Add a sudo user On CentOS

To create a user and give them a sudo access you will need to have a sudo access. Follow the steps below  to create new user and provide them sudo access

1.  Login to the server  with the choice of your tools 

ssh root@yourserverIpAddress

2. Add a new User to the system and change your password

adduser test  -  Change test with the name of your choice

passwd test  - change the password for the user you created above

3. Adding the new User to the wheel Group

usermod -aG wheel test  - all member of the wheel group has a full sudo access and we are adding the new user to the wheel group

4. Test your Access 

        use the su command to switch form to root user to the newly created user

        su - test - you are now logged in as the new user

       now you can run /execute a sudo command 

      eg.  sudo ls -la /root - enter the password for the new use and you should be good to go

Adding new group

1. add groups to the system

groupadd groupname

2. add user to group 

    usermod -a -G groupname test