实验-修该网卡默认命名规则

vim /etc/default/grub

GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"

update-grub

shutdown -r now

实验-临时配置IP地址

ifconfig

ifconfig ens33 192.168.200.201/24

ifconfig

实验-IP地址的配置

systemctl restart NetworkManager

nmcli connection modify 有线连接 ipv4.method manual ipv4.addresses 192.168.200.201/24 ipv4.gateway 192.168.200.2 ipv4.dns 114.114.114.114

nmcli connection up 有线连接

实验-ipv6地址添加

nmcli connection modify 有线连接 ipv6.method manual ipv6.addresses 2001::1/64

nmcli connection down 有线连接

nmcli connection up 有线连接

ping6 2001::1

实验-多配置文件管理网卡

nmcli connection add type ethernet con-name home ifname ens34

nmcli connection modify ens34 ipv4.method manual ipv4.addresses "10.0.0.1/24 10.0.0.1" ipv4.dns 10.0.0.1

nmcli connection down ens34

nmcli connection up ens34

实验-新增网卡

新添加一块网卡

nmcli device show可以发现新增了一块网卡

nmcli connection add type ethernet enoxx ifname enoxx

nmcli connection modify enoxx ipv4.method manual ipv4.addresses "192.168.200.201/24 192.168.200.2" ipv4.dns 192.168.200.2 connection.autoconnect yes

systemctl restart NetworkManager

ifconfig

实验-路由设置

route -n

route add -net 192.168.200.0 netmask 255.255.255.0 gw 192.168.200.2

route del -net 192.168.200.0 netmask 255.255.255.0 gw 192.168.200.2

实验-通过配置文件修改地址

vim /etc/NetworkManager/system-connections/ens33.nmconnection

[connection]

id=ens33

uuid=295fe3c5-8646-3687-6241-259390fe3e3b

type=ethernet

interface-name=eth0

permissions=

timestamp=1586329658

[ethernet]

mac-address=00:0C:29:5F:D3:90

mac-address-blacklist=

[ipv4]

address1=192.168.200.201/24,192.168.200.2

dns=192.168.200.2;

dns-search=

may-fail=false

method=manual

[ipv6]

addr-gen-mode=stable-privacy

dns-search=

ip6-privacy=0

method=auto