QUESTION :
I add some a line dns-nameservers 8.8.8.8 in my /etc/network/interfaces.
I want to reload this config without reboot.
However, when I tried:
sudo service networking restart
I got a Unit networking.service not found error
sudo /etc/init.d/networking restart
I got /etc/init.d/networking: command not found
How can I fix this?
I use Ubuntu Server 18.04.2 LTS
ANSWER :
Things have changed over time. Dependent on your installation, you want to check the service names with
systemctl list-unit-files | grep -i network
And, most likely in your case, it’s
systemctl restart NetworkManager
Since version 15.04, Ubuntu comes with systemd as default instead of initd. systemd-networkd exactly
Use systemctl restart networking