ENIs to backend servers
FAQ
Backend server FAQs
What can I do if my ECS instance is declared unhealthy after I enable health checks for Server Load Balancer?
Certificate management
Certificate requirements
Create a certificate
Select a certificate from Alibaba Cloud SSL Certificates Service
Upload a third-party certificate
Create a certificate
Upload a certificate
Generate a CA certificate
Convert the certificate format
Replace a certificate
Log management
Authorize a RAM user to use access logs
View operation logs
Manage health check logs
Configure access logs
Access control
Configure an access control list
Configure access control
Migrate to the new access control
Monitoring
View monitoring data
Configure alarm rules
Common Configurations
Anti-DDoS Basic
API Inspector
Multi-zone deployment
Overview page
Achieve cross-region load balancing through Global Traffic Manager
Developer Guide
API overview
Call SLB APIs
Common parameters
Obtain an Access Key
RAM authentication
Server Load Balancer (SLB) instances
CreateLoadBalancer
DeleteLoadBalancer
ModifyLoadBalancerInternetSpec
SetLoadBalancerStatus
SetLoadBalancerName
DescribeLoadBalancers
DescribeLoadBalancerAttribute
DescribeRegions
DescribeZones
ModifyLoadBalancerInstanceSpec
ModifyLoadBalancerPayType
UDP listeners
CreateLoadBalancerUDPListener
SetLoadBalancerUDPListenerAttribute
DescribeLoadBalancerUDPListenerAttribute
TCP listeners
CreateLoadBalancerTCPListener
DescribeLoadBalancerTCPListenerAttribute
SetLoadBalancerTCPListenerAttribute
HTTP listeners
CreateLoadBalancerHTTPListener
DescribeLoadBalancerHTTPListenerAttribute
SetLoadBalancerHTTPListenerAttribute
HTTPS listeners
CreateLoadBalancerHTTPSListener
DescribeLoadBalancerHTTPSListenerAttribute
SetLoadBalancerHTTPSListenerAttribute
Listeners
StartLoadBalancerListener
StopLoadBalancerListener
DeleteLoadBalancerListener
Backend servers
AddBackendServers
RemoveBackendServers
SetBackendServers
DescribeHealthStatus
VServer groups
CreateVServerGroup
SetVServerGroupAttribute
AddVServerGroupBackendServers
RemoveVServerGroupBackendServers
ModifyVServerGroupBackendServers
DeleteVServerGroup
DescribeVServerGroups
DescribeVServerGroupAttribute
Active/standby server groups
CreateMasterSlaveServerGroup
DeleteMasterSlaveServerGroup
DescribeMasterSlaveServerGroupAttribute
DescribeMasterSlaveServerGroups
Server certificates
UploadServerCertificate
DeleteServerCertificate
DescribeServerCertificates
SetServerCertificateName
UploadCACertificate
DeleteCACertificate
DescribeCACertificates
SetCACertificateName
Domain name extensions (Beta)
CreateDomainExtension
DeleteDomainExtension
DescribeDomainExtensions
SetDomainExtensionAttribute
Quota query
DescribeAvailableResource
Tags
AddTags
DescribeTags
RemoveTags
Forwarding rules
CreateRules
DeleteRules
SetRule
DescribeRuleAttribute
DescribeRules
Access control
CreateAccessControlList
DeleteAccessControlList
DescribeAccessControlLists
DescribeAccessControlListAttribute
SetAccessControlListAttribute
AddAccessControlListEntry
RemoveAccessControlListEntry
Access control (earlier version)
AddListenerWhiteListItem
DescribeListenerAccessControlAttribute
RemoveListenerWhiteListItem
SetListenerAccessControlStatus
Limits
Limits
Peak bandwidths in different regions
Manage quotas
FAQ
Why am I unable to access the SLB instance?
Why is the traffic among my ECS instances unevenly distributed?
Obtain real client IP addresses
What can I do if health checks generate an excessive number of logs?
What can I do if my ECS instance is declared unhealthy after I enable health checks for Server Load Balancer?
How do I troubleshoot health check exceptions of a Layer-4 (TCP/UDP) listener?
Troubleshoot a health check exception of a Layer-7 listener (HTTP/HTTPS)
How do I perform a stress test?
How do I troubleshoot HTTP 5xx errors?
Billing FAQ
SLB instance FAQ
Guaranteed-performance instance FAQ
Server Load Balancer FAQs
Backend server FAQs
Health check FAQ
HTTPS and HTTP listener FAQs
WS and WSS support FAQs
Tutorials
Add an HTTPS listener (one-way authentication)
Add an HTTPS listener (mutual authentication)
Redirect HTTP to HTTPS
Configure a multi-domain-name HTTPS website on an SLB instance
Traffic forwarding based on domain names or URLs
Use access logs to rapidly locate abnormal backend servers
View traffic usage
Specify an IP address for an SLB instance with OpenAPI Explorer
Archives
User Guide (Old Console)
SLB instances
SLB instance overview
Network traffic flow
Create an instance
Manage an SLB instance
Manage tags
Change the configuration
Listener
Listeners overview
Layer-4 SLB Listener.
