闲置服务器搭建临时邮箱Forsaken-Mail

之前都是将域名绑定到G Suite或者Office 365来搭建域名邮箱，最近服务器闲置地有点多，为了不吃灰，拿来搭建一个零时邮箱！

https://patriotic.ml

项目地址 https://github.com/denghongcai/forsaken-mail 项目作者写的步骤有点不怎么清楚，这里将自己的摸索过程记录如下

1. 安装

安装Docker

<span class="pln">curl </span><span class="pun">-</span><span class="pln">fsSL https</span><span class="pun">:</span><span class="com">//get.docker.com -o get-docker.sh</span><span class="pln">
bash </span><span class="kwd">get</span><span class="pun">-</span><span class="pln">docker</span><span class="pun">.</span><span class="pln">sh</span>

拉取镜像

<span class="pln">docker run </span><span class="pun">--</span><span class="pln">name forsaken</span><span class="pun">-</span><span class="pln">mail </span><span class="pun">-</span><span class="pln">d </span><span class="pun">-</span><span class="pln">p </span><span class="lit">25</span><span class="pun">:</span><span class="lit">25</span> <span class="pun">-</span><span class="pln">p </span><span class="lit">3000</span><span class="pun">:</span><span class="lit">3000</span><span class="pln"> denghongcai</span><span class="pun">/</span><span class="pln">forsaken</span><span class="pun">-</span><span class="pln">mail</span>

疑难杂症

1. 如果提示Error starting userland proxy: listen tcp4 0.0.0.0:25: bind: address already in use.，一般是由于sendmail占用了25端口。查找是25端口被谁占用：

<span class="pln">sudo netstat </span><span class="pun">-</span><span class="pln">pna </span><span class="pun">|</span><span class="pln"> grep </span><span class="lit">25</span><span class="pln">
tcp        </span><span class="lit">0</span>      <span class="lit">0</span> <span class="lit">127.0</span><span class="pun">.</span><span class="lit">0.1</span><span class="pun">:</span><span class="lit">25</span>            <span class="lit">0.0</span><span class="pun">.</span><span class="lit">0.0</span><span class="pun">:*</span><span class="pln">               LISTEN      </span><span class="lit">28656</span><span class="pun">/</span><span class="pln">sendmail</span><span class="pun">:</span><span class="pln"> MTA </span>

这里可以看到的确是sendmail占用了25端口，由于这里用不到sendmail，立即停止sendmail

<span class="str">/etc/</span><span class="pln">init</span><span class="pun">.</span><span class="pln">d</span><span class="pun">/</span><span class="pln">sendmail stop
docker container rm forsaken</span><span class="pun">-</span><span class="pln">mail</span>

并重新拉取镜像

<span class="pln">docker run </span><span class="pun">--</span><span class="pln">name forsaken</span><span class="pun">-</span><span class="pln">mail </span><span class="pun">-</span><span class="pln">d </span><span class="pun">-</span><span class="pln">p </span><span class="lit">25</span><span class="pun">:</span><span class="lit">25</span> <span class="pun">-</span><span class="pln">p </span><span class="lit">3000</span><span class="pun">:</span><span class="lit">3000</span><span class="pln"> denghongcai</span><span class="pun">/</span><span class="pln">forsaken</span><span class="pun">-</span><span class="pln">mail</span>

