Useful commands

Setting a hostname

hostnamectl set-hostname "ClusterTest1"

Setting network interface parameters with nmcli

sudo nmcli con edit eno12399
nmcli> set ipv4.addresses 192.168.2.6/24,192.168.3.6/24
nmcli> set connection.autoconnect yes
nmcli> print ipv4
ipv4.method:                            auto
ipv4.dns:                               --
ipv4.dns-search:                        --
ipv4.dns-options:                       ""
ipv4.dns-priority:                      0
ipv4.addresses:                         192.168.2.6/24,
192.168.3.6/24
nmcli> save

The configuration files are stored in /etc/NetworkManager/system-connections/eno12399.nmconnection.