Cloud Firewall
Cloud Firewall
- What's New
- Function Overview
- Service Overview
- Billing
- Getting Started
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User Guide
- Creating a User Group and Granting Permissions
- Checking the Dashboard
- Purchasing and Changing the Specifications of CFW
- Enabling Internet Border Traffic Protection
- Enabling VPC Border Traffic Protection
- Enabling NAT Gateway Traffic Protection
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Configuring Access Control Policies to Control Traffic
- Access Control Policy Overview
- Configuring Protection Rules to Block or Allow Traffic
- Adding Blacklist or Whitelist Items to Block or Allow Traffic
- Viewing Protection Information Using the Policy Assistant
- Managing Access Control Policies
- Managing IP Address Groups
- Domain Name Management
- Service Group Management
- Attack Defense
- Viewing Traffic Statistics
- Viewing CFW Protection Logs
- System Management
- Permissions Management
- Using Cloud Eye to Monitor CFW
- CTS Auditing
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Best Practices
- CFW Best Practice Summary
- Purchasing and Querying CFW via API
- Migrating Security Policies to CFW in Batches
- Configuration Suggestions for Using CFW with WAF, Advanced Anti-DDoS, and CDN
- Allowing Internet Traffic Only to a Specified Port
- Allowing Outbound Traffic from Cloud Resources Only to a Specified Domain Name
- Using CFW to Defend Against Network Attacks
- Configuring a Protection Rule to Protect Traffic Between Two VPCs
- Configuring a Protection Rule to Protect SNAT Traffic
- Using CFW to Protect Enterprise Resources
- Using CFW to Protect EIPs Across Accounts
- Using CFW to Protect VPCs Across Accounts
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API Reference
- Before You Start
- API Overview
- API Calling
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API
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Firewall Management
- Creating a Firewall
- Obtaining the Status of a CFW Task
- Deleting a Firewall
- Querying the Firewall List
- Changing the East-West Firewall Protection Status
- Querying Firewall Details
- Obtaining East-West Firewall Information
- Creating an East-West Firewall
- Querying the Number of Protected VPCs
- Creating a Tag
- Deleting a Tag
- EIP Management
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ACL Rule Management
- Creating an ACL Rule
- Deleting an ACL Rule
- Deleting ACL Rules in Batches
- Deleting the Number of Rule Hits
- Updating an ACL Rule
- Updating Rule Actions in Batches
- Setting the Priority of an ACL Protection Rule
- Querying a Protection Rule
- Querying Rule Tags
- Obtaining the Number of Rule Hits
- Viewing the Region List
- Checking the ACL Import Status
- Blacklist/Whitelist Management
- Address Group Management
- Service Group Management
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Domain Name Resolution and Domain Name Group Management
- Adding a Domain Name Group
- Deleting a Domain Name Group
- Updating a Domain Name Group
- Updating the DNS Server List
- Querying the Domain Name Group List
- Querying the DNS Server List
- Querying an IP Address for Domain Name Resolution
- Obtain the list of domain names in a domain name group
- Adding a Domain Name List
- Deleting a Domain Name List
- Viewing Domain Group Details
- Obtaining the DNS Resolution Result of a Domain Name
- Deleting Domain Groups in Batches
- IPS management
- Log Management
- Packet Capture Management
- Antivirus Management
- Alarm Configuration Management
- Tag Management
- IPS Management
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Firewall Management
- Appendix
- SDK Reference
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FAQs
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About the Product
- Does CFW Support Off-Cloud Servers?
- What Are the QPS, New Connections, and Concurrent Connections Supported by CFW?
- Can CFW Be Shared Across Accounts?
- What Are the Differences Between CFW and WAF?
- What Are the Differences Between CFW, Security Groups, and Network ACLs?
- How Does CFW Control Access?
- What Are the Priorities of the Protection Settings in CFW?
- Can WAF, Advanced Anti-DDoS, and CFW Be Deployed Together?
- Can CFW Protect Resources Across Enterprise Projects?
- How Long Are CFW Logs Stored by Default?
- Regions and AZs
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Troubleshooting
- What Do I Do If Service Traffic is Abnormal?
- Why Are Traffic and Attack Logs Incomplete?
- Why Does a Protection Rule Not Take Effect?
- What Do I Do If IPS Blocks Normal Services?
- Why Is No Data Displayed on the Access Control Logs Page?
- Why Is the IP Address Translated Using NAT64 Blocked?
- Why Some Permissions Become Invalid After a System Policy Is Granted to an Enterprise Project?
