Well, when Ubuntu was first released 18 years ago, it was the first big distribution without any open ports in the default installation and no root password. Of course there were hardening guides for Debian, which you could use to shut down the fingerd daemon and the ftp server and get rid of the global administrator account. Linux distributions had so many remotely exploitable bugs, that whole books were written about them. (Windows was still worse)
Other distros slowly started to adapt the "secure by default" policy and came up with different approaches.
OpenSUSE for example still uses the root password for sudo. The patch to /etc/sudoers is massive.
I wouldn't expect sudo to behave the same across distros, there is a lot of history to it.
Other distros slowly started to adapt the "secure by default" policy and came up with different approaches. OpenSUSE for example still uses the root password for sudo. The patch to /etc/sudoers is massive.
I wouldn't expect sudo to behave the same across distros, there is a lot of history to it.