In this tutorial, you will learn how to configure the DHCP (Dynamic Host Configuration Protocol) service on Ubuntu Server 20.04. DHCP is a network protocol that allows for the automatic assignment of IP addresses and other network parameters to devices connected to a network. By configuring DHCP on Ubuntu Server, you can simplify network management by allowing devices to automatically connect and obtain an IP address within the specified range. Follow the steps in this tutorial to configure DHCP on your Ubuntu 20.04 server.
Step-by-step guide to configure the DHCP server on your network
DHCP (Dynamic Host Configuration Protocol) is a network protocol used to dynamically assign IP addresses to devices on a network. Instead of having to manually configure each device with an IP address, the DHCP server performs this task automatically. In this article, we will show you how to configure the DHCP server on Ubuntu Server 20.04.
Step 1: The first thing you need to do is install the DHCP server package. You can do this by running the following command in the terminal:
sudo apt-get install isc-dhcp-server
Step 2: Once the DHCP server package is installed, you need to configure it. To do this, open the configuration file located at /etc/dhcp/dhcpd.conf with the following command:
sudo nano /etc/dhcp/dhcpd.conf
Step 3: Now you need to configure the range of IP addresses that the DHCP server will assign to the devices on the network. To do this, add the following lines of code to the configuration file:
subnet 192.168.1.0 netmask 255.255.255.0 {
range 192.168.1.100 192.168.1.200;
option routers 192.168.1.1;
option domain-name-servers 8.8.8.8, 8.8.4.4;
}
In this example, we are assigning IP addresses in the range 192.168.1.100 to 192.168.1.200, with a subnet mask of 255.255.255.0. We are also configuring the default router and DNS servers.
Step 4: Once you have configured the DHCP server configuration file, you need to restart it for the changes to take effect. You can do this by running the following command:
sudo systemctl restart isc-dhcp-server
Step 5: Finally, you need to configure the network interface that the DHCP server will use to assign IP addresses. To do this, open the interface configuration file located at /etc/netplan/ with the following command:
sudo nano /etc/netplan/50-cloud-init.yaml
Step 6: Add the following lines of code to the interface configuration file:
network:
version: 2
renderer: networkd
ethernets:
enp0s3:
dhcp4: true
In this example, we are configuring the network interface enp0s3 to use the DHCP server.
Conclusion: Setting up DHCP server on a network can save you a lot of time and effort. By following this step-by-step guide, you will be able to easily configure DHCP server on your Ubuntu Server 20.04 network.
Guide to enable DHCP on Linux operating systems
Dynamic Host Configuration Protocol (DHCP) is a networking technology that allows devices to automatically obtain an IP address and other network configuration details. In this article, we will teach you how to configure DHCP on Ubuntu Server 20.04.
To enable DHCP on Ubuntu Server 20.04, follow these steps:
Step 1: The first thing you need to do is install the DHCP server on your Ubuntu Server system. To do this, open a terminal and type the following command:
sudo apt-get install isc-dhcp-server
Step 2: Once the DHCP server is installed, you need to configure the network details. Open the DHCP configuration file in the text editor of your choice with the following command:
sudo nano /etc/dhcp/dhcpd.conf
Step 3: In the configuration file, you will find a section that starts with “subnet.” In this section, you need to configure the range of IP addresses available to DHCP clients. Make sure to change the IP address and subnet mask based on your network. For example:
subnet 192.168.0.0 netmask 255.255.255.0 {
range 192.168.0.10 192.168.0.100;
option routers 192.168.0.1;
option domain-name-servers 8.8.8.8, 8.8.4.4;
}
Step 4: After you have configured the network details, you need to configure the network interface on which the DHCP server will be listening. To do this, open the network interface configuration file with the following command:
sudo nano /etc/netplan/50-cloud-init.yaml
In this file, you need to add the following lines of code at the end of the file:
dhcp4: true
Step 5: Finally, restart the DHCP service with the following command:
sudo systemctl restart isc-dhcp-server.service
With these steps, you have enabled DHCP on your Ubuntu Server 20.04 system. Now, devices on your network will be able to automatically obtain an IP address and other network configuration details without you having to configure them manually.