Configure Layer-4 SLB listeners
Layer-7 listeners
HTTPS listeners
Layer-7 listener configurations
Add an HTTPS listener (one-way authentication)
Add an HTTPS listener (two-way authentication)
Redirect HTTP to HTTPS
Domain name extension
Manage a domain name extension
Configuration tutorial
Health check
Health check overview
Health check configurations
Close health check
Shared instance bandwidth
Backend servers
Backend server overview
Add default servers
Create a VServer group
Create a master-slave server group
Access control
Configure an access control list
Manage access control
Configure a whitelist
Migrate to the new access control
Certificate management
Certificate requirements
Generate CA certificates
Convert certificate formats
Upload certificates
Replace a certificate
Log management
View operation logs
Configure access logs
Authorize a RAM user to configure access logs
Manage health check logs
Peak limit for regional bandwidth
Monitoring
View monitoring data
Configure alarm rules
General Reference
Guidelines for the use of documentation
Alibaba Cloud documentation
Instructions for open source documentation
Open-Source Documentation Code of Conduct
Editing Open-Source Documentation
Alibaba Cloud console
Regions and zones
Service limits
Best practice of primary account security
Create an AccessKey
ICP Filing
Glossary
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This Product
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Server Load Balancer
Server Load Balancer
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Product Introduction
Download PDF
What is Server Load Balancer?
High availability of SLB
Architecture
Features
Scenarios
Terms
Show more
Show less
Pricing
Download PDF
Billing method
Overdue instructions
Monitoring data and billing data
Show more
Show less
Quick Start (New Console)
Download PDF
Tutorial overview
Before you begin
Create an SLB instance
Configure an SLB instance
Resolve a domain name
Delete an SLB instance
Show more
Show less
Instance
Download PDF
SLB instance overview
Network traffic flow
Create an SLB instance
Create an IPv6 instance
Start or stop an SLB instance
Bind an EIP
Tags
Change the specification of an SLB instance
Release an SLB instance
Expiring Instances
Health checks of SLB instances
Manage idle instances
FAQ
Show more
Show less
Listeners
Download PDF
Listener overview
Add a TCP listener
Add a UDP listener
Add an HTTP listener
Add an HTTPS listener
Domain name extensions
Manage TLS security policies
Redirect HTTP requests to HTTPS
FAQ
Show more
Show less
Health check
Download PDF
FAQ
Health check overview
Disable the health check function
Configure health checks
Show more
Show less
Backend servers
Download PDF
Backend server overview
Default server groups
VServer groups
Active/standby server groups
Add private IP addresses of ENIs to backend servers
FAQ
Show more
Show less
Certificate management
Download PDF
Certificate requirements
Create a certificate
Upload a certificate
Generate a CA certificate
Convert the certificate format
Replace a certificate
Show more
Show less
Log management
Download PDF
Authorize a RAM user to use access logs
View operation logs
Manage health check logs
Configure access logs
Show more
Show less
Access control
Download PDF
Configure an access control list
Configure access control
Migrate to the new access control
Show more
Show less
Monitoring
View monitoring data
Configure alarm rules
Show more
Show less
Common Configurations
Download PDF
Anti-DDoS Basic
API Inspector
Multi-zone deployment
Overview page
Achieve cross-region load balancing through Global Traffic Manager
Show more
Show less
Developer Guide
Download PDF
API overview
Call SLB APIs
Common parameters
Obtain an Access Key
RAM authentication
Server Load Balancer (SLB) instances
UDP listeners
TCP listeners
HTTP listeners
HTTPS listeners
Listeners
Backend servers
VServer groups
Active/standby server groups
Server certificates
Domain name extensions (Beta)
Quota query
Tags
Forwarding rules
Access control
Access control (earlier version)
Show more
Show less
Limits
Download PDF
Limits
Peak bandwidths in different regions
Manage quotas
Show more
Show less
FAQ
Download PDF
Why am I unable to access the SLB instance?
Why is the traffic among my ECS instances unevenly distributed?
Obtain real client IP addresses
What can I do if health checks generate an excessive number of logs?
What can I do if my ECS instance is declared unhealthy after I enable health checks for Server Load Balancer?
How do I troubleshoot health check exceptions of a Layer-4 (TCP/UDP) listener?
Troubleshoot a health check exception of a Layer-7 listener (HTTP/HTTPS)
How do I perform a stress test?
How do I troubleshoot HTTP 5xx errors?
Billing FAQ
SLB instance FAQ
Guaranteed-performance instance FAQ
Server Load Balancer FAQs
Backend server FAQs
Health check FAQ
HTTPS and HTTP listener FAQs
WS and WSS support FAQs
Show more
Show less
Tutorials
Download PDF
Add an HTTPS listener (one-way authentication)
Add an HTTPS listener (mutual authentication)
Redirect HTTP to HTTPS
Configure a multi-domain-name HTTPS website on an SLB instance
Traffic forwarding based on domain names or URLs
Use access logs to rapidly locate abnormal backend servers
View traffic usage
Specify an IP address for an SLB instance with OpenAPI Explorer
Show more
Show less
Archives
Download PDF
User Guide (Old Console)
Show more
Show less
Free Trial
Free Trial