How To Install isc-dhcp-relay on Ubuntu 20.04
Introduction
In this tutorial we learn how to install isc-dhcp-relay on Ubuntu 20.04.
What is isc-dhcp-relay
isc-dhcp-relay is:
This is the Internet Software Consortium’s DHCP relay.
Installing this package will make the machine a DHCP relay, which requires a reachable DHCP or BOOTP server in order to function.
Extra documentation can be found in the package isc-dhcp-common.
Package: isc-dhcp-relay Architecture: amd64 Version: 4.4.1-2.1ubuntu5 Priority: optional Section: universe/net Source: isc-dhcp Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: Debian ISC DHCP Maintainers [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 613 Depends: debconf (>= 0.5) | debconf-2.0, libc6 (>= 2.15), libdns-export1109, libirs-export161, libisc-export1105, lsb-base (>= 3.0-6), debianutils (>= 2.8.2) Recommends: isc-dhcp-common Conflicts: dhcp-relay Filename: pool/universe/i/isc-dhcp/isc-dhcp-relay_4.4.1-2.1ubuntu5_amd64.deb Size: 191736 MD5sum: 64f2e1f21f791e7ab3111e385e1de448 SHA1: 69773de754753a15072ff6fb067f274936dbdea7 SHA256: fdb278b06f8559705b2415d065fb6a94a9186bf56fb0f18af4e0bf57906dd7b2 Homepage: http://www.isc.org Description-en: ISC DHCP relay daemon This is the Internet Software Consortium’s DHCP relay.
Installing this package will make the machine a DHCP relay, which requires a reachable DHCP or BOOTP server in order to function.
Extra documentation can be found in the package isc-dhcp-common.
There are three methods to install isc-dhcp-relay on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install isc-dhcp-relay Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install isc-dhcp-relay using apt-get by running the following command:
sudo apt-get -y install isc-dhcp-relay
Install isc-dhcp-relay Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install isc-dhcp-relay using apt by running the following command:
sudo apt -y install isc-dhcp-relay
Install isc-dhcp-relay Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install isc-dhcp-relay using aptitude by running the following command:
sudo aptitude -y install isc-dhcp-relay
How To Uninstall isc-dhcp-relay on Ubuntu 20.04
To uninstall only the isc-dhcp-relay package we can use the following command:
sudo apt-get remove isc-dhcp-relay
Uninstall isc-dhcp-relay And Its Dependencies
To uninstall isc-dhcp-relay and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove isc-dhcp-relay
Remove isc-dhcp-relay Configurations and Data
To remove isc-dhcp-relay configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge isc-dhcp-relay
Remove isc-dhcp-relay configuration, data, and all of its dependencies
We can use the following command to remove isc-dhcp-relay configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge isc-dhcp-relay
References
Summary
In this tutorial we learn how to install isc-dhcp-relay package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
