ufw 不遵守默认传入策略

Question

我已经在实例Ubuntu 16.04 LTS上安装。EC2

```
sudo ufw status verbose
Status: active
Logging: on (low)
Default: deny (incoming), allow (outgoing), deny (routed)
New profiles: skip

To                         Action      From
--                         ------      ----
443/tcp (Nginx HTTPS)      ALLOW IN    Anywhere
22/tcp                     ALLOW IN    Anywhere
```

我在端口上运行了一些服务4000，我可以通过互联网访问它，如果唯一开放的端口是443和，那么这怎么可能呢22？