How To Install nss-mdns on CentOS 7
Introduction
In this tutorial we learn how to install nss-mdns on CentOS 7.
What is nss-mdns
nss-mdns is a plugin for the GNU Name Service Switch (NSS) functionality of the GNU C Library (glibc) providing host name resolution via Multicast DNS (aka Zeroconf, aka Apple Rendezvous, aka Apple Bonjour), effectively allowing name resolution by common Unix/Linux programs in the ad-hoc mDNS domain .local. nss-mdns provides client functionality only, which means that you have to run a mDNS responder daemon separately from nss-mdns if you want to register the local host name via mDNS (e.g. Avahi).
We can use yum or dnf to install nss-mdns on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install nss-mdns.
Install nss-mdns on CentOS 7 Using yum
Update yum database with yum using the following command.
sudo yum makecache
After updating yum database, We can install nss-mdns using yum by running the following command:
sudo yum -y install nss-mdns
Install nss-mdns on CentOS 7 Using dnf
If you don’t have dnf installed you can install DNF on CentOS 7 first.
Update yum database with dnf using the following command.
sudo dnf makecache
After updating yum database, We can install nss-mdns using dnf by running the following command:
sudo dnf -y install nss-mdns
How To Uninstall nss-mdns on CentOS 7
To uninstall only the nss-mdns package we can use the following command:
sudo dnf remove nss-mdns
References
Summary
In this tutorial we learn how to install nss-mdns on CentOS 7 using yum and dnf.
