On Fri, Nov 18, 2005 at 11:38:34AM -0800, Paul Yeatman enlightened us:
> ->>In response to your message<<-
>   --received from Paul Bijnens--
> >
> > Paul Yeatman wrote:
> > >
> > >There is a firewall on both sides but I have had the client side
> > >firewall off for the purpose of this test and the server side firewall
> > >isn't blocking any outbound activity.
> > >
> > >Possibly as best evidence (as mentioned in my original post and I feel
> > >bad that in my last reply I didn't include my original post and all
> > >replies), I have made one successful backup of this client using this
> > >config but only when trying to backup less than the full partition.  In
> > >the successful case, it was a 3G directory.  Yet every time I've tried
> > >to back up the full partition (17G), I can't get past a successful
> > >estimate even when increasing the etimeout from 900s to 2600s.  I would
> > >conclude from the successful case that the firewall is not
> > >interferring.
> > 
> > I think the firewall is the cullprit.
> > The server sends a UDP packet with the request for the estimate.
> > When finished the client sends a reply UDP back.
> > But by that time the firewall does not relate the reply to the request
> > and drops or denies the packet.  And hence the client does not receive
> > an ACK and retries 3 times to send the reply and gives up.
> 
> Hmmmm.  Well, that would be easy enough to test but would this explain
> how the smaller backup of the same client/config succeeded?
> 

Yes, because it doesn't take as long to generate a backup of 3GB than it
does to backup 17.

See http://www.amanda.org/docs/faq.html#id2555136 and try the udp settings
there.

Matt

-- 
Matt Hyclak
Department of Mathematics 
Department of Social Work
Ohio University
(740) 593-1263