reverse dns problem (again sorry!)

Kevin Darcy kcd at daimlerchrysler.com
Mon Aug 21 21:51:25 UTC 2000


Paul Hill wrote:

> Hi
>
> This is driving me mad.
>
> I have a linux server with a dns server that works fine.  The nslookup
> works fine for all the reversed IP numbers.  However the client I am
> using (windows 98) uses a application that I have written that uses a
> function called gethostbyname.  If I pass this function the actual name
> of the server then it is fine (i.e. mcpc.priv.ate)  However If I pass it
> the IP address 192.168.1.1 it hangs for good while before eventually
> connecting and proceeding.
>
> I've run "named" in debug mode and I can see the connection request
> 192.168.1.1 coming in but not matching.  This is rediculout as I can
> match it on the server with the nsloopup function.  Is this a reverse
> problem.  Oh by the way the network is totally isolated (just client and
> server) so there is no deferment.

gethostbyname() maps names to IP addresses. To map an IP address to a name,
use gethostbyaddr().


- Kevin




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