启用SSH，并启用远程root登录

设置root密码：sudo passwd root

启用root的ssh登录：vi /etc/ssh/sshd_config；

添加PermitRootLogin yes；

重启SSD服务systemctl restart sshd

如果ssh服务未开启，则要开启ssh服务：sudo systemctl enable ssh

重启SSH服务：systemctl restart ssh

客户端清除ssh证书信息：ssh-keygen -R *.*.*.*

网络配置修改

没有NetworkManager需要安装：sudo apt install network-manager

启用NetworkManager：

vi /etc/NetworkManager/NetworkManager.conf

修改managed=false为managed=true

使用NetworkManager管理网络：

vi /etc/netplan/00-installer-config.yaml

# This is the network config written by 'subiquity'
network:
 version: 2
 renderer: NetworkManager

配置IP

nmcli connection add con-name ens33 ifname ens33 type ethernet ipv4.method manual ipv4.addresses 192.168.91.30/24 ipv4.gateway 192.168.91.2 ipv4.dns 114.114.114.114 autoconnect yes

应用配置

netplan apply & systemctl restart NetworkManager

或者直接重启reboot