Using sudo in RedHat

This post describes how to allow users in the wheel group to use the sudo command without being prompted for the root password

1. Edit /etc/sudoers
   Uncomment the line

   %WHEEL ALL=(ALL) NOPASSWD: ALL

2. Add a user to the wheel group

   # gpasswd -a username wheel

This does also work on Fedora and other Redhat based distributions.