Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about how to solve the FTP fault. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

FTP is a familiar application, and it will be used more frequently in daily life. A few days ago, a friend asked for help, a LINUX server after modifying the default FTP port, there is a problem of unable to transfer files. After carefully analyzing each other's network architecture, we finally solved this problem successfully after changing a parameter on its RADWARE load balancer. Now share the process of troubleshooting with you.

Network architecture (see figure):

There is a specific client in the public network that needs to access the FTP server in the production environment because the default port needs to be modified to access it due to security requirements. As a result, it is found that files cannot be uploaded or downloaded. Note: all the servers in the production environment are load balancing methods under the RADWARE load balancing environment.

1. SUSE LINUX 10 modifies the FTP default port

The file can be connected but cannot be transferred.

Transmission under WINDOWS:

Some client-side tools, such as FlashFXP, can check passive mode in the parameter settings of the options menu.

When using the default port 21, the Any default support can be selected on the Application application layer.

When using the changed FTP port, the FTP Control support item needs to be selected on the Application application layer to match.

Well, this small detail also makes it clearer for us to set the FTP for RADWARE load balancer.

The above is the editor for you to share how to solve the FTP fault, if you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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