default profile persistency

Hi all

i can't find this information in documentation, maybe i don't know exactly where to search

I want to know where network manager persistently store the "default connection profile" information.

My distribution is CentOS 8

Example :

- for the same device (enp0s3)

- i have two connection profiles :

- enp0s3-static

and

- enp0s3-dhcp

these connection exist on my disk as two files

- directory : /etc/sysconfig/network-scripts

- file 1 : ifcfg-enp0s3-static

- file 2 : ifcfg-enp0s3-dynamic

i can't see any difference between these two file that can explain why one file is selected at boot and not the other

can you explain me please ?

Best regards from Paris.