Chr*_*ris 3 iptables docker centos7
我想阻止从外部直接访问 docker 容器。我使用 haproxy,只允许访问端口 80、443。
我在 iptables 中添加了以下规则。但我仍然可以通过不同的端口访问 docker 容器。
*filter
:INPUT DROP [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT
COMMIT
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这可能是由于 DOCKER 链造成的
# iptables -L
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT icmp -- anywhere anywhere
ACCEPT all -- anywhere anywhere
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:http
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:https
Chain FORWARD (policy ACCEPT)
target prot opt source destination
DOCKER-ISOLATION all -- anywhere anywhere
DOCKER all -- anywhere anywhere
ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
DOCKER all -- anywhere anywhere
ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
DOCKER all -- anywhere anywhere
ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
DOCKER all -- anywhere anywhere
ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
Chain DOCKER (4 references)
target prot opt source destination
ACCEPT tcp -- anywhere 172.18.0.2 tcp dpt:http
Chain DOCKER-ISOLATION (1 references)
target prot opt source destination
DROP all -- anywhere anywhere
DROP all -- anywhere anywhere
DROP all -- anywhere anywhere
DROP all -- anywhere anywhere
DROP all -- anywhere anywhere
DROP all -- anywhere anywhere
DROP all -- anywhere anywhere
DROP all -- anywhere anywhere
DROP all -- anywhere anywhere
DROP all -- anywhere anywhere
DROP all -- anywhere anywhere
DROP all -- anywhere anywhere
RETURN all -- anywhere anywhere
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我需要创建什么规则来阻止直接访问?
小智 5
您可以使用该docker network create NETWORK命令创建一个网络来连接您的应用程序和代理,而不是使用 IP 表来执行此操作。也不要在任何端口上公开应用程序。您应该公开的唯一容器是您的代理。然后,您可以在代理内部使用容器名称作为主机名来路由流量。同一网络上的每个容器都可以被其他容器访问。
例如如果
my-service并在端口 3000 上运行服务,并且没有发布到主机的端口我建议阅读https://docs.docker.com/engine/userguide/networking/work-with-networks/因为这解释了如何开始使用网络。
完全披露:我在我的个人 VPS 上运行这种设置,无法直接通过端口访问我的容器。使用内置的 docker 网络可能比乱搞 IP 表更好
希望这有用。
迪伦
我概括了该过程,因为我不知道您在代理、网络限制等方面的设置细节。我也没有进入具体命令,因为上面的链接比我更好地涵盖了它。
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