Verizon email problems

Chris Brenton cbrenton at chrisbrenton.org
Thu Nov 13 06:16:09 EST 2003


On Wed, 2003-11-12 at 21:29, bscott at ntisys.com wrote:
>
>   FYI, while WHOIS can be a useful tool for working out reverse DNS lookup
> problems, it's often more productive to follow the DNS delegation chain,
> because that tells you who has the actual ability to change the results.  
> If WHOIS and DNS disagree, DNS wins.  :-)

Agreed, but usually whois will show you this:

[cbrenton at valhalla cbrenton]$ whois -h whois.arin.net 65.173.218.106
[Querying whois.arin.net]
[whois.arin.net]
Sprint SPRINTLINK-2-BLKS (NET-65-160-0-0-1)
                                  65.160.0.0 - 65.174.255.255
ESCAL INSTITUTE OF ADVANCED FON-1101912576101565 (NET-65-173-218-0-1)
                                  65.173.218.0 - 65.173.218.255
 
If they don't match something is broken.
C







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