Problems serving webpages

Debian version 12.11
ISPC_APP_VERSION', '3.3.0p1'

I have a new installation on a new host that I have not used before.
I can access ISPconfig and it appears to be functioning properly, but can not see/display webpages/sites.

I really do not know what the problem is but Assume it is a problem is associated with setting up network/interfaces

The original interfaces file was:
.
# The primary network interface
allow-hotplug enp2s0
iface enp2s0 inet static
address ???.12.225.98/29
gateway ???.12.225.97
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 8.8.8.8
dns-search MyHost.net

I wanted to change it to something like:

# The primary network interface
auto enp2s0
iface enp2s0 inet static

address ???.12.225.98
netmask 255.255.255.248
network ???.12.225.96
broadcast ???.12.225.103
gateway ???.12.225.97

# The second network interface
auto enp2s0:0
iface enp2s0:0 inet static
address ???.12.225.99
netmask 255.255.255.248
network ???.12.225.96
broadcast ???.12.225.103
gateway ???.12.225.97

but was not able to properly operate systemctl restart networking or other to make it work.
ifupdown is already the newest version.

Not sure what the best way to proceed, the proper interfaces file or the best way to restart the networking.
Thanks for your help

 

datacenter.
https://www.nocix.net/

 

Thanks for the reply.
Unfortunately,
"
We do not configure server IP's other than the 1 that gets it online, the other IP's are unassigned so you can configure them on the server how you like.

We do not assist with additional IP configuration in any way. Sorry for the inconvenience,
"
Looks like I am on my own and need to play around with this.
Any suggestions would be helpful.
Thanks,

 

https://cloudspinx.com/add-secondary-ip-address-on-ubuntu/
should be the same for debian

or if you're trying to setup vlans
https://askubuntu.com/questions/1451340/use-netplan-to-setup-two-tagged-vlans