How can I change the domain name currently I am using.

[joydeep9932]

Dear Friends,
I have installed Zabbix 4.0.6 on Ubuntu 18.04. I am accessing the interface on - dev.somedomain.com/zabbix
I need to change the domain name as well as the subdomain. Like - serviceportal.newdomain.com/zabbix

I have noticed that, zabbix virtual host is configured on - /etc/zabbix/apache.conf . It'snot using any of my apache sites like - /etc/apache2/sites-available/myhost.conf

Thanks in advance.