sudo

the system sometimes shows the message “xxx is not in the sudoers file. This incident will be reported” when we use sudo command. XXX is your username

We could use ‘visudo’ command to resolve this issue

visudo /etc/sudoers

you will find there is a line:

root    ALL=(ALL) ALL

Please add the a new line below it and then save and exit

XXX    ALL=(ALL) ALL

Note: one the root could edit this file, visudo will use VI to edit sudoers file, so we can press ESC and then input :wq to save sudoers and exit VI.

http://www.ibm.com/developerworks/cn/aix/library/au-sudo/?ca=drs-tp4608