安装成功，应该就可访问网站了： http://IP:3000/

2. 如果访问不了，可前往宝塔安全设置，放行3000端口

2. 设置DNS记录

只需要添加 MX 、A 两个记录即可

TTL：自动

3. 使用域名访问

设置DNS记录，添加A记录

宝塔新建网站：宝塔新建网站，域名填paelic.org，其他默认

宝塔设置Nginx反代

至此，便可以用域名访问，而不用IP加端口访问了！

3. 修改网站内容

<span class="pln">root@google</span><span class="pun">:~</span><span class="com"># docker ps</span><span class="pln">
CONTAINER ID   IMAGE                       COMMAND                  CREATED         STATUS         PORTS                                                                          NAMES
c7a10eb9f879   denghongcai</span><span class="pun">/</span><span class="pln">forsaken</span><span class="pun">-</span><span class="pln">mail   </span><span class="str">"/bin/sh -c 'npm sta…"</span>   <span class="lit">5</span><span class="pln"> minutes ago   </span><span class="typ">Up</span> <span class="lit">5</span><span class="pln"> minutes   </span><span class="lit">0.0</span><span class="pun">.</span><span class="lit">0.0</span><span class="pun">:</span><span class="lit">25</span><span class="pun">-></span><span class="lit">25</span><span class="pun">/</span><span class="pln">tcp</span><span class="pun">,</span> <span class="pun">:::</span><span class="lit">25</span><span class="pun">-></span><span class="lit">25</span><span class="pun">/</span><span class="pln">tcp</span><span class="pun">,</span> <span class="lit">0.0</span><span class="pun">.</span><span class="lit">0.0</span><span class="pun">:</span><span class="lit">3000</span><span class="pun">-></span><span class="lit">3000</span><span class="pun">/</span><span class="pln">tcp</span><span class="pun">,</span> <span class="pun">:::</span><span class="lit">3000</span><span class="pun">-></span><span class="lit">3000</span><span class="pun">/</span><span class="pln">tcp   forsaken</span><span class="pun">-</span><span class="pln">mail
root@google</span><span class="pun">:~</span><span class="com"># docker exec -it c7a10eb9f879 bash</span>

<span class="pln">apt</span><span class="pun">-</span><span class="kwd">get</span><span class="pln"> install vim </span><span class="pun">&&</span><span class="pln"> vim </span><span class="kwd">public</span><span class="pun">/</span><span class="pln">index</span><span class="pun">.</span><span class="pln">html</span>

如果vim打开后中文乱码，那么在vim normal模式输入冒号后进入命令模式，再输入

<span class="kwd">set</span><span class="pln"> encoding</span><span class="pun">=</span><span class="pln">utf</span><span class="pun">-</span><span class="lit">8</span>

回车。乱码应该立马变正常。

4. 一些docker命令

由于程序是docker封装的，以下对日后维护很有帮助的docker命令简记如下
1. 查看所有容器

<span class="pln">docker ps </span><span class="pun">-</span><span class="pln">a
CONTAINER ID   IMAGE                       COMMAND                  CREATED          STATUS                        PORTS     NAMES
</span><span class="lit">13f0c6688370</span><span class="pln">   denghongcai</span><span class="pun">/</span><span class="pln">forsaken</span><span class="pun">-</span><span class="pln">mail   </span><span class="str">"/bin/sh -c 'npm sta…"</span>   <span class="lit">44</span><span class="pln"> minutes ago   </span><span class="typ">Exited</span> <span class="pun">(</span><span class="lit">137</span><span class="pun">)</span> <span class="lit">32</span><span class="pln"> minutes ago             forsaken</span><span class="pun">-</span><span class="pln">mail</span>

可以看到容器forsaken-mail的容器ID（CONTAINER ID）是13f0c6688370
2. 启动已停止的容器

<span class="pln">docker start </span><span class="pun">容器</span><span class="pln">ID</span>

3. 关闭正在运行的容器

<span class="pln">docker start </span><span class="pun">容器</span><span class="pln">ID</span>

4. 重启容器

<span class="pln">docker start </span><span class="pun">容器</span><span class="pln">ID</span>

5. 进入容器

<span class="pln">docker </span><span class="kwd">exec</span> <span class="pun">-</span><span class="pln">it </span><span class="pun">容器</span><span class="pln">ID </span><span class="pun">/</span><span class="pln">bin</span><span class="pun">/</span><span class="pln">bash</span>

搭建挺简单的，只是碰到的小问题挺多。

搭建成功，就可以愉快玩耍了！