dhcp错误，日志如下

an  2 02:31:33 lylinux dhcpd: No subnet declaration for eth0 (192.168.88.128).

Jan  2 02:31:33 lylinux dhcpd: ** Ignoring requests on eth0.  If this is not what

Jan  2 02:31:33 lylinux dhcpd:    you want, please write a subnet declaration

Jan  2 02:31:33 lylinux dhcpd:    in your dhcpd.conf file for the network segment

Jan  2 02:31:33 lylinux dhcpd:    to which interface eth0 is attached. **

Jan  2 02:31:33 lylinux dhcpd:

Jan  2 02:31:33 lylinux dhcpd:

Jan  2 02:31:33 lylinux dhcpd: Not configured to listen on any interfaces!

Jan  2 02:31:33 lylinux dhcpd:

Jan  2 02:31:33 lylinux dhcpd: This version of ISC DHCP is based on the release available

Jan  2 02:31:33 lylinux dhcpd: on ftp.isc.org.  Features have been added and other changes

Jan  2 02:31:33 lylinux dhcpd: have been made to the base software release in order to make

Jan  2 02:31:33 lylinux dhcpd: it work better with this distribution.

Jan  2 02:31:33 lylinux dhcpd:

Jan  2 02:31:33 lylinux dhcpd: Please report for this software via the CentOS Bugs Database:

Jan  2 02:31:33 lylinux dhcpd:     http://bugs.centos.org/

Jan  2 02:31:33 lylinux dhcpd:

Jan  2 02:31:33 lylinux dhcpd: exiting.

原因：

没有读取到配置文件

解决：

# cp -f /usr/share/doc/dhcp-4.1.1/dhcpd.conf.sample  /etc/dhcp/dhcpd.conf

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Not configured to listen on any interfaces!