RE: Homeseer and Dyndns

[Paul Miller <pmiller@xxxxxxx>]

that was next question :) if it was the DNS cache have you tried
flushing it. I can't seem to locate the Timeout value in the registry,
although I believe its normally set to 5 mins by default.

Good luck

please advise when you sort it out - I would be interested in the
solution.

Paul

-----Original Message-----
From: Paul Gordon [mailto:paul_gordon@xxxxxxx]
Sent: 20 March 2001 14:55
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Homeseer and Dyndns


AHA!  -  there's a new switch I hadn't yet discovered! - not seen the
/displaydns switch before! I see there is also a /flushdns to empty the
resolvers cache. - I'll try that later tonight when the server goes
online..

I was sure it was the resolver cache anyway, as I intimated in my
earlier
post.

Thanks for pointing that one out!

Paul G.

>
>Paul,
>
>your w2k problem is the issue one of the arp cache still having the
info
>(arp -a) or is it still in the dns cache (ipconfig /displaydns)?
>
>
>
>-----Original Message-----
>From: Paul Gordon [mailto:paul_gordon@xxxxxxx]
>Sent: 20 March 2001 09:47
>To: ukha_d@xxxxxxx
>Subject: Re: [ukha_d] Homeseer and Dyndns
>
>
> >
> >But to see this web page I must lookup my IP using the dyndns web
page
>and
> >then type in this IP address into IE.  Is there any way I can just
put
>in
>
>
>That kinda defeats the object!!
>
>
> >webpage address that is the same all the time. (what is the name
of
the
> >homeseer web page, I cannot find this anywhere as it seems to be
too
> >dynamic)
>
>The whole point of dynamic DNS is to be able to do exactly that. The
>name
>would/should be whatever name you >choose< to register beneath
the
>Dynamic
>DNS service providers domain name, for example,
>"www.ianshouse.dyndns.org"
>then as long as you have a DDNS client that correctly updates your
>dynamic
>registration(s) with that service (and does so promptly!), then
>resolvers
>should be able to use that name to find your webserver.
>
>The fact that when you go to the DDNS webpage and look up your IP
>address,
>and find that is is correct and current, (as proved by the fact that
>browsing to it gets to your HS webpage), proves that your client update
>is
>occurring quite correctly...
>
>I would then look at the configuration of the resolvers... Do you have
a
>
>cacheing DNS server between your resolver and the DynDNS server?
>
>I have a very similar problem at the moment with some W2K workstations,
>- I
>also use the DynDNS service, and a Dynamic DNS client to register my
>Home
>webserver (NT4 server & IIS4), which redirects incoming HTTP
requests
to
>my
>internal Homeseer webserver. I find that the dynamic update portion
>works
>perfectly, IE when my server's IP address changes, the client correctly
>updates the dynamic registration, and does so very quickly. Checking
the
>
>DynDNS webpage therefore shows the correct IP address, just as in your
>case.
>However, I then find that some PC's on my internal LAN can ping the
FQDN
>
>correctly, while others cannot, due to resolving an incorrect (earlier)
>IP
>address. My internal LAN also has a cacheing DNS server AND A proxy
>server
>(also on the same NT4 & IIS4 box), and my internal clients use ONLY
>these
>internal services. My initial belief was that my internal DNS server
was
>
>caching the IP address for the FQDN from an earlier lookup, and issuing
>that
>to subsequent requests, - EVEN after the server had disconnected &
>reconnected and obtained (and registered)a different IP. However, I've
>looked in MY DNS servers' cache, and I cannot see it, so that doesn't
> >seem<
>to be the case...
>
>I haven't got to the bottom of this yet, but I think I may have
>determined
>that W2K clients and Win9X clients behave differently in how they
>perform
>DNS queries,... I am still investigating, so I'll let you know if/when
I
>
>figure it out...
>
>Anyone a Whizz on DNS care to chime in?....
>
>
>Paul G.
>
> >
> >I noticed an earlier mail where someone had put up a wiring
diagram
and
>
> >this
> >was done using dyndns.  Can I do this too.
> >
> >IanW
>
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