[Samba] Samba4 upgrade compatability

[Andrew Bartlett]

On Tue, 2012-10-23 at 11:17 -0400, felix at epepm.cupet.cu wrote:
> > I have an existing install of Samba4 ( I think beta6 vintage ), which uses
> > ntvfs and bind9.  It's only providing AD and Group Policy.  I have a
> > seperate
> > file server running 3.6.x.
> >
> > I want to add a server to the domain running the most recent RC.  I know
> > they are using internal by default and s3fs for the file shares on sysvol.
> >  Can
> > s3fs coexist with ntvfs?  Can the internal DNS coexist with Bind?
> >
> > Is there a specific reason to use the internal now?  I'm happy with bind
> > so if it's literally just a preference issue I'll probably stick with what
> > I have.
> >
> > If there are good reasons to move to s3fs and internal? is there an easy
> > way to migrate the older domains via the upgrade?
> >
> > Thanks in advance to everyone.
> >
> > Caleb O'Connell
> >
> 
> Until a couple of weeks ago the internal dns server had an issue with the
> forwarder (kept connections open until it reached more than 1000, then it
> didn't reply to requests out of the local domain) and it also didn't
> update the reverse zone. I don't know whether it it's been fixed or not.

I don't think either server has special handling for reverse zones, but
we now have a 2sec DNS timeout to reduce the number of open file
descriptors.  The issue is the default 1024 FD ulimit (and we use a lot
- perhaps too many - internally for other things).

Andrew Bartlett

-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org