Re: Setting up sfssd on Linux: Success!, what about dhcp hosts?

> Date: Tue, 25 Mar 2003 23:31:46 +0100 (CET)
> From: Wout Mertens <wmertens@xxxxxxxxx>
> 
> I just tested this by setting SFS_HOSTNAME to my ip address, and it works.
> Is there a reason for this? I would think that anything that resolves to
> the correct host would be okay, as long as the public key matches?
> 
> If there is a reason, could it please be documented, and if there is no
> reason, could it please be fixed? :)

There are two reasons.  First is that you might want to host multiple
virtual SFS servers on a machine.  In that case, you would have
multiple CNAME (or A) records pointing to the same machine.  sfssd
can be configured to pass different connections to different instances
of sfsrwsd.

The second reason is that we want each file system to have only one
name.  Otherwise, on the client, the same file system might look like
two different mount points.  This has some potentially bad effects,
like wasting cache space, or worse yet losing people's data if they
ever try to copy a file onto itself.

Note that "sfskey login" definitely should work with CNAMES.  Thus,
really the right way of doing things is to set things up so users
don't ever worry about self-certifying pathnames--they just run
"sfskey login host", and it works whichever alias they use for host.

David