安裝Ubuntu DHCP Server

安裝環境Ubuntu 12.04, 14.04 或 16.04
安裝套件

 
                         $  
                         sudo  
                         apt-get  
                         install  
                         isc-dhcp-server -y

配置DHCP Server

 
                         $  
                         sudo  
                         vim  
                         /etc/dhcp/dhcpd 
                         .conf

新增下面內容：

 
                         default-lease-time 600; 
                        
                         max-lease-time 7200; 
                        
                         option domain-name "mydomain.example"; 
                        
                         subnet 192.168.1.0 netmask 255.255.255.0 { 
                        
                         range 192.168.1.10 192.168.1.100; 
                        
                         range 192.168.1.150 192.168.1.200; 
                        
                         option subnet-mask 255.255.255.0; 
                        
                         option broadcast-address 192.168.1.255; 
                        
                         option routers 192.168.1.1; 
                        
                         option domain-name-servers 192.168.1.1, 192.168.1.2; 
                        
                         }

修改/etc/default/isc-dhcp-server

 
                         $  
                         sudo  
                         vim  
                         /etc/default/isc-dhcp-server

找到INTERFACES=""這行並修改，指定DHCP Server所使用的網路卡：

INTERFACES="eth2"

修改/etc/network/interfaces

 
                         $  
                         sudo  
                         vim  
                         /etc/network/interfaces

配置eth2網路卡，新增下面內容：

 
                         auto eth2 
                        
                         iface eth2 inet static 
                        
                         address 192.168.1.1 
                        
                         netmask 255.255.255.0

讓eth2網路卡設定生效

 
                         # Ubuntu 14.04 
                        
                         $  
                         sudo  
                         ifdown eth2;  
                         sudo  
                         ifup eth2

 
                         # Ubuntu 12.04 
                        
                         $  
                         sudo  
                         service networking restart

重新啟動DHCP Server

 
                         $  
                         sudo  
                         service isc-dhcp-server restart

DHCP Server 啟動|停止|狀態

 
                         $  
                         sudo  
                         service isc-dhcp-server start|stop|status

開機不要啟動DHCP Server

 
                         # Ubuntu 16.04 
                        
                         $  
                         sudo  
                         update-rc.d isc-dhcp-server disable

 
                         # Ubuntu 14.04 與 Ubuntu 12.04 
                        
                         $  
                         echo  
                         manual |  
                         sudo  
                         tee  
                         -a  
                         /etc/init/isc-dhcp-server 
                         .override

開機啟動DHCP Server

 
                         # Ubuntu 16.04 
                        
                         $  
                         sudo  
                         update-rc.d isc-dhcp-server  
                         enable

 
                         # Ubuntu 14.04 與 Ubuntu 12.04 
                        
                         $  
                         sudo  
                         rm  
                         -f  
                         /etc/init/isc-dhcp-server 
                         .override

安裝環境Ubuntu 10.04
安裝套件

 
                         $  
                         sudo  
                         apt-get  
                         install  
                         dhcp3-server -y