El contenido no se encuentra disponible en el idioma seleccionado. Estamos trabajando continuamente para agregar más idiomas. Gracias por su apoyo.

Compute
Elastic Cloud Server
Huawei Cloud Flexus
Bare Metal Server
Auto Scaling
Image Management Service
Dedicated Host
FunctionGraph
Cloud Phone Host
Huawei Cloud EulerOS
Networking
Virtual Private Cloud
Elastic IP
Elastic Load Balance
NAT Gateway
Direct Connect
Virtual Private Network
VPC Endpoint
Cloud Connect
Enterprise Router
Enterprise Switch
Global Accelerator
Management & Governance
Cloud Eye
Identity and Access Management
Cloud Trace Service
Resource Formation Service
Tag Management Service
Log Tank Service
Config
OneAccess
Resource Access Manager
Simple Message Notification
Application Performance Management
Application Operations Management
Organizations
Optimization Advisor
IAM Identity Center
Cloud Operations Center
Resource Governance Center
Migration
Server Migration Service
Object Storage Migration Service
Cloud Data Migration
Migration Center
Cloud Ecosystem
KooGallery
Partner Center
User Support
My Account
Billing Center
Cost Center
Resource Center
Enterprise Management
Service Tickets
HUAWEI CLOUD (International) FAQs
ICP Filing
Support Plans
My Credentials
Customer Operation Capabilities
Partner Support Plans
Professional Services
Analytics
MapReduce Service
Data Lake Insight
CloudTable Service
Cloud Search Service
Data Lake Visualization
Data Ingestion Service
GaussDB(DWS)
DataArts Studio
Data Lake Factory
DataArts Lake Formation
IoT
IoT Device Access
Others
Product Pricing Details
System Permissions
Console Quick Start
Common FAQs
Instructions for Associating with a HUAWEI CLOUD Partner
Message Center
Security & Compliance
Security Technologies and Applications
Web Application Firewall
Host Security Service
Cloud Firewall
SecMaster
Anti-DDoS Service
Data Encryption Workshop
Database Security Service
Cloud Bastion Host
Data Security Center
Cloud Certificate Manager
Edge Security
Situation Awareness
Managed Threat Detection
Blockchain
Blockchain Service
Web3 Node Engine Service
Media Services
Media Processing Center
Video On Demand
Live
SparkRTC
MetaStudio
Storage
Object Storage Service
Elastic Volume Service
Cloud Backup and Recovery
Storage Disaster Recovery Service
Scalable File Service Turbo
Scalable File Service
Volume Backup Service
Cloud Server Backup Service
Data Express Service
Dedicated Distributed Storage Service
Containers
Cloud Container Engine
SoftWare Repository for Container
Application Service Mesh
Ubiquitous Cloud Native Service
Cloud Container Instance
Databases
Relational Database Service
Document Database Service
Data Admin Service
Data Replication Service
GeminiDB
GaussDB
Distributed Database Middleware
Database and Application Migration UGO
TaurusDB
Middleware
Distributed Cache Service
API Gateway
Distributed Message Service for Kafka
Distributed Message Service for RabbitMQ
Distributed Message Service for RocketMQ
Cloud Service Engine
Multi-Site High Availability Service
EventGrid
Dedicated Cloud
Dedicated Computing Cluster
Business Applications
Workspace
ROMA Connect
Message & SMS
Domain Name Service
Edge Data Center Management
Meeting
AI
Face Recognition Service
Graph Engine Service
Content Moderation
Image Recognition
Optical Character Recognition
ModelArts
ImageSearch
Conversational Bot Service
Speech Interaction Service
Huawei HiLens
Video Intelligent Analysis Service
Developer Tools
SDK Developer Guide
API Request Signing Guide
Terraform
Koo Command Line Interface
Content Delivery & Edge Computing
Content Delivery Network
Intelligent EdgeFabric
CloudPond
Intelligent EdgeCloud
Solutions
SAP Cloud
High Performance Computing
Developer Services
ServiceStage
CodeArts
CodeArts PerfTest
CodeArts Req
CodeArts Pipeline
CodeArts Build
CodeArts Deploy
CodeArts Artifact
CodeArts TestPlan
CodeArts Check
CodeArts Repo
Cloud Application Engine
MacroVerse aPaaS
KooMessage
KooPhone
KooDrive
Help Center/ Web Application Firewall/ User Guide (Paris) / Best Practices/ Combining WAF and Layer-7 Load Balancers to Protect Services over Any Ports

Combining WAF and Layer-7 Load Balancers to Protect Services over Any Ports

Updated on 2024-03-14 GMT+08:00

This topic walks you through how to combine dedicated WAF instances and layer-7 load balancers to protect your services over non-standard ports that cannot be protected with WAF alone. For ports supported by WAF, see Ports Supported by WAF.

Protection Scenarios

The following procedure describes how WAF and ELB together protect www.example.com:9876. Port 9876 is a non-standard port WAF alone cannot protect.

Prerequisites

  • A proper load balancer type is available.
  • Related ports have been enabled in the security group to which the dedicated WAF instance belongs.
    You can configure your security group as follows:
    • Inbound rules

      Add an inbound rule to allow incoming network traffic to pass through over a specified port based on your service requirements. For example, if you want to allow access from port 80, add a rule that allows TCP and port 80.

    • Outbound rules

      Retain the default settings. All outgoing network traffic is allowed by default.

Procedure

  1. Apply for a dedicated WAF instance.
  2. Connect www.example.com to WAF by referring to Step 1: Add a Website to WAF (Dedicated Mode). Select any non-standard port as the protected port, for example, port 86, set Server Port to 9876, and set Proxy Configured to .
  3. Add listeners and backend server groups to the load balancer.

    1. Log in to the management console.
    2. Click in the upper left corner of the management console and select a region or project.
    3. Click in the upper left corner of the page and choose Elastic Load Balance under Networking to go to the Load Balancers page.
    4. Click the name of the load balancer in the Name column to go to the Basic Information page.
    5. Click the Listeners tab and then click Add Listener. On the displayed page, configure the listener. In the Frontend Port text box, enter the port you want to protect. In this case, enter 9876.
    6. Click Next: Configure Request Routing Policy.
      NOTICE:

      If you select Weighted round robin for Load Balancing Algorithm, disable Sticky Session. If you enable Sticky Session, the same requests will be forwarded to the same dedicated WAF instance. If this instance becomes faulty, an error will occur when the requests come to it next time.

    7. Click Next: Add Backend Server and click Next: Confirm.

  4. Add the WAF instance to the load balancer.

    1. Log in to the management console.
    2. Click in the upper left corner of the management console and select a region or project.
    3. Click in the upper left corner and choose Web Application Firewall (Dedicated) under Security.
    4. In the navigation pane on the left, choose Instance Management > Dedicated Engine to go to the dedicated WAF instance page.
    5. Locate the row containing the WAF instance. In the Operation column, click More > Add to ELB.
    6. In the Add to ELB dialog box, specify ELB (Load Balancer), ELB Listener, and Backend Server Group based on 3.
    7. Click Confirm. Then, configure service port for the WAF instance. In this example, configure Backend Port to 86, which is the one we configured in 2.
    8. Click Confirm.

  5. Bind an EIP to a Load Balancer.
  6. Whitelist IP addresses of your dedicated WAF instances.

How the Combination Protects Traffic

Utilizamos cookies para mejorar nuestro sitio y tu experiencia. Al continuar navegando en nuestro sitio, tú aceptas nuestra política de cookies. Descubre más

Feedback

Feedback

Feedback

0/500

Selected Content

Submit selected content with the feedback