How to configure DHCP Server in centos 7, redhat7, fedora linux (Complete Server & client)

How to configure DHCP Server in Ubuntu linux 18.04 (Complete Server & client)

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What is DHCP Server ?

DHCP (Dynamic Host Configuration Protocol) is a network protocol that enables a server to automatically assign an IP address and provide other related network configuration parameters to a client on a network, from a pre-defined IP pool.

This means that each time a client (connected to the network) boots up, it gets a “dynamic” IP address, as opposed to “static” IP address that never changes. The IP address assigned by a DHCP server to DHCP client is on a “lease”, the lease time can vary depending on how long a client is likely to require the connection or DHCP configuration.

In this tutorial, we will cover how to install and configure a DHCP server in CentOS/RHEL and Fedora distributions.

Testing Environment Setup

We are going to use following testing environment for this setup.

DHCP Server - CentOS 7
DHCP Clients - Centos 7 and Windows 10

How Does DHCP Work?

Before we move any further, let’s briefly explain how DHCP works:

When a client computer (configured to use DHCP) and connected to a network is powered on, it forwards a DHCPDISCOVER message to the DHCP server.
And after the DHCP server receives the DHCPDISCOVER request message, it replies with a DHCPOFFER message.
Then the client receives the DHCPOFFER message, and it sends a DHCPREQUEST message to the server indicating, it is prepared to get the network configuration offered in the DHCPOFFER message.
Last but not least, the DHCP server receives the DHCPREQUEST message from the client, and sends the DHCPACK message showing that the client is now permitted to use the IP address assigned to it.

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[redmanaaron]

Thank you for the help. I was not able to start the service but you helped me find the errors in my configuration file. My server is running now!

[Dankusez]

Even if its an old tutorial its still really good, thanks alot my friend, congrats

[samihadj-djilani]

Some heroes don't wear a cape, you just saved my subject

[techguy]

Nice Explanation Sir. Thankx for this video

[shahidimran]

Thank you very much today I have watched your video and u have helped me lots

[jamesfemy]

Thank you for this video. However, if I have internet connectivity on my router that the IP address is supplied in the configuration.
How will I go about this?

[nh]

hi my server is runnig perfectly, but i have problem at client side. i want to ask if there is any setting or sometithnig that we need to do at client side? also i want to ask about centos client is it different user or different virtual machine? thanks

[sleipnir]

Thanks a lot, very good explanation, but could you please do this with vlans?

[dhudibhai]

I receive error failed to start dhcp.service unit not found. I think this is due to nic. i have nic enp0s3. What should i do

[bhrudkz]

hello are your settings made for virtual machines?
or for a local network
just as they told me that when configuring DHCP, 2 physical adapters are needed

[mannyitzhak]

Hi nice video
wanted to know where in the DHCP server do you see the client table lease?

Thx

[devendranabar]

Hello Sir, I have configured the way you explained. However, DHCP is not assigning the IP from the range which I have configured in dhcpd.conf file. It is assigning randomly.
Plz help.

[cristinasilvera]

hola, tengo una consulta, mi centos 7 no corre el yum ni el wget ; estuve intentando y me dice que no puede correr esos comandos, estuve intentando instalarlos y tampoco, sabrás como solucionar ese problema

[IvanRodriguez-nvlj]

I have do exactly the same as you, step by step and I have this error: "Failed to get D-Bus connection: Operation not permitted." Please, if someone can help me. Thank you very much

[bombayboys]

Hi All,

I configured DHCP Server in the CentOS7 machine and the range I took was 192.168.0.50 to 192.168.0.125.
It works when I tried from two CentOS 6.4 machines.
One of them got an IP of 192.168.0.50 and the other got 192.168.0.53.
When I am trying from a CentOS7 client, the IP it gets is 192.168.0.10
I have changed the bootproto to dhcp and onboot to yes .
So just wondering why it did not get the IP of the DHCP Server range.

Please help.

[benjaminwe]

hello boss, do you have an updated version for this ?

[GhOstKillah]

Love the way u teach sir!! Any chance you can do pxeboot with kickstart? For centos.. would highly appreciate but ur work is amazing nevertheless!!

[SANDEEPPATIL-mced]

job for dhcpd.service failed because the control process exited with error code

[jamilkeithdamias]

nice bro thank you so much, btw do you have video on how to configure linux centOs ntp, ftp and http?

[anyone]

Tell me whether client side will have bridge or Nat configuration