How To Install dhcp-relay on CentOS 8
Introduction
In this tutorial we learn how to install dhcp-relay on CentOS 8.
What is dhcp-relay
DHCP (Dynamic Host Configuration Protocol) is a protocol which allows individual devices on an IP network to get their own network configuration information (IP address, subnetmask, broadcast address, etc.) from a DHCP server. The overall purpose of DHCP is to make it easier to administer a large network. This package provides the ISC DHCP relay agent.
We can use yum or dnf to install dhcp-relay on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install dhcp-relay.
Install dhcp-relay on CentOS 8 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install dhcp-relay using dnf by running the following command:
sudo dnf -y install dhcp-relay
Install dhcp-relay on CentOS 8 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install dhcp-relay using yum by running the following command:
sudo yum -y install dhcp-relay
How To Uninstall dhcp-relay on CentOS 8
To uninstall only the dhcp-relay package we can use the following command:
sudo dnf remove dhcp-relay
dhcp-relay Package Contents on CentOS 8
/usr/lib/.build-id
/usr/lib/.build-id/fa
/usr/lib/.build-id/fa/a80c18b8cb4c5d2973bae79a2b454a2967273e
/usr/lib/systemd/system/dhcrelay.service
/usr/sbin/dhcrelay
/usr/share/man/man8/dhcrelay.8.gz
References
Summary
In this tutorial we learn how to install dhcp-relay on CentOS 8 using yum and dnf.