Re: DNS problem, nslookup not working

[Kevin Colby <kevinc grainsystems com>]

Brian A Bucher wrote:
>
> [...] 
>
> >From /etc/resolv.conf:
> ------------------------------------------------
> 
> domain n-p-i.net
> search n-p-i.net
> nameserver 192.168.3.5

This is what told it that 192.168.3.5 _should_ be running named.

> [bab1 npisrv1 bab1]$ nslookup
> *** Can't find server name for address 192.168.3.5: Server failed
> *** Default servers are not available

This indicates that 192.168.3.5 is not, in fact, running named.
Okay, fine.  What confuses me is this:

> > server ns1.n-p-i.net
> Default Server:  ns1.n-p-i.net
> Address:  216.230.78.179

Well, what is it?  192.168.3.5 or 216.230.78.179?

	- Kevin Colby
	  kevinc grainsystems com



Brian A Bucher wrote:
> 
> I'm not sure which list this question is best suited for, so if
> I should have sent it to another list, please let me know and
> I'll submit it there.
> 
> I've recently reinstalled Rh6.1 on a machine that my company
> will be using as a server (name, mail, web, file) and am
> having some problems with the nameserver.  I am able to connect
> to machines by hostname (open netscape, plug in www.yahoo.com,
> no problem) but when I type nslookup I get:
> 
> [bab1 npisrv1 bab1]$ nslookup
> *** Can't find server name for address 192.168.3.5: Server failed
> *** Default servers are not available
> 
> Now, my server is npisrv1.n-p-i.net, with an IP address of
> 192.168.3.5 as viewed from behind a switch (I think that's the
> correct term), and as 216.230.78.179 as viewed from machines
> elsewhere on the internet.
> 
> One general question I have is, if I'm using this machine as a
> nameserver, do I need another nameserver (for example, my
> ISP's nameserver) anywhere in my system?
> 
> I'm reading sections from Red Hat Linux 6 Server by Kabir and
> the O'Reilly DNS and BIND (3rd ed.) by Albitz and Liu, but I'm
> still confused.
> 
> Thanks in advance for any help,
> Brian
> 
> I've included all relevant files (I think) including:
> 
> /etc/hosts
> /etc/host.conf
> /etc/resolv.conf
> /etc/named.conf
> 
> >From /etc/hosts:
> ------------------------------------------------
> 192.168.3.5     npisrv1.n-p-i.net       www ns1 mail ftp npisrv1
> 127.0.0.1       localhost       localhost
> 
> >From /etc/host.conf:
> ------------------------------------------------
> order hosts, bind
> multi on
> 
> >From /etc/resolv.conf:
> ------------------------------------------------
> 
> domain n-p-i.net
> search n-p-i.net
> nameserver 192.168.3.5
> 
> >From /etc/named.conf
> ------------------------------------------------
> 
> options {
>         directory "/var/named";
> };
> zone "." {
>         type hint;
>         file "named.ca";
> };
> zone "n-p-i.net"{
>         type master;
>         file "n-p-i.net";
> };
> zone "3.168.192.IN-ADDR.ARPA"{
>         type master;
>         file "named.local";
> };
> zone "0.0.127.IN-ADDR.ARPA"{
>         type master;
>         file "127.0.0";
> };
> 
> --------------------------------------------------------------
> 
> milkyway(5)% nslookup
> Default Server:  milkyway.mm.mtu.edu
> Address:  141.219.66.35
> 
> > set type=ns
> > n-p-i.net
> Server:  milkyway.mm.mtu.edu
> Address:  141.219.66.35
> 
> Non-authoritative answer:
> n-p-i.net       nameserver = ns1.n-p-i.net
> 
> Authoritative answers can be found from:
> ns1.n-p-i.net   internet address = 216.230.78.179
> > set type=soa
> > n-p-i.net.
> Server:  milkyway.mm.mtu.edu
> Address:  141.219.66.35
> 
> Non-authoritative answer:
> n-p-i.net
>         origin = npisrv1.n-p-i.net
>         mail addr = hostmaster.npisrv1.n-p-i.net
>         serial = 2000050102
>         refresh = 3600 (1 hour)
>         retry   = 900 (15 mins)
>         expire  = 1209600 (14 days)
>         minimum ttl = 43200 (12 hours)
> 
> Authoritative answers can be found from:
> n-p-i.net       nameserver = ns1.n-p-i.net
> ns1.n-p-i.net   internet address = 216.230.78.179
> >
> > server ns1.n-p-i.net
> Default Server:  ns1.n-p-i.net
> Address:  216.230.78.179
> 
> > n-p-i.net.
> Server:  ns1.n-p-i.net
> Address:  216.230.78.179
> 
> n-p-i.net
>         origin = npisrv1.n-p-i.net
>         mail addr = hostmaster.npisrv1.n-p-i.net
>         serial = 2000050102
>         refresh = 3600 (1 hour)
>         retry   = 900 (15 mins)
>         expire  = 1209600 (14 days)
>         minimum ttl = 43200 (12 hours)
> n-p-i.net       nameserver = ns1.n-p-i.net
> > set type=ns
> > n-p-i.net.
> Server:  ns1.n-p-i.net
> Address:  216.230.78.179
> 
> n-p-i.net       nameserver = ns1.n-p-i.net
> >
> 
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> 
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