Set up a DHCP server on centos7

Set up a DHCP server on centos7

In recent years, I want to build a complete Intranet in a virtual environment.

At present, the server has set up LNMP and DHCP

Which of the DNS has been tossing for a long time last night, but it has not passed yet. I plan to try again tonight. So I will replace it with win2008.

Write this article. The first is to take notes. The second is to take notes. There are still unsolved questions. I hope you can answer them for me. The third is to share it with us, who are also white.

Enter the subject

Environment or centos7 x64

Netease yum is used. First, let's install yum-y install dhcp.

After installation

Configuration file path/etc/dhcp. dhcpd. conf

There will be three lines of comments after opening. After translation, I forget what it means. It doesn't matter.

Below we will manually write the configuration file. There are not many requirements for beginners. So we can allocate a network segment.

subnet 192.168.100.0 netmask 255.255.255.0{# This is the subnet and mask allocation

 range 192.168.100. 20 192.168.100. 230; # The IP address assigned to the client ranges from 192.168.100.20 to 192.168.100.230.

 option routers 192.168.100. 1; # Set a gateway

 default-lease-time 600; # Default lease time

 max-lease-time 7200; # Maximum lease time

}

After the settings are complete, we start the service.

I use service dhcpd start

An error is reported when it is enabled. It is estimated that it is related to the environment variable settings.

Later, systemctl start dhcpd. service was started successfully.

One problem is how to write the configuration file to the automatically assigned DNS ip address,