我之前发布了这个问题，但我想我写它的方式并不清楚。所以我删除了它，这里又是我能想到的尽可能多的信息。
我使用戴尔尺寸 2400 的旧计算机部件创建了一个服务器。我安装了带有 Linux 4.15.0-72-generic 内核的 Ubuntu 16.04.6 LTS。我安装了 mysql-server、apache2、certbot、pyton3、python-apache-certbot、php7.0、ssh、vsftpd，然后将我安装的所需端口转发到内部 ip。(192.168.1.23)。
然后我在服务器上设置了一个 wordpress 站点。问题是我设置了虚拟主机文件（如下所示），但是为了使站点正常工作，我必须使用网络内部 ip 来加载站点。
这是虚拟主机文件：
<IfModule mod_ssl.c>
<VirtualHost 192.168.1.23:443>
# The ServerName directive sets the request scheme, hostname and port that
# the server uses to identify itself. This is used when creating
# redirection URLs. In the context of virtual hosts, the ServerName
# specifies what hostname must appear in the request's Host: header to
# match this virtual host. For the default virtual host (this file) this
# value is not decisive as it is used as a last resort host regardless.
# However, you must set it for any further virtual host explicitly.
#ServerName www.example.com
ServerAdmin webmaster@localhost
DocumentRoot /var/www/domain.com/public_html
# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the loglevel for particular
# modules, e.g.
#LogLevel info ssl:warn
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
# For most configuration files from conf-available/, which are
# enabled or disabled at a global level, it is possible to
# include a line for only one particular virtual host. For example the
# following line enables the CGI configuration for this host only
# after it has been globally disabled with "a2disconf".
#Include conf-available/serve-cgi-bin.conf
ServerName domain.com
SSLCertificateFile /etc/letsencrypt/live/domain.com/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/domain.com/privkey.pem
Include /etc/letsencrypt/options-ssl-apache.conf
</VirtualHost>
</IfModule>
~
请记住，这是工作的虚拟主机。
当我将其更改为域名 (domain.com:443) 时，它应该是不起作用的。
（端口 80 上的相同问题。）
我需要一个内部 dns 还是别的什么？
我尝试安装 bind 但要么我把它搞砸了，要么不是这样......或者两者兼而有之......老实说更倾向于两者。
无论如何，我希望这是足够的信息，并且有人能够对此有所了解。我希望能够在此服务器上托管另一个站点。