thankx u came back,

i mentioned in post 25 that

i have 3 system connected to a LAN

172.16.0.1 - is my ISP address

192.168.1.2- on which i am trying to configure DNS, and internet on this is through (192.168.1.1- the proxy server)

192.168.1.1- proxy server (on internet is directly coming through isp)

This is vague enough.
I still cannot figure out what is the IP of your isp's nameserver. And there is no such entry in your /etc/resolv.conf to help me understand. I think it is the 192.168.1.1.

what is vague enough , i already mentioned in post 25 that

i have 3 system connected to a LAN

172.16.0.1 - is my ISP address

192.168.1.2- on which i am trying to configure DNS, and internet on this is through (192.168.1.1- the proxy server)

192.168.1.1- proxy server (on internet is directly coming through isp)

and your thinking is wrong about my isp ip ,it is 172.16.0.1 not 192.168.1.1

and my /etc/resolv.conf file consist

search mandrake
nameserver 127.0.0.1


now could u plz. help me out.

emailssent,

The reason that is said to be vague is, 172.16.0.1 is not the *public* IP address that you are getting from your ISP. 172.16.0.1 is a *private* IP address only available to a local private network.

To find your public IP address that is assigned by your ISP
http://www.whatismyip.com

Then a dig has to be run on the ISP from the website above to find the nameserver for your ISP.

when i click http://www.whatismyip.com/ it gives my systems public ip,

and if 172.16.0.1 if not public ip so what should i do , becz it is the only ip provided by ISP and this ip is configured in my system to access internet.

so, finally how can i dig yahoo.com or some else site.

newbie is confused and need help

Can you do a dig command on the public IP that was returned from whatismyip.com? This will output your ISP's nameservers. The main one needs to be put in /etc/resolv.conf with the line
nameserver isp_primary_nameserver
replace isp_primary_nameserver with the IP address of your ISP's primary DNS server.

Did you make sure that the root.hints is loading correctly? You should not have any forwarders if you're loading root.hints.

@darthtux

when dig the ip returned by whatismyip.com then it says

# dig -x 203.101.86.157

; <<>> DiG 9.2.3rc2 <<>> -x 203.101.86.157
;; global options: printcmd
;; connection timed out; no servers could be reached

@chort
thankx chort....

how can i make sure that root.hints is loading correctly..............

any why should i not put forwarders in named.conf file


-jack

Hi emailssent,

I can tell you how to find you ISP's real DNS address using the nslookup command, since I'm used to it.
(I use bind from the old days and dig is a relatively new command)
The last answer will tell you your ISP's DNS server names and IPs.

dig -x 203.101.86.157

; <<>> DiG 9.2.4rc5 <<>> -x 203.101.86.157
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 26381
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;157.86.101.203.in-addr.arpa. IN PTR

;; AUTHORITY SECTION:
86.101.203.in-addr.arpa. 3600 IN SOA dnsdel.mantraonline.com. root.dnsdel.mantraonline.com. 2004092101 3600 3600 1209600 3600

;; Query time: 453 msec
;; SERVER: 192.168.0.1#53(192.168.0.1)
;; WHEN: Tue Sep 28 03:28

@bathory
First of all thankx for coming back,

hi bathory,

# nslookup
> set q=any
> server ns1.yahoo.com

after this when i press enter key, it gives me

$ nslookup
> set q=any
> server ns1.yahoo.com
nslookup: Couldn't find server 'ns1.yahoo.com': Temporary failure in name resolution

@darthtux

could plz. expain it,
why u can dig , and i can't dig.....



-jack

OK it's natural since your DNS cannot resolve names (yest). Replace ns1.yahoo.com with it's IP: 66.218.71.63 and try that again

$ nslookup
> set q=any
> server 66.218.71.63
Default server: 66.218.71.63
Address: 66.218.71.63#53
>

now what i have to put in

@yourISPdomain.com

Just write the domain of you ISP (e.g. domain.com) and it'll tell you who are the authoritative servers for it.
Then use them in /etc/resolv.conf and /etc/named.conf (as forwarders)

@bathory

I don't have any domain name of my ISP.