Ruby on rails Puma:iptables端口3000有问题

我对使用此配置的iptables和puma（端口3000）有问题：

Chain INPUT (policy DROP 18 packets, 1982 bytes)
 pkts bytes target     prot opt in     out     source               destination         
   14  1076 ACCEPT     all  --  eth0   any     anywhere             anywhere             state RELATED,ESTABLISHED
    0     0 ACCEPT     tcp  --  eth0   any     anywhere             anywhere             tcp dpt:ssh state NEW,ESTABLISHED
    0     0 ACCEPT     all  --  lo     any     anywhere             anywhere            
    0     0 ACCEPT     tcp  --  any    any     *.*.*.*              anywhere            
    0     0 ACCEPT     tcp  --  any    any     *.*.*.*              anywhere            
    0     0 ACCEPT     tcp  --  any    any     *.*.*.*              anywhere            
    0     0 ACCEPT     tcp  --  any    any     *.*.*.*              anywhere            
   13  6666 ACCEPT     tcp  --  any    any     *.*.*.*              anywhere             tcp dpt:3000 state NEW,ESTABLISHED

Chain FORWARD (policy DROP 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain OUTPUT (policy ACCEPT 31 packets, 2646 bytes)
 pkts bytes target     prot opt in     out     source               destination 

---

当我尝试从授权ip访问端口3000时，没有返回任何数据。但当我使用nmap检查端口3000是否打开时。我是否在iptables中错误配置了某些内容？谢谢。

我只是想知道这是否是一种开发配置，以及如何启动rails服务器（哪个命令）？您能否发布

netstat-anpt

和

iptables save

？netstat-anpt

https://gist.github.com/itsmechlark/4ef6aa0eefc8feac83db

iptables保存

https://gist.github.com/itsmechlark/6c81de14fd99fb17d2ea

BTW，puma通过monit作为非root用户运行。