ssh -X and sudo: permission mayhem

[Derek Broughton]

Dexter Filmore wrote:

> Two machines, alice and bob
> 
> From alice ssh'ed into bob with
> 
> $ ssh -X user at bob
> then *on* bob ran
> 
> $ sudo bash
> to get a root prompt.
...
> Why?

OK, I'm really weak on the whole concept of ssh and X, but it looks like
that "sudo bash" command.  Don't do that :-(

"sudo -i" gives you a root _login_ shell.  "sudo bash" (or "sudo -s") gives
you root permissions but all of your environment is set for "bob".  This
invariably causes problems - and mostly with X apps.
-- 
derek