测试网络工具
- 在命令行下测试网络的连通性
显示主机名
hostname
测试网络连通性
ping
显示正确的路由表
ip route- 跟踪路由
traceroute
tracepath
mtr- 确定名称服务器使用
nslookup
host
dig
Ubuntu网络配置
官网文档:
https://help.ubuntu.com/lts/serverguide/network-configuration.html.zh-CN
配置自动获取IP
cat /etc/netplan/01-netcfg.yaml
network:
version: 2
renderer: networkd
ethernets:
ens33:
dhcp4: yes
修改网卡配置文件后需执行命令生效:netplan apply
配置静态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
修改主机名
hostnamectl set-hostname ubuntu1904