[mrtg] MRTG and DynDNS
scott.neader at CenturyTel.com
Thu Sep 13 23:45:25 CEST 2007
Can someone clarify... Does MRTG work with DNS names, instead of IP
addresses? Is what he is trying even supported?
> -----Original Message-----
> From: mrtg-bounces at lists.oetiker.ch
> [mailto:mrtg-bounces at lists.oetiker.ch] On Behalf Of Guenther Boelter
> Sent: Tuesday, September 04, 2007 4:14 AM
> To: mrtg at lists.oetiker.ch
> Subject: Re: [mrtg] MRTG and DynDNS
> Thanks Alex,
> looks like it's really a problem with MRTG.
> If nobody has a better idea, I will try to run MRTG via cron
> instead as a daemon.
> Let's see ....
> Alex van den Bogaerdt wrote:
> > On Tue, Sep 04, 2007 at 02:38:22PM +0800, Guenther Boelter wrote:
> >> I have an agent/client with a dynamic IP address using
> dyndns.org. At
> >> the moment the IP address for the client has changed MRTG
> can't get
> >> datas anymore from that client because MRTG is still using
> the old ip.
> > Is MRTG, or is your entire system?
> > Perhaps you've just found out about DNS caching...
> > ve
> > I'm not saying that it certainly is not mrtg, I don't know, but I
> > could think about a couple of other places where things
> could go wrong.
> > I hope someone else can give a more definitive answer but
> in the mean
> > time you could try to narrow down the problem area. Some
> tools will
> > use the DNS resolver (and return cached data) some will
> bypass it and
> > return the new IP address. Maybe a small perl program
> would do, one
> > pinging the host one time and thus showing the IP address.
> > HTH
> > Alex
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