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-   -   DNS does not respond (https://www.linuxquestions.org/questions/linux-newbie-8/dns-does-not-respond-317913/)

jared78 04-27-2005 10:27 PM

DNS does not respond
 
hi,
I use RH Linux 9.0.
To connect to the net my ISP has given me an application called crclient.
i login to this application by ./crclient -u username & password.
He has also given me the IP,Subnet,Default gateway,DNS1,DNS2 addresses.
I have entered these data.
Now I am able to ping the IP,subnet successfully.
DNS doesn't respond.
The same adresses work in my Windows 2K m/c.
Am i missing out on any other configuration?
Is there is a checklist I need to go through?
I am new to Linux,any help would be appreciated..

thanks,
Jared

zWaR 04-28-2005 03:19 AM

Try to disable iptables. Login as root and write this:
1.
Code:

iptables -F
if this returns error, try this (if iptables -F is successful, it wont return anything):
2.
Code:

whereis iptables
You will get the absolute path to the file iptables (if exists). Copy the path and run:
Code:

<absolute_path> -F
if this is still returning error messages, try to run:
Code:

services iptables stop
Now try your application again. If the thing works, scan your network traffic with Ethereal (http://www.ethereal.com/), so you'll see what ports do you have to open. To open your ports just use the Firewall GUI which (i'm pretty sure) is installed with RH 9.0.

If the application is not working despite you have flushed iptables, then also use Ethereal, maybe you can find out what's wrong, but if it's working on windows, than i suppose the problem are iptables!

jared78 05-11-2005 06:24 PM

thanks zWAR..

the problem got solved.it was setting to static ip and configuring my ISp client that did that trick..

thanks again for the very useful info on iptables...Very neatly put fr a newbie like me..

cheers,
Jared


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