/etc/apache2/sites-available/ports.confを以下のように編集.
... Listen 40980 ...
/etc/apache2/sites-available/siteA.confを以下のように編集
... <VirtualHost *:40980> ServerAdmin webmaster@localhost ServerName ***.*** ServerAlias ***.***.*** DocumentRoot /var/www/*** </VirtualHost> ...
Apacheを再起動.
# systemctl reload apache2.service
ファイアウォールを許可.
# ufw allow 40980 # ufw status
Status: active To Action From -- ------ ---- Apache ALLOW Anywhere OpenSSH ALLOW Anywhere 40980 ALLOW Anywhere Apache (v6) ALLOW Anywhere (v6) OpenSSH (v6) ALLOW Anywhere (v6) 40980 (v6) ALLOW Anywhere (v6)