Secondary Name Server Doesn't Answer

Kevin Darcy kcd at daimlerchrysler.com
Wed Feb 13 01:44:34 UTC 2002


You are aware that sucky nslookup generates unsolicited *reverse* queries
in addition to whatever forward queries you ask it, right? This is one of
the many reasons why "dig" is a preferred troubleshooting tool. I suspect
that ns2 was choking on the reverse query generated by nslookup, since
obviously ns2 is able to resolve prudentialhunter.com without any problem.


- Kevin

P.S. I've never heard of "nslookup -sil" before; what's that supposed to
do? Hopefully it's an option that means "don't suck quite as much as usual"
:-)

Ken Smith wrote:

> >From the following nslookups it appears that my primary name server
> "ns.pathstar.com" can't find my secondary name server
> "ns2.pathstar.com"  My secondary name server does nslookups correctly on
> both servers. Additionaly if I stop the primary server the secondary
> server doesn't answer requests from anyone. It's as if the secondary
> name server doesn't know its own name even though I can ping to it from
> the outside and other nameservers know the correct directions to get to
> it.
> Does any one have any Ideas what I have missed.
> Thanks for any help in Advanced,
> Ken
>
> [root at ns /etc]# nslookup -sil ns2.pathstar.com
> Server:         63.241.154.196
> Address:        63.241.154.196#53
>
> Name:   ns2.pathstar.com
> Address: 63.241.154.199
>
> ####################################################
>
> [root at ns /etc]# nslookup -sil ns2.pathstar.com ns.fastq.com
> Server:         ns.fastq.com
> Address:        204.62.193.3#53
>
> Non-authoritative answer:
> Name:   ns2.pathstar.com
> Address: 63.241.154.199
>
> NSLOOKUPS FROM NS.PATHSTAR.COM (Primary)
> #####################################################
> [root at ns /etc]# nslookup -sil prudentialhunter.com
> Server:         63.241.154.196
> Address:        63.241.154.196#53
>
> Non-authoritative answer:
> Name:   prudentialhunter.com
> Address: 12.37.8.10
>
> ######################################################
> [root at ns /etc]# nslookup -sil prudentialhunter.com ns.pathstar.com
> Server:         ns.pathstar.com
> Address:        63.241.154.196#53
>
> Non-authoritative answer:
> Name:   prudentialhunter.com
> Address: 12.37.8.10
>
> ######################################################
> [root at ns /etc]# nslookup -sil prudentialhunter.com ns.fastq.com
> Server:         ns.fastq.com
> Address:        204.62.193.3#53
>
> Name:   prudentialhunter.com
> Address: 12.37.8.10
>
> ######################################################
> [root at ns /etc]# nslookup -sil prudentialhunter.com ns2.pathstar.com
> ;; connection timed out; no servers could be reached
>
> ******************************************************
> ******************************************************
>
> NSLOOKUPS FROM NS2.PATHSTAR.COM (secondary)
> ######################################################
> [root at ns2 /etc]# nslookup -sil prudentialhunter.com
> Server:         63.241.154.199
> Address:        63.241.154.199#53
>
> Non-authoritative answer:
> Name:   prudentialhunter.com
> Address: 12.37.8.10
>
> ######################################################
> [root at ns2 /etc]# nslookup -sil prudentialhunter.com ns.pathstar.com
> Server:         ns.pathstar.com
> Address:        63.241.154.196#53
>
> Non-authoritative answer:
> Name:   prudentialhunter.com
> Address: 12.37.8.10
>
> #######################################################
> [root at ns2 /etc]# nslookup -sil prudentialhunter.com ns.fastq.com
> Server:         ns.fastq.com
> Address:        204.62.193.3#53
>
> Name:   prudentialhunter.com
> Address: 12.37.8.10
>
> #######################################################
> [root at ns2 /etc]# nslookup -sil prudentialhunter.com ns2.pathstar.com
> Server:         ns2.pathstar.com
> Address:        63.241.154.199#53
>
> Non-authoritative answer:
> Name:   prudentialhunter.com
> Address: 12.37.8.10



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