How To Install unbound on CentOS 7
Introduction
In this tutorial we learn how to install unbound on CentOS 7.
What is unbound
Unbound is a validating, recursive, and caching DNS(SEC) resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modular components, so that also DNSSEC (secure DNS) validation and stub-resolvers (that do not run as a server, but are linked into an application) are easily possible.
We can use yum or dnf to install unbound on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install unbound.
Install unbound on CentOS 7 Using yum
Update yum database with yum using the following command.
sudo yum makecache
After updating yum database, We can install unbound using yum by running the following command:
sudo yum -y install unbound
Install unbound 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 unbound using dnf by running the following command:
sudo dnf -y install unbound
How To Uninstall unbound on CentOS 7
To uninstall only the unbound package we can use the following command:
sudo dnf remove unbound
References
Summary
In this tutorial we learn how to install unbound on CentOS 7 using yum and dnf.