Add a User2015/01/13 |
| [1] | Add a new user like follows. |
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[root@dlp ~]# useradd cent [root@dlp ~]# passwd cent Changing password for user cent. New UNIX password: # input password you want to set Retype new UNIX password: # confirm passwd: all authentication tokens updated successfully. [root@dlp ~]# |
| [2] | Try to switch to the user just added above. |
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dlp login: cent # input a user name password: # input the password [cent@dlp ~]$ su - # switch to the root user Password: # input the root password [root@dlp ~]# # just swithced |
| [3] | Make a user be only the user who can switch to the root user. |
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[root@dlp ~]# usermod -G wheel cent
[root@dlp ~]#
#%PAM-1.0vi /etc/pam.d/su 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 line below auth required pam_wheel.so use_uid auth include system-auth account sufficient pam_succeed_if.so uid = 0 use_uid quiet account include system-auth password include system-auth session include system-auth session optional pam_xauth.so |
| [4] | Configure the email forwading settings. For example, if you'd like to forward emails for root account to another user, set like follows. |
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[root@dlp ~]#
vi /etc/aliases
# Person who should get root's mail
[root@dlp ~]# # uncomment and change to a user you'd like to set root: cent
# apply new settings |
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