关闭Ubuntu自动检查更新

systemctl stop apt-daily.service
systemctl stop apt-daily.timer
systemctl stop apt-daily-upgrade.service
systemctl stop apt-daily-upgrade.timer
systemctl disable apt-daily.service
systemctl disable apt-daily.timer
systemctl disable apt-daily-upgrade.service
systemctl disable apt-daily-upgrade.timer

参考链接：https://www.cnblogs.com/sparkdev/p/11376560.html