--- tags: Linux, Ubuntu --- # Ubuntu IP Setting [![hackmd-github-sync-badge](https://hackmd.io/ahH8TprOTuWnqlqaya0LBA/badge)](https://hackmd.io/ahH8TprOTuWnqlqaya0LBA) 1. 查看網路卡介面 ```bash >> ifconfig enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.0.2.15 netmask 255.255.255.0 broadcast 10.0.2.255 inet6 fe80::49cd:d69a:1408:7016 prefixlen 64 scopeid 0x20<link> ether 08:00:27:ef:e7:f0 txqueuelen 1000 (Ethernet) RX packets 930 bytes 106715 (104.2 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 642 bytes 70490 (68.8 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 12 bytes 984 (984.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 12 bytes 984 (984.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ``` 2. 產生網路介面設定檔 ```>> sudo netplan generate``` 3. 打開 ```/etc/netplan/01-netcfg.yaml``` 網路介面設定檔（或其他的設定檔），填入以下資訊 ```bash # 網路介面設定檔 network: version: 2 renderer: networkd ethernets: enp0s3: addresses: [ 192.168.56.10/24 ] gateway4: 192.168.56.1 nameservers: search: [ your.domain.tw ] addresses: [ 8.8.8.8, 9.9.9.9 ] ``` 4. 測試並套用網路介面設定檔 ```bash >> sudo netplan try #120 秒內沒有進行確認，就會自動恢復成原來的網路設定，這個功能可以避免在遠端 #更改設定時，不小心把自己檔在外面。 ``` > 也可以直接套用網路介面設定檔 ```>> sudo netplan apply``` 5. 查看網路設定 ```bash >> ifconfig enp0s3 enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.56.10 netmask 255.255.255.0 broadcast 192.168.56.1 inet6 2001:e10:2000:17:e643:4bff:fe20:bddb prefixlen 64 scopeid 0x0<global> inet6 fe80::e643:4bff:fe20:bddb prefixlen 64 scopeid 0x20<link> ether e4:43:4b:20:bd:db txqueuelen 1000 (Ethernet) RX packets 14028 bytes 945915 (945.9 KB) RX errors 0 dropped 686 overruns 0 frame 0 TX packets 617 bytes 123948 (123.9 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device memory 0x9e100000-9e17ffff ```