I've another concern about WNs' out bound connectivity. As far as I
understand, NAT will translate the private addresses of the WN(s) to the
IP address of its own public address. Is it possible for NAT to do that
for more than one WN at the same time? What happens if two WNs try to
access the public world at the same time?
Santanu
On Fri, 2005-03-18 at 11:26, Simon George wrote:
> Hi Henry,
>
> as you suspected, we have all the LCG front-end nodes on the public
> network, and the worker nodes on the private network connect to them via
> the router/NAT.
>
> Cheers,
> Simon
>
> On Thu, 17 Mar 2005, Henry Nebrensky wrote:
>
> > Not being the person leading the charge on this at Brunel, I have a
> > question Paul and Owen probably already know the answer to:
> >
> > On Thu, 17 Mar 2005, Simon George wrote:
> >
> > > I can provide further details on the RHUL setup soon.
> > > The basic setup is a master node that acts as a NAT router, connected to
> > > both public and private networks. It provides DHCP and a disk image to
> > > sync against for the WNs. It also runs pbs and maui. The CE queues are
> > > just fronts for the master node. We made our nfs file servers multi-homed
> > > too.
> >
> > How do you do DNS and certificate names on the CE? Don't the the WNs
> > (private LAN) need to see the CE with the same name as its certificate
> > (as does e.g. the RB on the WAN?) Or does that traffic go through NAT
> > and in through the public interface (albeit diddled inside the
> > processor rather than physically down a cable, IYSWIM)?
> >
> > Thanks
> >
> > Henry
> >
> > --
> > Dr. Henry Nebrensky [log in to unmask]
> > http://people.brunel.ac.uk/~eesrjjn
> > "The opossum is a very sophisticated animal.
> > It doesn't even get up until 5 or 6 p.m."
> >
|