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General Reference

Concepts

This article describes common terms and their brief descriptions when using Ping An Cloud ELB.

Terms

Description

ELB service

A network load balancing service which Ping An Cloud provides for its customers.

ELB service provides a unified access interface for the computing node cluster formed by back-end servers. Ping An Cloud mainly provides ELB service under four protocols including TCP, UDP, HTTP and HTTPS.

ELB instances

ELB instances are the actual vector of ELB service.

Users can deploy ELB service by creating and configuring ELB instances.

Listener

Listener is an important functional component of ELB instance. A listener provides listening port, protocols, ELB algorithms and health check, and routes requests from clients to hosts in the resource pool.

ELB service operates according to the creation and configuration of listeners specified by the user.

Server resource pool

A server resource pool is a computing resource clusters that can provide Internet services.

ELB service provides a unified access port for Internet clients and distributes access traffic of t clients to member servers in the server resource pool via ELB algorithms to realize load balancing.

Service IP addresses

ELB instances inform the unified access port to the clients network by releasing service IP address externally.

Access control

ELB features listening level access control. Users can configure different access control policies for different listeners by whitelisting or blacklisting to control access permission.

Certificate management

When creating a HTTPS protocol, you need to upload SSL certificates and use them for security verification.
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