- What Do I Do If a Message Indicating Insufficient Permissions Is Displayed When I Configure LTS Logs?
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Network Traffic
- How Do I Calculate the Number of Protected VPCs and the Peak Protection Traffic at the VPC Border?
- How Does CFW Collect Traffic Statistics?
- What Is the Protection Bandwidth Provided by CFW?
- What Do I Do If My Service Traffic Exceeds the Protection Bandwidth?
- What Are the Differences Between the Data Displayed in Traffic Trend Module and the Traffic Analysis Page?
- How Do I Verify the Validity of an Outbound HTTP/HTTPS Domain Protection Rule?
- How Do I Obtain the Real IP Address of an Attacker?
- What Do I Do If a High Traffic Warning Is Received?
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About the Product
- Videos
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More Documents
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User Guide (Ankara Region)
- Product Overview
- Checking the Dashboard
- Creating Cloud Firewall
- Enabling Internet Border Traffic Protection
- Enabling VPC Border Traffic Protection
-
Configuring Access Control Policies to Control Traffic
- Access Control Policy Overview
- Configuring Protection Rules to Block or Allow Traffic
- Adding Blacklist or Whitelist Items to Block or Allow Traffic
- Viewing Protection Information Using the Policy Assistant
- Managing Access Control Policies
- Managing IP Address Groups
- Domain Name Management
- Service Group Management
- Attack Defense
- Viewing Traffic Statistics
- Viewing CFW Protection Logs
- System Management
-
FAQs
-
About the Product
- Does CFW Support Off-Cloud Servers?
- What Are the QPS, New Connections, and Concurrent Connections Supported by CFW?
- Can CFW Be Shared Across Accounts?
- What Are the Differences Between CFW and WAF?
- What Are the Differences Between CFW, Security Groups, and Network ACLs?
- How Does CFW Control Access?
- What Are the Priorities of the Protection Settings in CFW?
- Can WAF and CFW Be Deployed Together?
- Troubleshooting
- Network Traffic
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About the Product
- Change History
- API Reference (Ankara Region)
-
User Guide (Ankara Region)
- General Reference
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Constraints and Limitations
This topic describes some limitations and constraints on using CFW.
CFW Usage Restrictions
- Only the services deployed on Huawei Cloud can be protected. Cross-cloud access is not supported.
- Traffic protection supports EIPs, but does not support global EIPs or the EIPs bound to API Gateway.
- CFW can be used only in the region where it was purchased. To use CFW in another region, switch to that region and purchase it. For details about the regions where CFW is available, see Function Overview.
- VPC border protection depends on the enterprise router for traffic diversion. To use this function, ensure your account has at least one enterprise router.
- CFW does not support Chinese domain names.
Protection Policy Quota Limit
- Protection rules
A maximum of 20,000 protection rules can be added to a firewall instance.
- Blacklist/Whitelist
- A maximum of 2000 blacklist items can be added to a firewall instance.
- A maximum of 2000 whitelist items can be added to a firewall instance.
- Groups
- IP address groups
- A firewall instance can have up to 3800 IP address groups.
- An IP address group can contain up to 640 IP addresses.
- A firewall instance can contain up to 30,000 IP addresses.
- Service groups
- A firewall instance can have up to 900 services.
- A firewall instance can have up to 512 service groups.
- A service group can have up to 64 services.
- Domain name groups
- The domain names in a domain name group can be referenced by protection rules for up to 40,000 times, and wildcard domain names can be referenced for up to 200 times.
- Application domain name group (layer 7 protocol parsing)
- A firewall instance can have up to 500 domain name groups.
- A firewall instance can have up to 2,500 domain names.
- A domain name group can have up to 1,500 domain names.
- Network domain name group (layer 4 protocol parsing)
- A firewall instance can have up to 1,000 domain names.
- A network domain name group can have up to 15 domain names.
- Each domain name group can resolve up to 1,500 IP addresses.
- Each domain name can resolve up to 1,000 IP addresses.
- IP address groups
Restrictions on Basic IPS
- Modifying the action of a basic protection rule
- The actions of up to 3000 rules can be manually changed to observation.
- The actions of up to 3000 rules can be manually changed to interception.
- The actions of up to 128 rules can be manually changed to disabling.
- Custom IPS signature
- Only the professional edition supports custom IPS signatures.
- A maximum of 500 features can be added.
Restrictions on Logs
- CFW allows you to view log data of the last seven days. One or multiple types of logs can be recorded in LTS. You can view log data in the past 1 to 365 days.
- Up to 100,000 records can be exported for a single log at a time.
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