Nslookup Times Out on A Lookup To Well-Known Hosts

Steve Ingraham singraham at okcca.net
Fri Sep 29 17:15:32 UTC 2006

Will wrote:
>I have several well-known hosts that are failing A record lookups on
DNS >and I need help debugging this.

>We have the ISC Bind 9.3.0 set up on a box with a sendmail mail server,
>just to speed up the MX lookups on that box.   I go to the nslookup
command >line, and type something like the following:

>    type=mx
>    cox.net

>and what I get back is a timeout that lasts two seconds and then no

I have a typo in my earlier post.  The ">type=mx" line in your lookup
should be ">set type=mx".  So the commands should look like:

Nslookup - <IP address of external DNS>
>set type=mx

Steve Ingraham

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