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Add a User
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| [1] | Add a new user. I used user name as 'cent' on following examples, but Set any names you like to use. |
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[root@ns ~]# useradd cent [root@ns ~]# passwd cent Changing password for user cent. New UNIX password: # // input password you want to set Retype new UNIX password: # verify passwd: all authentication tokens updated successfully. [root@ns ~]# |
| [2] | Try to switch by user that was added in section [1]. |
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ns login: cent # input user name password: # input password [cent@ns ~]$ su - # switch to root Password: # input password for root [root@ns ~]# # done to switching to root |
| [3] | Make 'cent' user that was added in section [1] be only a user who can switch to root. |
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[root@ns ~]# vi /etc/group # line 11: add a user wheel:x:10:root ,cent [root@ns ~]# 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. #↓ remove '#' that was on the head of lin 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 |
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Forwarding email for root
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| [4] | Set config to forward mails for root to a user who is a system administrator you set as. |
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[root@ns ~]# vi /etc/aliases # Person who should get root's mail # bottom: remove '#' and change your user name root: cent [root@ns ~]# # set new aliases /etc/aliases: 77 aliases, longest 10 bytes, 776 bytes total |