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Re: finding the ip address for dns, nslookup & etc.



Alan Chandler wrote:
On 09/08/10 13:06, hugo vanwoerkom wrote:
Alan Chandler wrote:
On 08/08/10 20:14, peasthope@shaw.ca wrote:
I have a Debian router with dnsmasq working.
It connects to the ISP with DHCP. What is the
standard way to find the ip address or addresses,
which dnsmasq is using for upstream nameservers?
Here are some things which don't help.

joule:~# cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by
resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.0.1
search pi.shawcable.net
joule:~# nslookup pi.shawcable.net
Server: 127.0.0.1
Address: 127.0.0.1#53

Non-authoritative answer:
*** Can't find pi.shawcable.net: No answer



I am not sure I fully understand your question. However

dhclient, when it gets given a dhcp address will setup
/etc/resolv.conf to point to the upstream nameservers. At least that
is what happens with me. So I have both 127.0.0.1 but also the
upstream nameservers in my /etc/resolv.conf



I am behind a 2wire gateway that comes with the Telmex Infinitum
subscription, and my /etc/resolv.conf reads:

hugo@debian:/etc$ more resolv.conf
domain gateway.2wire.net
search gateway.2wire.net
nameserver 192.168.1.254

and ifconfig reads partially:

wlan0 Link encap:Ethernet HWaddr 00:14:a4:4c:3c:d5
inet addr:192.168.1.194 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::214:a4ff:fe4c:3cd5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12867 errors:0 dropped:0 overruns:0 frame:0
TX packets:12702 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:15905344 (15.1 MiB) TX bytes:1088705 (1.0 MiB)

So does that mean that the gateway acts as a nameserver?

I am not sure where you are running ifconfig. If you are running it on the gateway, then yes.


No I am running ifconfig on the debian laptop behind the gateway. I can run anything on the gateway because the password is not what it says it is on the installation disk. Typical.

Hugo


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