远程访问web服务时连接不通，但是可以ping通

运行起run_server之后，在另一个ip下的机器使用curl -X POST xxxx:8999/anyq -d '{"question":"您好"}，显示curl: (7) Failed to connect to xxxx port 8999: No route to host.
该ip可以ping通，请问是什么原因，应该怎么解决

Start by reproducing the reported setup: run run_server, then use curl from another IP against the /anyq endpoint on port 8999 while confirming that ping succeeds. Check the project’s server and networking entry points for how the service binds and accepts remote connections. Done means the remote POST request connects successfully and receives the expected service response.

Written by the indexing model from the issue text.