bind8 only tcp queries?

[Kevin Darcy]

Clients will typically retry their queries; depending on the client, you may
even be able to tune this. How long does it take to get an address?


- Kevin

Stephan Grallert wrote:

> I thought of that already, but what to do with the client requests?
>
> greetz!
> "Kevin Darcy" <kcd at daimlerchrysler.com> schrieb im Newsbeitrag
> news:39CFB17F.457D15C0 at daimlerchrysler.com...
> >
> > Why don't you just delay bringing up your nameserver until you have a
> valid
> > source IP?
> >
> >
> > - Kevin
> >
> > Stephan Grallert wrote:
> >
> > > The first packets sent out to the forwarders contain a non-valid source
> IP,
> > > so any answers won't make the way back to my ppp-dev.
> > > I either need to tell bind to only make tcp-queries, in which the valid
> IP
> > > can be inserted by the kernel-patch or to have the kernel modified by
> any
> > > guru!
> > >
> > > Static IP ist not possible and forwarding is necessary.
> > > greetz
> > > "Kevin Darcy" <kcd at daimlerchrysler.com> schrieb im Newsbeitrag
> > > news:39CBD032.D7E46A4F at daimlerchrysler.com...
> > > >
> > > > TCP queries are wasteful, you shouldn't be using them as a matter of
> > > course.
> > > >
> > > > I'm not clear why you feel the need to rewrite your source address.
> Does
> > > your
> > > > forwarder restrict queries, or restrict recursion, by IP address? If
> you
> > > have
> > > > full connectivity to the Internet, then perhaps instead of kludging
> your
> > > > network stack, or BIND, you should consider not forwarding at all. Or
> get
> > > a
> > > > static IP address.
> > > >
> > > >
> > > > - Kevin
> > > >
> > > > Stephan Grallert wrote:
> > > >
> > > > > Hi all!
> > > > >
> > > > > My problem is probably not new, but I scanned deja and this mailing
> list
> > > > > archive, but I found no hint:
> > > > > I built a Linux box do act as dial up router with pppd, named
> (caching
> > > and
> > > > > forwarding only). In order to solve the problem with the dynamic
> source
> > > IP
> > > > > adresses I activated the RST-Provoking patch which rewrites TCP
> header's
> > > > > source address after to PtP connection has come up.
> > > > > The problem is, it ONLY rewrites TCP packages, no UDP.
> > > > > But bind8 first send outs a udp-query to its forwarders, but this is
> not
> > > > > rewritten.
> > > > > Is there any chance to tell bind to make tcp-queries only?
> > > > >
> > > > > thanx&greetz!
>