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2022.07.05
2022-07-07 17:01:00 【ifuudoudou】
课时16补充

由于我的ubuntu一开始没有安装ssh服务器,所以需要先安装。
安装可以用
sudo apt-get install openssh-server
这个命令。

安装好之后,再利用 serve ssh status这个命令查看是否连接。
出现了active(running)证明连接成功。

在演示两台主机之间的连接时,需要用到两个虚拟机,这里就需要用到克隆。
首先在ubuntu上点击“管理”。
“管理”选项下有“自定义”,然后选择“库”。
选择之后会出现下面这个界面。
接着右键点击这个系统,选择“快照”-“拍摄快照”,直接保存快照就可以了。
最后再次右键,选择“管理”-“克隆”。
课时17




查看进程运行情况,相当于windows的任务管理器。

课时18




答案:
1.权限有三种:r(读)w(写)x(执行)。
用户的角色也只有三种,ugo。
2.ping。
3.ps-ajx,ps-aux都可以。
4.kill
5.ping

6.指定大小,ping -s,结束ping命令,ping -c
7.pop
8. 7代表最高权限,5代表有读和执行的权限,chmod u=rxw,g=rx,o=rx
9.df

课时20

课时21linux文件查找


课时22


课时23

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