CentOS DHCP服務器恢復步驟如下：
sudo systemctl stop dhcpd
/etc/dhcp/dhcpd.conf）：sudo cp /path/to/backup/dhcpd.conf.bak /etc/dhcp/dhcpd.conf
sudo systemctl start dhcpd
sudo systemctl status dhcpd
說明：
/var/lib/dhcp/dhcpd.leases文件復制回原路徑。journalctl -xe查看日志排查錯誤。
