According to the link. https://www.howtoinstall.me/ubuntu/18-04/avahi-daemon/
The method it provides for installing mDNS consists of just two lines of command:
sudo apt update
sudo apt install avahi-daemon
According to the link: What is mDNS? Is it possible to make mDNS query without mdns service running?
One friend replied:
Ubuntu systems just need avahi-daemon and libnss-mdns installed.
So the first question is :
What is the standard method for installing mDNS on ubuntu 18.04?
The second question is:
After installing mDNS, how should I configure mDNS?
The third question is:
How can I verify the functionality of mDNS?