系统学习Docker 践行DevOps理念之容器端口映射不成功

Question

[vagrant@docker ~]$ docker run -it -d -p 9999:80 --rm --name my-web nginx /bin/bash
385f8a12c5bdd0b424c89ef5b370d3e2a5de94bb1758ad3853f591f865e31e7d
[vagrant@docker ~]$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                  NAMES
385f8a12c5bd        nginx               "/bin/bash"         6 seconds ago       Up 5 seconds        0.0.0.0:9999->80/tcp   my-web
[vagrant@docker ~]$ curl localhost:9999
curl: (56) Recv failure: Connection reset by peer

请高人指点下，不胜感激！