Re: Host name for su(do)? (was: Tramp 2.0 -> 2.1 migration woes)

["Trent W. Buck" <trentbuck@gmail.com>]

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On Mon, Jan 28, 2008 at 03:50:16PM +0100, Michael Albinus wrote:
> >> The appended patch shall fix it. Could you, please, test?
> >
> > Yes, that seems to work, but I would extend the whitelist:
> >
> > - The class A network 127.0.0.0/8
> > - The unqualified system name (e.g. Clio instead of Clio.twb.ath.cx)
> > - The comparison should be case-insensitive.
> >
> > Obviously this whitelist will never be perfect, e.g. if "mail" is a
> > CNAME alias in on the DNS server for the local host, /sudo:mail: is
> > meaningful but it would be hard to catch that.
> 
> The typical use case for "su" and "sudo" are file names like
> "/sudo::/file". Therefore, I don't believe we shall invest too much
> in the whitelist.

Fair enough.

> "127.0.0.1" as host name doesn't seem to be needed; if
> somebody uses it, s?he will be taught not to do.

Hee hee, I only learnt to use 127.0.0.1 because Emacs 22 / TRAMP 2.0
wasn't working with /multi:ssh:twb@foo:sudo:root@localhost:/ but it
was with 127.0.0.1.

> `system-name' will mostly the unqualified system name I believe, so it
> is already compliant to your request. Or am I wrong?

On my system, system-name is the FQDN.  Assuming system-name is what
the default frame-title-format uses, this has been the case for as
long as I can remember (back to Emacs 21).

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