sudo apt update
sudo apt upgrade apache2 # 升级Apache2及其相关组件
# 或使用全系统升级(包含所有软件包)
# sudo apt full-upgrade
sudo systemctl restart apache2
apache2 -v # 查看当前版本
sudo add-apt-repository ppa:ondrej/apache2
sudo apt update
sudo apt upgrade apache2
sudo systemctl restart apache2
apache2 -v
/etc/apache2目录。sudo apt --fix-broken install)。以上步骤参考自。