docker 容器端口映射之后外网无法访问。

前言 https://www.v2ex.com/t/264386#reply9

大概就是我买了个 vultr 的 vps 跑 ss ，别人安利了我个 finalspeed

我想在 docker 里跑它，折腾了一下，发现外网访问不了那个端口

➜ finalspeed docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c6b81467255c finalspeed "/bin/bash" 20 minutes ago Up 19 minutes 0.0.0.0:5006->150/tcp, 0.0.0.0:5006->150/udp finalspeed

iptable 的 nat 规则如下

➜ finalspeed sudo iptables -nL -t nat
Chain PREROUTING (policy ACCEPT)
target prot opt source destination
DOCKER all -- 0.0.0.0/0 0.0.0.0/0 ADDRTYPE match dst-type LOCAL

Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
DOCKER all -- 0.0.0.0/0 !127.0.0.0/8 ADDRTYPE match dst-type LOCAL

Chain POSTROUTING (policy ACCEPT)
target prot opt source destination
MASQUERADE all -- 172.17.0.0/16 0.0.0.0/0
MASQUERADE tcp -- 172.17.0.2 172.17.0.2 tcp dpt:150
MASQUERADE udp -- 172.17.0.2 172.17.0.2 udp dpt:150

Chain DOCKER (2 references)
target prot opt source destination
RETURN all -- 0.0.0.0/0 0.0.0.0/0
DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:5006 to:172.17.0.2:150
DNAT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:5006 to:172.17.0.2:150



iptable 的规则如下
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:5006
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:5006


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本机 telnet 实测没什么问题

外网环境 Connection failed.

请大家帮我看一下，有可能是什么情况！谢谢