What are the steps to set up a DHCP server in Ubuntu?

6 months ago

2 minutes

The steps to set up a DHCP server on Ubuntu are as follows:

Install DHCP server software: Enter the following command in the terminal to install ISC DHCP server software:

sudo apt-get update
sudo apt-get install isc-dhcp-server

The configuration file for the DHCP server is located at /etc/dhcp/dhcpd.conf.

subnet 192.168.1.0 netmask 255.255.255.0 {
  range 192.168.1.10 192.168.1.100;
  option routers 192.168.1.1;
  option domain-name-servers 192.168.1.1;
  option domain-name "example.com";
}

The sample configuration file above specifies the range of IP addresses, gateway, DNS servers, and domain that the DHCP server will allocate.

The file located at /etc/network/interfaces

auto eth0
iface eth0 inet static
    address 192.168.1.1
    netmask 255.255.255.0

In the example configuration file above, the network interface eth0 is set to a static IP address of 192.168.1.1.

Start the DHCP server: Initiate the DHCP server and configure it to start automatically at boot.

sudo systemctl start isc-dhcp-server
sudo systemctl enable isc-dhcp-server

Verify the DHCP server: You can verify if the DHCP server is functioning properly by enabling DHCP on client devices and connecting to the network to see if they successfully receive an IP address assigned by the DHCP server.

The above are the basic steps to set up a DHCP server in Ubuntu, further configuration and adjustments may be necessary depending on actual requirements and network environment.