Linux Tutorial
Creating new user in Centos/Fedora/RHEL,
# useradd test-user
Setting password for new user created,
# passwd test-user
Once entered above command, prompt user password and confirmation like below,
Changing password for user test-user. New password: BAD PASSWORD: The password is shorter than 8 characters Retype new password: passwd: all authentication tokens updated successfully.
Setting sudo permission without password for new user ‘test-user’,
# echo "test-user ALL=(root) NOPASSWD:ALL" | tee -a /etc/sudoers.d/test-user
creates entry in ’/etc/sudoers.d/test-user’ file
test-user ALL=(root) NOPASSWD:ALL
update file permission mode,
# chmod 0440 /etc/sudoers.d/test-user
switch to test-user,
# su - test-user
Setting password less sudo configuration to test-user,
[test-user@localhost]$ echo -e "\n$USER ALL=(ALL) NOPASSWD: ALL\n" | sudo tee -a /etc/sudoers
SUSER is replaced with current user,
$ test-user ALL=(ALL) NOPASSWD: ALL
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