Ubuntu/Debian Network Configuration with nmcli
Show devices and connections
nmcli device status
nmcli connection showReplace "Wired connection 1" with the actual connection name. If no Ethernet connection exists, create one first:
sudo nmcli connection add con-name "eth0-static" ifname eth0 type ethernetUse DHCP on Ethernet
sudo nmcli connection modify "Wired connection 1" ipv4.method auto
sudo nmcli connection up "Wired connection 1"Set a static Ethernet address
sudo nmcli connection modify "Wired connection 1" \
ipv4.method manual \
ipv4.addresses 192.168.1.100/24 \
ipv4.gateway 192.168.1.1 \
ipv4.dns "8.8.8.8 114.114.114.114"
sudo nmcli connection up "Wired connection 1"Connect to Wi-Fi with DHCP
sudo nmcli radio wifi on
nmcli device wifi list
sudo nmcli device wifi connect "SSID" password "PASSWORD"Set a static address for an existing Wi-Fi connection
sudo nmcli connection modify "SSID" \
ipv4.method manual \
ipv4.addresses 192.168.1.101/24 \
ipv4.gateway 192.168.1.1 \
ipv4.dns "8.8.8.8 114.114.114.114"
sudo nmcli connection up "SSID"