I'm somewhat new to network interfaces and I'm confused with the difference between the 4 terms. I've seen the related question here: What is the difference between Network Manager and 'ifconfig' 'ifup', etc?, but this discusses the difference between all of the above and NetworkManager. I'm looking for something more specific between the 4 terms above.
I know that
interfaces refers to the file at
/etc/network/interfaces but all I see there is the
lo interface. I would assume that I would see
eth0 over there as well, as when I call
ifconfig. I also know that the
lo interfaces is activated by
ifup -a at boot time.
Looking forward to your explanations.