Ubuntu Superusers

I came to Ubuntu (Dapper Drake) from Solaris. I thought I'd be able to log in as the root user or su from the command line to my heart's content. It's not that simple. By default you can't log in or su to the root user as I expected. To perform admin tasks as a non root user you need to use the sudo command (this was in fact running for me withjout my knowledge as I ran the various admin tasks to set things up after install. For info on the sudo command, look at the Dapper documentation wiki.