[9fans] cpu server as FS

[9fans] cpu server as FS

[matt]

Hullo 9fans,

urghh 2.20am

I've spent the evening setting up my first auth server.

it works fine i think but of course I made it look for a file server
it can't find (itself!).

The wiki page says :
"A set of patches to kfs exists to make it act as a network file server,
so that you could use one machine to support the network rather than
needing two."

Did Fermat write that line? How can I find these mysterious patches?

Sorry if thay are somewhere obvious but like I say it's late & I'm
tired and I'm hoping help will be at hand when I wake up to carry on.


-- 
 matt                          mailto:matt@proweb.co.uk

Re: [9fans] cpu server as FS

[rob pike]

	Man pages do not show options "listen" and "noauth" for kfscmd - where it
	came from ?

It looks to me that /sys/man/8/kfscmd does contain an entry for "listen",
but "noauth" and "nosync" are undocumented (unintentionally).

Noauth disables authentication checking.

Nosync disables the timer than automatically synchronizes the buffers
to the disk, to preserve power on battery-powered laptops.

-rob

Re: [9fans] cpu server as FS

[Alexander Povolotsky]

Man pages do not show options "listen" and "noauth" for kfscmd - where it
came from ?
"Richard Miller" <miller@hamnavoe.demon.co.uk> wrote in message
news:E14vbls-000C0G-0B@finch-post-11.mail.demon.net...
> > I think.  It only works on cpu servers
> > (/dev/key has to be readable).
>
> True, for file service with authentication you do need to run it on a
> cpu server.
>
> But kfs on a terminal will also serve its filesystem to the network
> if you do 'disk/kfscmd listen'.  If you add 'disk/kfscmd noneattach',
> then other machines will be able to attach as user 'none'.
> If you add 'disk/kfscmd noauth', other machines will be able to attach
> as any user, but kfs will accept the remote user identity without
> attempting to authenticate.
>
> Clearly this is not at all secure; but it may be useful on a local
> network of trusted machines, with no outside connection -- for example,
> to "synchronise" your laptop with the fs on a standalone Plan 9 machine.
>
> -- Richard
>

Re: [9fans] cpu server as FS

[Richard Miller]

> I think.  It only works on cpu servers
> (/dev/key has to be readable).

True, for file service with authentication you do need to run it on a
cpu server.

But kfs on a terminal will also serve its filesystem to the network
if you do 'disk/kfscmd listen'.  If you add 'disk/kfscmd noneattach',
then other machines will be able to attach as user 'none'.
If you add 'disk/kfscmd noauth', other machines will be able to attach
as any user, but kfs will accept the remote user identity without
attempting to authenticate.

Clearly this is not at all secure; but it may be useful on a local
network of trusted machines, with no outside connection -- for example,
to "synchronise" your laptop with the fs on a standalone Plan 9 machine.

-- Richard

Re: [9fans] cpu server as FS

[Russ Cox]

> "A set of patches to kfs exists to make it act as a network file server,
> so that you could use one machine to support the network rather than
> needing two."

It's in the main distribution.  Man kfscmd(8).

You want to do
	disk/kfscmd listen

I think.  It only works on cpu servers
(/dev/key has to be readable).

Russ