启用root账号
bash
sudo passwd root
sudo nano /etc/ssh/sshd_config
PermitRootLogin yes
删除非root用户
bash
userdel usos
静态 ip
vi /etc/netplan/50-cloud-init.yaml
yml
network:
ethernets:
ens33:
dhcp4: false
dhcp6: false
addresses:
- 10.0.35.8/24
routes:
- to: default
via: 10.0.35.250
nameservers:
addresses:
- 223.5.5.5
- 223.6.6.6
search:
- localhost
- local
version: 2
时间设置
timedatectl set-timezone Asia/Shanghai
查看lvm磁盘占用
# 查看
df -h
fdisk -l
# 查看磁盘挂载情况
lsblk
# 查看lvm卷组的信息,如果看到 Free PE / Size > 0,表示还有扩容空间。
vgdisplay
# 扩容
#lvextend -L 10G /dev/mapper/ubuntu--vg-ubuntu--lv //增大或减小至19G
#lvextend -L +10G /dev/mapper/ubuntu--vg-ubuntu--lv //增加10G
#lvreduce -L -10G /dev/mapper/ubuntu--vg-ubuntu--lv //减小10G
#lvresize -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv //按百分比扩
# 扩容
sudo lvresize -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
# 生效
sudo resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv