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File Access Troubleshooting Guide

File Access Troubleshooting Guide ​

When you encounter file access issues, you can typically investigate several key aspects. This guide will help you systematically diagnose and resolve these problems.

1. Storage Service Permission Check ​

Policy Permission Control System ​

Storage space access permissions are controlled by Policies. Please follow these steps to check:

  1. Access the space settings page
  2. Check if there are any policies that set MOSGetObject to Deny
  3. Solutions:
    • Remove restrictive policies
    • Modify policy permissions to Allow
    • If no policies exist, consider adding one that explicitly allows MOSGetObject

2. CDN Configuration Status Check ​

Configuration Effectiveness ​

Some CDN configuration changes may cause temporary access issues, especially in the following situations:

  • When modifying the origin site
  • When switching anti-hotlinking features

Troubleshooting Steps:

  1. Check configuration status in the Domains module
  2. Pay attention to notification messages above feature settings
  3. If configurations haven't taken effect for an extended period:
    • Seek help through online customer service
    • Provide your domain name for quick problem identification

3. Anti-hotlinking Feature Check ​

Signature Anti-hotlinking ​

Signature anti-hotlinking is an advanced security feature that requires special attention:

  • Once enabled, all links need temporary signatures generated
  • Use case: Prevention of malicious traffic attacks
  • Alternative solution: Consider using CORS-based anti-hotlinking
    • Easier to implement
    • Suitable for handling general hotlinking issues
    • Cannot defend against targeted attacks

Solutions: ​

  1. If enabled by mistake: Disable the feature in space settings
  2. If needed:
    • Implement signature generation logic
    • Or switch to CORS anti-hotlinking solution

4. Storage Type Check ​

Special Storage Type Handling ​

Some storage types cannot be accessed directly by default:

  • Archive storage
  • Deep archive storage

Solutions: ​

  1. Check storage type in the file list
  2. If it's an archive type, you can:
    • Perform file restoration
    • Or modify storage type to standard storage

Getting Support ​

If the above methods don't resolve the issue, please:

  1. Contact online customer service
  2. Provide complete domain information
  3. Describe the troubleshooting steps you've already tried

Our technical support team will assist you with in-depth investigation and problem resolution.