DDNS

Tencent Cloud DNS Configuration Guide

Overview

Tencent Cloud DNS (TencentCloud DNSPod) is a professional DNS resolution service provided by Tencent Cloud, suitable for users who need high availability and high-performance DNS resolution. This DDNS project supports authentication through Tencent Cloud API keys.

Authentication Method

API Key Authentication

Tencent Cloud DNS uses SecretId and SecretKey for API authentication, which is the most secure and recommended authentication method.

How to Obtain API Keys

From DNSPod

1. Login to DNSPod Console
   • Visit DNSPod Console
   • Sign in with your DNSPod account
2. Go to API Key Management
   • Visit API Key Management
3. Create a New Secret Key
   • Click the “Create Key” button
   • Enter a descriptive name (e.g., “DDNS Host”)
   • Select appropriate permissions (domain management permission required)
   • Click “Confirm” to create

From Tencent Cloud

1. Login to Tencent Cloud Console
   • Visit Tencent Cloud Console
   • Sign in with your Tencent Cloud account
2. Go to API Key Management
   • Visit API Key Management
   • Click “Create Key” button
3. Create New API Key
   • Click the “Create Key” button
   • Copy the generated SecretId and SecretKey
   • Important: Save both values securely, as they provide full access to your account
4. Verify Permissions
   • Ensure your account has DNSPod related permissions
   • Check Access Management Console if needed

Configuration Using API Keys

{
  "dns": "tencentcloud",
  "id": "AKIDxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
  "token": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
}

Parameters:

• id: Your Tencent Cloud SecretId
• token: Your Tencent Cloud SecretKey
• dns: Must be set to "tencentcloud"

Complete Configuration Examples

Basic Configuration

{
  "id": "AKIDxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
  "token": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
  "dns": "tencentcloud",
  "ipv6": ["home.example.com", "server.example.com"]
}

Configuration with Optional Parameters

{
  "id": "AKIDxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
  "token": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
  "dns": "tencentcloud",
  "ipv6": ["dynamic.mydomain.com"],
  "ttl": 300,
  "record_type": "A"
}

Optional Configuration Parameters

TTL (Time To Live)

{
  "ttl": 300
}

• Range: 1-604800 seconds
• Default: 600 seconds (10 minutes)
• Recommended: 120-600 seconds for dynamic DNS

Record Type

{
  "record_type": "A"
}

• Supported Types: A, AAAA, CNAME
• Default: A (IPv4)
• Use “AAAA” for IPv6 addresses

Line Type (ISP Route)

{
  "line": "默认"
}

• Options: “默认” (Default), “电信” (China Telecom), “联通” (China Unicom), “移动” (China Mobile), “教育网” (Education Network), etc.
• Default: “默认” (Default line)

Permission Requirements

Ensure the Tencent Cloud account has the following permissions:

• DNSPod: Domain resolution management permissions
• QcloudDNSPodFullAccess: Full DNSPod access permission (recommended)

You can view and configure permissions in the Access Management Console.

Troubleshooting

Common Issues

“Signature Error” or “Authentication Failed”

• Check if SecretId and SecretKey are correct
• Verify the keys haven’t expired
• Confirm account has sufficient permissions

“Domain Not Found” Error

• Verify the domain is added to Tencent Cloud DNSPod
• Check domain spelling in configuration
• Ensure domain status is normal

“Record Operation Failed”

• Check if subdomain has conflicting records
• Verify TTL value is within acceptable range
• Confirm line type setting is correct

“API Call Limit Exceeded”

• Tencent Cloud API has rate limiting
• Increase update intervals appropriately
• Check if other programs are calling the API simultaneously

Debug Mode

Enable debug logging to see detailed information:

ddns --debug

Common Error Codes

• AuthFailure.SignatureExpire: Signature expired
• AuthFailure.SecretIdNotFound: SecretId does not exist
• ResourceNotFound.NoDataOfRecord: Record does not exist
• LimitExceeded.RequestLimitExceeded: Request frequency exceeded

API Limitations

• Request Rate: Default 20 requests per second
• Single Query: Maximum 3000 records returned
• Domain Count: Limited based on service plan

Support and Resources

• Tencent Cloud DNSPod Documentation: https://cloud.tencent.com/document/product/1427
• Tencent Cloud DNSPod API Reference: https://cloud.tencent.com/document/api/1427
• Tencent Cloud Console: https://console.cloud.tencent.com/dnspod
• Tencent Cloud Technical Support: https://cloud.tencent.com/document/product/282

It is recommended to use sub-account API keys and grant only the necessary DNSPod permissions to improve security.

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