RE: Sendmail/DNS Wackiness.

[Adam <adam@xxxxxxxxxxxxxxxx>]

 From          : klug>klug-request
 To            : adam
 Subject       : RE: Sendmail/DNS Wackiness.
 Date          : 09/13/99 09:49


>Adam -
>Good call! You were right regarding the nslookup stuff.

It took me alot longer to figure out the first time it happened to me.

>I should have caught that *duh*. I guess I was thrown
>off course because I did an nslookup from the server
>resolving IP > name, and it worked. So I just breezed
>over it.

Most of the sendmail problems I have had have turned up to be DNS related.

>So, if reverse lookups are functioning locally, but
>not remotely, what's going on? Is it simply not
>propagating?

Are you running your own DNS or using the ISP's?  Sometimes you have to slap
an ISP a few times to get DNS working in both directions.  If you are running
DNS yourself I'll assume you mean bind.  In that case you have two seperate
files (in /var/named?) one named.host does name to IP and named.rev does
IP to name,  you need to have corrsponding entries in each file. (They are
two seperate files as there are times you DON'T want them to match exactly)