Initial Settings : Add an User2014/07/08 |
| [1] | Add an User "cent" as an example below. |
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[root@dlp ~]# useradd cent [root@dlp ~]# passwd cent Changing password for user cent. New UNIX password: # set password Retype new UNIX password: # confirm passwd: all authentication tokens updated successfully. [root@dlp ~]# # logout |
| [2] | Try to switch to a user that was added above. |
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dlp login: cent # input user name password: # password [cent@dlp ~]$ su - # switch to root Password: # root password [root@dlp ~]# # just switched to root |
| [3] | Make a user be only a user who can switch to root as an administration user. (it's 'cent' in this example) |
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[root@dlp ~]# usermod -aG wheel cent
[root@dlp ~]#
vi /etc/pam.d/su #%PAM-1.0 auth sufficient pam_rootok.so # Uncomment the following line to implicitly trust users in the "wheel" group. #auth sufficient pam_wheel.so trust use_uid # Uncomment the following line to require a user to be in the "wheel" group. # uncomment the following line auth required pam_wheel.so use_uid auth substack system-auth auth include postlogin account sufficient pam_succeed_if.so uid = 0 use_uid quiet account include system-auth password include system-auth session include system-auth session include postlogin session optional pam_xauth.so |
| [4] | To forward to emails for root user to another user, set like follows. (it's 'cent' in this example) |
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[root@dlp ~]#
vi /etc/aliases
# Person who should get root's mail
[root@dlp ~]# # last line: uncomment and change to a user root: cent
# reload |
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