一、Ubuntu最小化安装
1、修改内核参数，修改网卡名称，将ens33改为eth0
root@ubuntu:vim /etc/default/grub GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0" root@ubuntu:update-grub
2、修改系统的IP地址
root@node4:~# vim /etc/netplan/50-cloud-init.yaml
network:
version: 2
renderer: networkd
ethernets:
eth0:
dhcp4: no
addresses: [192.168.7.110/24]
gateway4: 192.168.7.2
nameservers:
addresses: [192.168.7.2]
3、应用ip配置并重启测试：
root@node4:~# netplan apply
4、修改apt源仓库/etc/apt/sources.list:1804版本的Ubuntu，参考阿里云仓库：https://developer.aliyun.com/mirror/ubuntu?spm=a2c6h.13651102.0.0.53322f701347Pq
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
5、安装常用命令
# apt-get update #更新 # apt-get purge ufw lxd lxd-client lxcfs lxc-common #卸载不用的包 # apt-get install iproute2 ntpdate tcpdump telnet traceroute nfs-kernel-server nfs-common \ lrzsz tree openssl libssl-dev libpcre3 libpcre3-dev zlib1g-dev ntpdate tcpdump telnet traceroute \ gcc openssh-server lrzsz tree openssl libssl-dev libpcre3 \ libpcre3-dev zlib1g-dev ntpdate tcpdump telnet traceroute iotop unzip zip
6、重启linux系统，然后做快照即可。
# reboot
7、想要root用户登录，先sudo切换到root用户，然后修改ssh服务vim /etc/ssh/sshd_config
root@node4:~# sudo su root@node4:~# vim /etc/ssh/sshd_config PermitRootLogin yes # 允许root用户登录即可 UseDNS no # 避免对自己ssh进行反向解析 root@node4:~# systemctl restart sshd # 重启sshd服务就可以root登录