1 netplan

也适用于ubuntu server
修改 sudo vim /etc/netplan/50-cloud-init.yaml文件

network:
    ethernets:
        enp2s0:
                  addresses: [10.0.230.87/24,192.168.1.87/24]
                  dhcp4: no
                  gateway4: 10.0.230.1
                  optional: no
                  nameservers:
                          addresses: [10.0.230.1]

这样设置后可能和界面设置的ip冲突，保存后
sudo netplan apply

2 修改界面设置的ip

cd  /etc/NetworkManager/system-connections
ls
sudo vim Profile\ 1

[connection]
id=Profile 1
uuid=0769f567-6a3d-4478-ae6b-b3df3fb741cc
type=ethernet
permissions=
timestamp=1599828840

[ethernet]
mac-address-blacklist=

[ipv4]
address1=10.0.230.89/24,10.0.230.1
dns=192.168.1.1;
dns-search=
ignore-auto-dns=true
method=manual

[ipv6]
addr-gen-mode=stable-privacy
dns-search=
method=auto

3. 临时生效

ifconfig -a 查看所有网卡
sudo ifconfig eth1 up 启用eth1
sudo ifconfig eth1 10.0.230.86 netmask 255.255.255.0
sudo route add default gw 10.0.230.1

修改网关
sudo vim /etc/resolv.conf 修改nameserver为 10.0.230.1