Ubuntu disables root login for "security reasons". However it seems to me that it doesn't help with security at all.
If an intruder manages to get your login password for Ubuntu, then he also has the super-user password, since it's the same as the login password.
However if the root password is required, then just having the login won't help the intruder much – that's right isn't it?
So basically, what I want to know is: Why did Ubuntu choose to disable the root password? What are the security reasons?
Please don't answer according to what you "think" was the reason – I'm looking for an answer from official sources, or linked to them.
Best Answer
Mitch posted a good link in comment: Why is it bad to login as root? and the Debian site has the main benefits listed in their wiki:
Regarding Ubuntu The benefits and disadvantages are listed on our wiki:
And we always have had it (from the very 1st release).
Oldest reference I found speaks about 4.10 that has "sudo"