nginx支持socket吗

nginx: [emerg] "server" directive is not allowed here

stream {

    # 添加socket转发的代理

    upstream bss_num_socket {

        hash $remote_addr consistent;

        # 转发的目的地址和端口

        server 130.51.11.33:19001 weight=5 max_fails=3 fail_timeout=30s;

    }

    # 提供转发的服务，即访问localhost:30001，会跳转至代理bss_num_socket指定的转发地址

    server {

       listen 30001;

       proxy_connect_timeout 1s;

       proxy_timeout 3s;

       proxy_pass bss_num_socket;

    }

}