name server

ilnli · 11-07-2005, 12:21 AM

I am running a caching nameserver on my linux machine but when i do a nslookup from linux machine the name is resolved very fast and when I do nslookup form a windows machine whose primary name server is my linux machine then the name is resolved to slow and some time it does not resolves from my linux machine and is resolved from my isp name server. here is the output of some important command and configs

windows machine

Code:

C:\Documents and Settings\Asif>nslookup hotmail.com
*** Can't find server name for address 192.168.0.3: Non-existent domain
Server:  pathfinder.nexlinx.net.pk
Address:  202.59.80.10

Non-authoritative answer:
Name:    hotmail.com
Addresses:  64.4.33.7, 64.4.32.7

ipconfig on windows machine

Code:

Ethernet adapter LAN:

        Connection-specific DNS Suffix  . : lakecityserver.redirectme.net
        Description . . . . . . . . . . . : Compaq NC3121 Fast Ethernet NIC
        Physical Address. . . . . . . . . : 00-50-8B-05-01-AC
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.0.30
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.0.3
        DHCP Server . . . . . . . . . . . : 192.168.0.3
        DNS Servers . . . . . . . . . . . : 192.168.0.3
                                            202.59.80.10
        Lease Obtained. . . . . . . . . . : Monday, November 07, 2005 9:13:21 AM

        Lease Expires . . . . . . . . . . : Monday, November 07, 2005 3:13:21 PM

linux machine

Code:

root@thelakecity# nslookup hotmail.com
Server:         127.0.0.1
Address:        127.0.0.1#53

Non-authoritative answer:
Name:   hotmail.com
Address: 64.4.33.7
Name:   hotmail.com
Address: 64.4.32.7

root@thelakecity#

and why on my windows machine the following error occurs

Code:

*** Can't find server name for address 192.168.0.3: Non-existent domain

ashamril · 11-07-2005, 02:44 AM

from your linux machine, do u able to nslookup if u change your nameserver from 127.0.0.1 to 192.168.0.3

Draygo · 11-07-2005, 03:52 AM

The reason it's probably taking so long and spitting out that error is it's trying to do a reverse lookup of the ip address 192.168.0.3. Have you setup your reverse dns for that ip? Since 192.168.x.x is private ip space you will have to setup a local one on your dns server. It should eliminate that error.

ilnli · 11-07-2005, 05:58 AM

no I haven't done the reverse lookup right now

ilnli · 11-07-2005, 10:18 PM

thanks everyone my problem has been solved by adding a reverse entry for my lan ip