ubuntu 고정 ip 할당

1. ip 

$ ifconfig
ens160    Link encap:Ethernet  HWaddr 12:0c:29:3a:id:ab
          inet addr:192.168.10.30  Bcast:192.168.10.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:593671 errors:0 dropped:0 overruns:0 frame:0
          TX packets:297404 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:460588158 (460.5 MB)  TX bytes:112335278 (112.3 MB)
 
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:91186 errors:0 dropped:0 overruns:0 frame:0
          TX packets:91186 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1
          RX bytes:12822719 (12.8 MB)  TX bytes:12822719 (12.8 MB)
 

* 위에 표기된 내용은 임의의 값입니다.

2. interfaces 파일 편집

$ sudo vi /etc/network/interfaces
 

2-1. interfaces 수정 전

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
 
source /etc/network/interfaces.d/*
 
# The loopback network interface
auto lo
iface lo inet loopback
 
# The primary network interface
auto ens160
iface ens160 inet dhcp
 

2-2 interfaces 수정 후

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
 
source /etc/network/interfaces.d/*
 
# The loopback network interface
auto lo
iface lo inet loopback
 
# The primary network interface
auto ens160
iface ens160 inet static
        address 192.168.10.30
        netmask 255.255.255.0
        broadcast 192.168.10.255
        gateway 192.168.10.1
        network 192.168.10.0
        dns-nameservers 8.8.8.8
 

* 위와 같이 수정 후 저장합니다.

3. networking.service 재시작

$ sudo systemctl restart networking.service
 

4. 시스템 재부팅

$ sudo reboot now