目录

  1. 问题
  2. 原因
  3. 解决
  4. 彩蛋
  5. Reference
  6. END

问题

今天访问我的 Ghost 博客 的时候，发现进不去了：

您的连接不是私密连接您的连接不是私密连接

网上找的图，不过就是这个样子，当时忘了截图

点击 高级 也没有进去的链接，而且页面地址前面写着”不安全“，证书显示也已经过期一个月了。而且我自己部署的 flask 服务也访问不了了。

原因

Ghost 本身其实会自动 renew 证书，可使用如下命令查看定时任务：

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$ sudo crontab -l
14 0 * * * "/etc/letsencrypt"/acme.sh --cron --home "/etc/letsencrypt" > /dev/null

有这个输出就表示会自动 renew。但是根据网上的说法，Ghost 没有及时升级 /etc/letsencrypt/acme.sh 版本，造成 renew 失败之类的。

我看同目录下的 account.conf 中有一行是这样的：

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#AUTO_UPGRADE="1"

自动升级默认是被注释掉的，不过我也不能百分比确定取消注释就会自动升级。具体我也不是很懂，就不多说了，就提一嘴。

解决

所以总而言之，就是要升级 acme.sh 然后重启 Ghost。

  1. 进入 acme.sh 目录： 
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    $ cd /etc/letsencrypt
  2. 备份原文件： 
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    $ sudo cp acme.sh acme.sh.bk
  3. 升级： 
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    $ sudo ./acme.sh --upgrade
    ./acme.sh: line 6192: cd: /home/username/.acme.sh: No such file or directory
    [Fri Apr 30 09:47:22 CST 2021] Installing from online archive.
    [Fri Apr 30 09:47:22 CST 2021] Downloading https://github.com/Neilpang/acme.sh/archive/master.tar.gz
    touch: cannot touch '/home/username/.acme.sh/http.header': No such file or directory
    [Fri Apr 30 09:48:36 CST 2021] Extracting master.tar.gz
    [Fri Apr 30 09:48:36 CST 2021] It is recommended to install socat first.
    [Fri Apr 30 09:48:36 CST 2021] We use socat for standalone server if you use standalone mode.
    [Fri Apr 30 09:48:36 CST 2021] If you don't use standalone mode, just ignore this warning.
    [Fri Apr 30 09:48:36 CST 2021] Installing to /home/username/.acme.sh
    [Fri Apr 30 09:48:36 CST 2021] Installed to /home/username/.acme.sh/acme.sh
    [Fri Apr 30 09:48:36 CST 2021] Good, bash is found, so change the shebang to use bash as preferred.
    [Fri Apr 30 09:48:37 CST 2021] OK
    [Fri Apr 30 09:48:37 CST 2021] Install success!
    [Fri Apr 30 09:48:37 CST 2021] Upgrade success!
  4. 升级后的文件是放在 home 目录下的，所以要 cp 过来： 
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    $ sudo cp ~/.acme.sh/acme.sh .
  5. 手动执行一次定时任务。注意加上 —force，原因：sudo · acmesh-official/acme.sh Wiki 
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    $ sudo "/etc/letsencrypt"/acme.sh --cron --home "/etc/letsencrypt"
    [Fri Apr 30 09:53:20 CST 2021] ===Starting cron===
    [Fri Apr 30 09:53:21 CST 2021] Renew: 'northcloudgate.com'
    [Fri Apr 30 09:53:22 CST 2021] Using CA: https://acme-v02.api.letsencrypt.org/directory
    [Fri Apr 30 09:53:22 CST 2021] Single domain='northcloudgate.com'
    [Fri Apr 30 09:53:22 CST 2021] Getting domain auth token for each domain
    [Fri Apr 30 09:53:25 CST 2021] Getting webroot for domain='northcloudgate.com'
    [Fri Apr 30 09:53:25 CST 2021] Verifying: northcloudgate.com
    [Fri Apr 30 09:53:30 CST 2021] Success
    [Fri Apr 30 09:53:30 CST 2021] Verify finished, start to sign.
    [Fri Apr 30 09:53:30 CST 2021] Lets finalize the order.
    [Fri Apr 30 09:53:30 CST 2021] Le_OrderFinalize='https://acme-v02.api.letsencrypt.org/acme/finalize/64051473/9381845272'
    [Fri Apr 30 09:53:31 CST 2021] Downloading cert.
    [Fri Apr 30 09:53:31 CST 2021] Le_LinkCert='https://acme-v02.api.letsencrypt.org/acme/cert/03175a17da415b526b37dedf518750770ddc'
    [Fri Apr 30 09:53:32 CST 2021] Cert success.
    -----BEGIN CERTIFICATE-----
    CERTIFICATE CONTENT==
    -----END CERTIFICATE-----
    [Fri Apr 30 09:53:32 CST 2021] Your cert is in  /etc/letsencrypt/northcloudgate.com/northcloudgate.com.cer
    [Fri Apr 30 09:53:32 CST 2021] Your cert key is in  /etc/letsencrypt/northcloudgate.com/northcloudgate.com.key
    [Fri Apr 30 09:53:32 CST 2021] The intermediate CA cert is in  /etc/letsencrypt/northcloudgate.com/ca.cer
    [Fri Apr 30 09:53:32 CST 2021] And the full chain certs is there:  /etc/letsencrypt/northcloudgate.com/fullchain.cer
    [Fri Apr 30 09:53:32 CST 2021] Run reload cmd: nginx -s reload
    [Fri Apr 30 09:53:32 CST 2021] Reload success
    [Fri Apr 30 09:53:32 CST 2021] ===End cron===
  6. 重启 Ghost： 
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    $ cd /var/www/ghost
    $ ghost restart
    + sudo systemctl is-active ghost_northcloudgate-com
    + sudo systemctl restart ghost_northcloudgate-com
    ✔ Restarting Ghost

然后，就又可以看到安全的小白锁了，证书也有效了：

博客恢复]博客恢复]

彩蛋

在 Google ”您的连接不是私密连接“这个问题的时候，意外发现了一个神奇操作：

即，当你遇到“您的连接不是私密连接”错误的时候，直接在当前页面“凭空”输入 thisisunsafe，就可以进去页面了。注意是凭空，不是地址栏，你是看不到你所输入的东西的。

而且根据 reddit 上的说法，

  • 这个 bypass word 之前是 badidea，再之前是 danger。
  • Chrome 65 的时候把 badidea 改成了 thisisnotsafe 又改成了 thisisunsafe。而且还用 base64 加密了。
RedditReddit
bypass word 更改bypass word 更改

此外前文提到的 flask 服务也恢复正常了。

Reference

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