測試網絡工具
- 在命令行下測試網絡的連通性
顯示主機名
hostname
測試網絡連通性
ping
顯示正確的路由表
ip route- 跟蹤路由
traceroute
tracepath
mtr- 確定名稱服務器使用
nslookup
host
dig
Ubuntu網絡配置
官網文檔:
https://help.ubuntu.com/lts/serverguide/network-configuration.html.zh-CN
配置自動獲取IP
cat /etc/netplan/01-netcfg.yaml
network:
version: 2
renderer: networkd
ethernets:
ens33:
dhcp4: yes
修改網卡配置文件後需執行命令生效:netplan apply
配置靜態IP:
cat /etc/netplan/01-netcfg.yaml
network:
version: 2
renderer: networkd
ethernets:
eth0:
addresses:
- 192.168.6.10/24
- 10.10.10.10/24
gateway4: 192.168.6.1
nameservers:
search: [mydomain, otherdomain]
addresses: [223.5.5.5, 8.8.8.8, 1.1.1.1]
查看ip和gateway
ip addr
route -n
查看DNS
- ls -l /etc/resolv.conf
lrwxrwxrwx 1 root root 39 Dec 12 11:36 /etc/resolv.conf
\> ../run/systemd/resolve/stub-resolv.conf- systemd-resolve --status
修改主機名
hostnamectl set-hostname ubuntu1904