How to install and configure DHCP Server in Ubunut 17.04

Install DHCP package

sudo apt-get install isc-dhcp-server

Make below entry in configuration file /etc/dhcp/dhcpd.conf

$ sudo vim  /etc/dhcp/dhcpd.conf

option domain-name "example.org";

option domain-name-servers ns1.example.org, ns2.example.org;

default-lease-time 600;

max-lease-time 7200;

ddns-update-style none;

authoritative;

subnet 10.0.0.0 netmask 255.255.255.0 {

     option routers 10.0.0.1;

     option subnet-mask 255.255.255.0;

     option domain-name-servers 8.8.8.8,4.2.2.2;

     range dynamic-bootp 10.0.0.200 10.0.0.254;

}

Start and enable service

sudo systemctl enable isc-dhcp-server.service

sudo systemctl start isc-dhcp-server.service

sudo systemctl status isc-dhcp-server.service

Error:

Jul 27 22:05:24 shahzad-virtual-machine systemd[1]: isc-dhcp-server.service: Main process exited, code=exited, status=1/FAILURE

Jul 27 22:05:24 shahzad-virtual-machine systemd[1]: isc-dhcp-server.service: Unit entered failed state.

Jul 27 22:05:24 shahzad-virtual-machine systemd[1]: isc-dhcp-server.service: Failed with result 'exit-code'.

Solutions:

Need to check correct parameter in configuration file and also need to check the subnet range according to LAN network.

Check configuration file

sudo dhcpd -t -cf /etc/dhcp/dhcpd.conf

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I am a passionate cloud and DevOps professional specializing in Linux and open-source solutions. Through this blog, I share my knowledge and experience with the community, offering tips and insights on cloud technologies and DevOps practices.