Hello,

I have 2 linode servers with CentOS 7 installed with Network manager and Firewalld.
I have the external ip and internal ip. The external ip i would like to use for the webservers. The internal ip i would like to use for a Xtradb percona cluster.

I would like to have the external ip connected to the firewalld zone "DMZ" with device eth0 and the internal ip connected to the firewalld zone "INTERNAL" with a eth0:0 device.

Without the firewalld / network manager It seems possible. Is it also possible with the firewalld and network manager?
My problem so far is that i cannot setup an extra virtual device eth0:0 which i connect to the zone 'internal'
Because when i setup a second connection the field "DEVICE" is empty.
Perhaps you have a link to a website with explanation which i can follow-up?
Thank you very much