Server Load Balancing
Server Load Balancing (SLB) is a network service that distributes traffic to a computing cluster that consists of multiple cloud servers. SLB increases the service capability of your application system through traffic distribution. It hides the real service port to enhance the security of the internal system. It also improves the reliability of your application system by eliminating single points of failure (SPOFs).
Benefits
High Performance
SLB uses a distributed cluster to provide the performance required to distribute large amounts of business traffic.
High Stability
SLB adopts the redundancy design to prevent SPOFs. More backend servers can be added conveniently as your business grows.
Cost Effectiveness
SLB allows you to deploy applications in a cost-effective manner. You can create private SLB instances and assign IP addresses to these instances free of charge.
Security
SLB provides free DDoS attack defense, which can dynamically start without delay.
Features
Basic Forwarding
SLB provides Internet-facing and internal-facing services at Layer 4 (TCP/UDP) and Layer 7 (HTTP/HTTPS).
Flexible EIP Binding/Unbinding
You can bind an EIP to an SLB instance and unbind it as needed. This improves flexibility and service availability.
Health Check
SLB checks the health of backend servers in your distributed cluster based on your configurations. Abnormal servers are automatically isolated.
Session Persistence
SLB supports session persistence, which distributes all requests from a client to the same backend server.
HTTPS Support
SLB supports HTTPS and allows you to manage HTTPS certificates in a centralized manner. This meets your diversified requirements for reliable, fast, and secure data transmission.
Product Updates
2
HTTPS Supported
SLB supports HTTPS. KCM is released. EPC instances can be used as the backend servers of Layer 7 SLB instances.
2016-10-20
New Features
3
Private SLB Instance Released
Layer 7 SLB instances support private IP addresses.
2017-03-23
New Features
4
Access Control
SLB supports access control for inbound traffic based on the protocol, IP address, traffic direction, and priority.
2018-09-13
New Features
5
Custom UDP-based Health Check
SLB supports custom UDP-based health checks.
2018-11-13
New Features
6
IPv6 SLB Instance Available for Purchase
IPv6 SLB instances are available for purchase in the Beijing, Shanghai, and Guangzhou regions. You can contact Kingsoft Cloud customer service to purchase IPv6 SLB instances.
2018-11-21
New Features
7
New Metrics
SLB supports new metrics, such as currently active connections, currently inactive connections, and concurrent connections, to help you check SLB status more conveniently.
2019-03-19
New Features
8
TLS Policy Supported
Third-party security evaluation websites have stringent requirements on the TLS version during security rating. This feature allows you to select the TLS version and the version of the TLS cipher suite.
2019-04-25
New Features
9
HTTP/1.1 Supported
Layer 7 listeners can access backend servers through HTTP/1.1.
2019-04-25
New Features
Scenarios
Basic Scenario
SLB can be used with EIP to distribute traffic from the Internet to different cloud servers.
Quick Start
Customers
Xiaomi
Founded in April 2010, Xiaomi is a mobile Internet company specializing in the development of intelligent hardware and electronic products.
WPS
Since its birth in 1988, WPS Office has been revolutionizing, innovating, and expanding as a product suite. It has now become the first choice in the Chinese office software market.
Cheetah Mobile
Cheetah Mobile is a mobile application developer ranked No. 3 on Google Play in global non-gaming applications, and is committed to providing faster, easier-to-use, and more secure mobile Internet experience for global mobile users.