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The company’s newly deployed Alibaba cloud server uses the pagoda to deploy the application, and the FileZilla server on the pagoda is used to receive things. Today, we found that after using the FileZilla client locally to connect to the FileZilla server successfully, the “/” directory of the FileZilla server is not displayed

Troubleshooting process: 1. Firstly, the security group rule of alicloud console is excluded, and port 21 has been allowed. 2. Check the firewall on the server. The firewall has also allowed FTP in and out. 3. Check the settings of the FileZilla server on the server. It is found that “use the following IP” (the address of Alibaba cloud server) is automatically configured in “passive mode settings” – IPv4 specific “. The configuration here causes the passive mode connection failure of the FileZilla client, Therefore, the FTP directory on the server cannot be read (in fact, the feedback from the FileZilla client has indicated that the passive mode connection failed)

Solution: configure the “passive mode settings” in FileZilla server – “IPv4 specific” – to “default”, so that you can correctly read the “/” directory of FileZilla server