auto4certbot/docs/apache2_examples/apache2-subdomen1/apache2.conf

DefaultRuntimeDir /var/run/apache2-subdomen1
PidFile /var/run/apache2-subdomen1/apache2.pid

Timeout 300
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 5

User www-data
Group www-data
HostnameLookups Off

ErrorLog /var/log/apache2-subdomen1/apache2.error.log
LogLevel warn

IncludeOptional mods-enabled/*.load
IncludeOptional mods-enabled/*.conf

Include ports.conf
DocumentRoot /var/www/subdomen1

<Directory /usr/share>
  AllowOverride None
  Require all granted
</Directory>

<Directory /var/www>
  Options Indexes FollowSymLinks
  AllowOverride None
  Require all granted
</Directory>

AccessFileName .htaccess

<FilesMatch "^\.ht">
  Require all denied
</FilesMatch>

LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined
LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %O" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent

IncludeOptional conf-enabled/*.conf
IncludeOptional sites-enabled/*.conf