1.激活，安裝，輸入name，密碼之后更新可以選擇更換清華源。

sudo cp /etc/apt/sources.list /etc/apt/sources.list.copy

sudo vim /etc/apt/sources.list

2. 使用dG全部刪除內(nèi)容，按i變成輸入模式，直接粘貼下面的鏡像源，然后：wq保存退出

# 默認(rèn)注釋了源碼鏡像以提高 apt update 速度，如有需要可自行取消注釋

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse

# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse

# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse

# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse

# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse

# 預(yù)發(fā)布軟件源，不建議啟用

# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse

# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse

3.?sudo apt-get update?

就可以看到清華源鏡像運(yùn)行

4. ssh

sudo apt-get remove openssh-server

sudo apt-get install openssh-server

sudo vim /etc/ssh/sshd_config? -----PasswordAuthentication 修改為yes

sudo service ssh --full-restart windows

sudo service ssh --full-restart