Now I’ve got wired connectivity into the basement, I dont need to have the uplink between the comms pc and the router on Wifi. The interface shown here as wlp3s0 will now be called eth1
This article basically describes the process
https://unix.stackexchange.com/questions/205010/centos-7-rename-network-interface-without-rebooting/219277
However, I’ll also need to change the /etc/sysconfig/network-scripts/ifcfg-eth1 file to contain the IP address previously assigned to wlp3s0, and run
ip link set dev wlp3s0 down
service network restart
This is to ensure that incoming requests from the internet hit the new adapter, not the old one, which may be reassigned to something else later on.
Next, I’ll need to check firewalld has kept up with the changes
firewall-cmd --get-active-zones
and check eth1 is in the external zone