(1) I dislike default world-read access to any files so I set umask
appropriately in /etc/bashrc.
(2) Fiddle around with ppp config or anything else that rewrites /etc/hosts.
(3) Next time you login with Gnome, it complains that it cannot look up your
host name, etc.
This is only to be expected because the changed umask value prevents
world-read access.
Lesson: Don't fiddle around with the umask value in /etc/bashrc,
unless you are prepared to chmod system files to workable
values. Best to modify umask per user.
Question: If I'm logged on as an non-root user and then run a
system config GUI that asks for the root password, do I
get the equivalent of "su -" or just "su"?
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