How to solve the problem of failure to start dhcp in centos

First let’s take a look at the process of installing DHCP:

1. Create a folder to mount the CD image

mkdir /mnt/cdrom

2. Mount the image

mount /dev/cdrom /mnt/cdrom

3. Modify the yum configuration file

vim /etc/yum.repos.d/CentOS-Media.repo

Modify the baseurl to the previous CD image mount point

gpgcheck =0  关闭自检
enable=1 启动

4. Rename CentOS-Base.repo to CentOS-Base.repo_back to invalidate network yum

mv CentOS-Base.repo CentOS-Base.repo_back

5. Modify the DHCP configuration file

vim /etcdhcp/dhcpd.conf

in Before this, I had been referring to books and methods to modify the configuration file, but it failed when I finally turned on the DHCP server.

Solution process:

I saw the sentence "see /user/share/doc/dhcp*/dhcpd.comf.sample" in the DHCP configuration file, so I went in I checked

 cat /user/share/doc/dhcp*/dhcpd.comf.sample

, which is full of comments. But there is a similar content in the configuration file, as follows:

There is no following configuration in it:

ddns update-style interim;
igmore client-updates;

So
in the configuration file is changed

ddns update-style interim;
igmore client-updates;

Delete.

Restart DHCP again

Successfully.

Recommended related tutorials: centos tutorial

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