Comment 6 for bug 9471

(In reply to comment #5)
> According to the sudoers manual:
>
> "Beware that turning on fqdn requires sudo to make DNS lookups which may make
> sudo unusable if DNS stops working (for example if the machine is not plugged
> into the network). Also note that you must use the host's official name as DNS
> knows it. That is, you may not use a host alias (CNAME entry) due to performance
> issues and the fact that there is no way to get all aliases from DNS. If your
> machine's hostname (as returned by the hostname command) is already fully
> qualified you shouldn't need to set fqdn. This flag is off by default."
>
We can probably safely turn this off for new installs then and document that it
needs to be on for host based aliases
in README and in the sudoers file.