無法在 CentOS 7 上安裝 Let’s Encrypt 證書

我正在嘗試在 CentOS 7 上使用 Securing Apache with Let’s Encrypt 將 Let’s Encrypt SSL 證書安裝到我的網站。

我的網路伺服器是（包括版本）：Apache (cPanel)

我的託管服務提供商是：GoDaddy

按照此連結進行操作，STEP-1 和 STEP-2 成功

了解我的 VPS 中沒有設置防火牆

sudo yum install epel-release
sudo yum install httpd mod_ssl python-certbot-apache
sudo systemctl start httpd
systemctl status httpd
curl www.example.com ((Note: works))       
sudo certbot --apache -d example.com -d www.example.com

最後一條命令會產生錯誤，如下所示：

sudo: certbot: command not found

我試圖通過安裝 certbot

sudo yum install certbot

並安裝成功

 Installed:
 certbot.noarch 0:0.27.1-1.el7

Dependency Installed:
 audit-libs-python.x86_64 0:2.8.1-3.el7_5.1         checkpolicy.x86_64 0:2.5-6.el7                       libcgroup.x86_64 0:0.41-15.el7
 libsemanage-python.x86_64 0:2.5-11.el7             policycoreutils-python.x86_64 0:2.5-22.el7           pyOpenSSL.x86_64 0:0.13.1-3.el7
 python-IPy.noarch 0:0.75-6.el7                     python-cffi.x86_64 0:1.6.0-5.el7                     python-enum34.noarch 0:1.0.4-1.el7
 python-idna.noarch 0:2.4-1.el7                     python-ndg_httpsclient.noarch 0:0.3.2-1.el7          python-ply.noarch 0:3.4-11.el7
 python-pycparser.noarch 0:2.14-1.el7               python-requests.noarch 0:2.6.0-1.el7_1               python-requests-toolbelt.noarch 0:0.8.0-1.el7
 python-six.noarch 0:1.9.0-2.el7                    python-urllib3.noarch 0:1.10.2-5.el7                 python-zope-component.noarch 1:4.1.0-3.el7
 python-zope-event.noarch 0:4.0.3-2.el7             python-zope-interface.x86_64 0:4.0.5-4.el7           python2-acme.noarch 0:0.27.1-1.el7
 python2-certbot.noarch 0:0.27.1-1.el7              python2-configargparse.noarch 0:0.11.0-1.el7         python2-cryptography.x86_64 0:1.7.2-2.el7
 python2-future.noarch 0:0.16.0-6.el7               python2-josepy.noarch 0:1.1.0-1.el7                  python2-mock.noarch 0:1.0.1-9.el7
 python2-parsedatetime.noarch 0:2.4-5.el7           python2-pyasn1.noarch 0:0.1.9-7.el7                  python2-pyrfc3339.noarch 0:1.0-2.el7
 python2-requests.noarch 0:2.6.0-0.el7              python2-six.noarch 0:1.9.0-0.el7                     pytz.noarch 0:2016.10-2.el7
 setools-libs.x86_64 0:3.3.8-2.el7

Complete!

我再次嘗試為我的域申請 SSL 證書。

  sudo certbot --apache -d example.com -d www.example.com

這次它回來了

  Saving debug log to /var/log/letsencrypt/letsencrypt.log
  The requested apache plugin does not appear to be installed

/var/log/letsencrypt/letsencrypt.log

   2018-11-02 08:15:55,542:DEBUG:certbot.main:certbot version: 0.27.1
   2018-11-02 08:15:55,542:DEBUG:certbot.main:Arguments: ['--apache', '-d', 'example.com', '-d', 'www.example.com']
   2018-11-02 08:15:55,543:DEBUG:certbot.main:Discovered plugins: PluginsRegistry(PluginEntryPoint#manual,PluginEntryPoint#null,PluginEntryPoint#standalone,Plugi$
   2018-11-02 08:15:55,611:DEBUG:certbot.log:Root logging level set at 20
   2018-11-02 08:15:55,611:INFO:certbot.log:Saving debug log to /var/log/letsencrypt/letsencrypt.log
   2018-11-02 08:15:55,613:DEBUG:certbot.plugins.selection:Requested authenticator apache and installer apache
   2018-11-02 08:15:55,613:DEBUG:certbot.plugins.selection:No candidate plugin
   2018-11-02 08:15:55,614:DEBUG:certbot.plugins.selection:Selected authenticator None and installer None

注意：我用我的實際域替換了 example.com

更新 1

我試過了

 sudo yum install python-certbot-apache

它正在返回

 --> Finished Dependency Resolution
 Error: Package: python2-certbot-apache-0.27.1-1.el7.noarch (epel)
      Requires: mod_ssl
 You could try using --skip-broken to work around the problem
  You could try running: rpm -Va --nofiles --nodigest

這樣做有什麼問題？：

sudo yum install mod_ssl

sudo a2enmod ssl

（然後重新啟動apache）

引用自：https://unix.stackexchange.com/questions/479391