Linux账号空闲登出、sudo命令使用

一、Linux账号空闲登出(Idel logout)

1. vi /etc/profile 添加：
   
2. 
   
3. export TMOUT=900

二、sudo命令使用

编辑/etc/sudoers文件，按照示例root的格式，添加相应账号

1. [root@TaylonMeng ~]# visudo 或 vi /etc/sudoers
   
2. 
   
3. ## Allow root to run any commands anywhere
   
4. root ALL=(ALL) ALL
   
5. oracle ALL=(ALL) ALL

-u：后接欲切换的用户，若不加，则为root

1. [oracle@TaylonMeng ~]$ more /etc/shadow
   
2. /etc/shadow: Permission denied
   
3. [oracle@TaylonMeng ~]$ sudo -u root more /etc/shadow
   
4. 
   
5. We trust you have received the usual lecture from the local System
   
6. Administrator. It usually boils down to these three things:
   
7. 
   
8.     #1) Respect the privacy of others.
   
9.     #2) Think before you type.
   
10.     #3) With great power comes great responsibility.
    
11. 
    
12. [sudo] password for oracle:
    
13. root:$6$fwjcKvgG$pX73atu/RvAiXaYv1QWh4Y6QSFaMROAvbQXKkeLHjvVL6lnY7FPYuEAC3ASHCuH
    
14. nFReg4lgrzOLXwRWxlSWNV0:16936:0:99999:7:::
    
15. bin:*:15937:0:99999:7:::
    
16. daemon:*:15937:0:99999:7:::
    
17. adm:*:15937:0:99999:7:::
    
18. lp:*:15937:0:99999:7:::
    
19. sync:*:15937:0:99999:7:::
    
20. 
    
21. [oracle@TaylonMeng ~]$ sudo more /etc/shadow
    
22. root:$6$fwjcKvgG$pX73atu/RvAiXaYv1QWh4Y6QSFaMROAvbQXKkeLHjvVL6lnY7FPYuEAC3ASHCuH
    
23. nFReg4lgrzOLXwRWxlSWNV0:16936:0:99999:7:::
    
24. bin:*:15937:0:99999:7:::
    
25. daemon:*:15937:0:99999:7:::
    
26. adm:*:15937:0:99999:7:::
    
27. lp:*:15937:0:99999:7:::
    
28. sync:*:15937:0:99999:7:::

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转载于:http://blog.itpub.net/30776559/viewspace-2123086/