> On Fri, 18 Jun 1999, Tristram Ellicott wrote:
>
> > Whenever anynoe browses the local network a link is forced by diald :(
> >
> > I can minimise this by getting samba to do the domain login thing and then
> > there is only one dialup (each time someone starts their computer)
> >
> > But I don'tknow how to STOP it !
>
> Well, you won't stop it by changing diald filter rules, at
> least, not easily if ever. Odds on it is because of DNS
> queries, either direct or because samba is bouncing WINS
> look ups to DNS (samba does have a config option to turn
> DNS fowarding off).
>
> Everyone, if you have demand dialled links - of any
> description - you really should be running a local
> name server and you should ensure that *only* that
> name server is allowed to forward requests off site.
>
Mike is right about running a local nameserver. But there are
also lots of other reasons that some random win95/win98/nt machine
might decide that it needs to talk to the outside world all night
long. Just last week I had to go around and rip some sort of real
networks icon off of the taskbars of a bunch of pc's in our office.
They were connecting to servers at real.com every 3 hours or so.
The only defence is to take the time to understand tcpdump or some
other tool. The time you invest in learning the tool will be refunded
many times over.
Everyone be carefull out there.
-- cary
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