What are the reasons and solutions for the server file that cannot be downloaded after sftp.json configuration?

File cannot be downloaded after sftp.json configuration: Troubleshooting and resolution

After configuring sftp.json, can't download files from the server? This article provides detailed troubleshooting steps to help you quickly resolve this issue. Common symptoms: After clicking the download button, the system prompts an error and cannot download it.

Here is a problem encountered by a user, and an example of their configuration file:

 {
  "name": "my server",
  "host": "", // The server address has been set to "protocol": "sftp",
  "port": 22,
  "username": "root",
  "remotepath": "", // "privatekeypath": "", // "passphrase": true,
  "uploadonsave": false,
  "usetempfile": false,
  "openssh": false,
  "context": "", // Local synchronization file path has been set "downloadonopen": true
}

The user tried to delete the local known_hosts file, or even change the operating system (from Mac to Windows), and the problem persists.

Solution steps:

1. Verify the remote path: Double-check remotepath field to make sure it points to the target file or directory on the server. Path errors are the most common cause of download failure.

2. Permission check: Use the server terminal or other SSH client to verify the permissions of the server-side files. Make sure your user account has permission to read the file.

3. Private key and password verification: If you use the private key, make sure that privatekeypath points to the correct private key file and that the private key file is not corrupt or moved. Check whether passphrase setting is consistent with the private key password.

4. Network connection test: Check whether the network connection is stable. Try ping the server IP address to see if there is network delay or packet loss.

5. Configuration file syntax check: Double-check the sftp.json file to make sure it is syntax correct and there are no extra commas or other errors. It is recommended to use the online JSON verification tool to verify it.

6. Enable logging: Enable more detailed logging (for example, setting the log level to debug ) can help you find more specific error information.

7. Test with other SFTP clients: Try connecting to the server using other SFTP clients like FileZilla and try to download files. If other clients can download successfully, the problem may be with the tool you are using or its configuration.

8. Server-side settings check: Confirm that the SFTP service on the server is running normally and there are no firewall rules to prevent downloading operations.

By systematically troubleshooting the above steps, you should be able to find and resolve download failures caused by sftp.json configuration. If the problem persists, provide more detailed error information and server-side configuration information for further analysis.

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