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【开启容器到外部的访问】有些issue提到无法发送邮件大部分都是这个原因 #74

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【开启容器到外部的访问】有些issue提到无法发送邮件大部分都是这个原因 #74

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13 changes: 13 additions & 0 deletions README.md
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Expand Up @@ -278,6 +278,19 @@ git clone git@gitlab.example.com:myuser/awesome-project.git
git clone ssh://git@gitlab.example.com:2222/myuser/awesome-project.git
```

#### 开启容器到外部的访问

默认情况下，从容器发送到默认网桥的流量，并不会被转发到外部。要开启转发，需要改变两个设置。这些不是 Docker 命令，并且它们会影响 Docker 主机的内核。
这些设置在重新启动时失效，因此可能需要将它们添加到启动脚本中。

```bash
# 配置 Linux 内核来允许 IP 转发
$ sysctl net.ipv4.conf.all.forwarding=1

# 改变 iptables 的政策，FORWARD 政策从 DROP 变为 ACCEPT
$ sudo iptables -P FORWARD ACCEPT
```

# 相关信息

* GitLab Docker 相关操作请参考：<http://docs.gitlab.com/omnibus/docker/>
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