Cockpit introduction: Cockpit is a web-based system management tool that can help administrators easily manage multiple servers. It provides an intuitive user interface, which can be used to monitor system performance, file system, network status, etc., and supports remote management and configuration. The reason is that the server was stuck three times a day yesterday, all due to the sharp increase in server read and write. Even Tencent Cloud's VNC was stuck, so we had to force the server to restart