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软件源sudo vi /etc/apt/sources.listsudo apt updatesudo apt upgradedeb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse#deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiversedeb http://mirror

机器卡死/异常修复

1、root密码修改默认用户下： sudo passwd root2、ssh远程登录sudo apt-get install openssh-serversudo vi /etc/ssh/sshd_config注释 PermitRootLogin prohibit-password添加 PermitRootLogin yessudo service ssh rest