nslookup works, dns fails?

nslookup works, dns fails?

Post by dj_ren.. » Wed, 26 Apr 2000 04:00:00



I have built my work machine to dual boot to RH 5
in a total NT Domain.  DHCP works as far as
getting an IP addr is concerned, and I have
entered the GW and routes, and DNS.  Here is what
is flaky:  nslookup works great, I can get IP#
for anything.  When I go to ping
www.someplace.com, it takes forever and then
comes back as "www.someplace.com unknown".  If I
ping 1.2.3.4 (IP of www.someplace.com gathered
from nslookup) then it works wonderfully.  I am
pretty stuck on this one.

dan

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nslookup works, dns fails?

Post by Mike Brun » Wed, 26 Apr 2000 04:00:00



> I have built my work machine to dual boot to RH 5
> in a total NT Domain.  DHCP works as far as
> getting an IP addr is concerned, and I have
> entered the GW and routes, and DNS.  Here is what
> is flaky:  nslookup works great, I can get IP#
> for anything.  When I go to ping
> www.someplace.com, it takes forever and then
> comes back as "www.someplace.com unknown".  If I
> ping 1.2.3.4 (IP of www.someplace.com gathered
> from nslookup) then it works wonderfully.  I am
> pretty stuck on this one.

> dan

Query:  

Quote:> I have entered the GW and routes, and DNS.

Your RH machine is not a DNS server, right?  Or
doesn't think its one?

What does your /etc/resolv.conf look like?

Mike

 
 
 

nslookup works, dns fails?

Post by djren.. » Wed, 03 May 2000 04:00:00





> > I have built my work machine to dual boot to RH 5
> > in a total NT Domain.  DHCP works as far as
> > getting an IP addr is concerned, and I have
> > entered the GW and routes, and DNS.  Here is what
> > is flaky:  nslookup works great, I can get IP#
> > for anything.  When I go to ping
> > www.someplace.com, it takes forever and then
> > comes back as "www.someplace.com unknown".  If I
> > ping 1.2.3.4 (IP of www.someplace.com gathered
> > from nslookup) then it works wonderfully.  I am
> > pretty stuck on this one.

> > dan

> Query:

> > I have entered the GW and routes, and DNS.

> Your RH machine is not a DNS server, right?  Or
> doesn't think its one?

> What does your /etc/resolv.conf look like?

> Mike

looks like this:
nameserver 1.2.3.4   # <<--this is the dns that gets used by nslookup
nameserver 5.6.7.8   #     btw, this is our ISP #, on the other side
nameserver 9.0.1.2   #     of our firewall.

dan

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1. nslookup works, ping #'s works, ping domain fails?

I just upgraded a RH4.2 box to RH 5.0. I can ping ip numbers but when I try
to use a domain name, it can't be resolved


ping: unknown host teleport.com

When I try nslookup, it resolves the number right away.


Default Server:  c3p0.mesd.k12.or.us
Address:  198.236.68.21

Server:  c3p0.mesd.k12.or.us
Address:  198.236.68.21

Name:    teleport.com
Addresses:  192.108.254.12, 192.108.254.10

If I just ping the IP # it works fine.


PING 192.108.254.12 (192.108.254.12): 56 data bytes
64 bytes from 192.108.254.12: icmp_seq=0 ttl=244 time=53.0 ms
64 bytes from 192.108.254.12: icmp_seq=1 ttl=244 time=44.8 ms

I have other RH5 linux boxes on our network and they are working just fine.
This is the only one giving me a headache.

Where should I go from here?

;-) Paul

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