Re: Back to Reverse DNS

[John Ross <jross-ml@xxxxxxxxxxxxxxx>]

DNS is not my stong area, but not matter what you do on the AS/400 it is 
not going to fix your reverse DNS problem. And here is why I think that. 
You do not have control over the zone file for that IP address.

For my reverse DNS I had to go to Sprint (my ISP) and tell them when 
they get a request for a reverse lookup for 63.167.147.xxx send it to my 
DNS server and I will handle it. and On my DNS I had to setup the zone 
file for the IP address.

I think in iSeries navigator all that is doing is saying when I put an 
entry in my zone file(s) also add one for the reverse lookup (it assumes 
you have control over the zone file).

If the IP address that is being reversed had control over what it 
reported, it would be worthless. what spammer would not set it so it 
said it was not spam.

John Ross

Jeff Crosby wrote:

> I can't get past the idea it's just got to be something simple and stupid.
> Centennial told me when they receive email for a phone, they verify where it
> came from which is, I think, where the reverse DNS comes into play.  In
> iSeries navigator, when I go into DNS, it wants me to upgrade to a newer
> version that requires PASE.  I have resisted this because I don't know what
> I am doing in that arena.  The box is checked for reverse DNS mappings.