Hey everyone,

I need some help, I have set up a linux box using fedora 10, I have installed Shorewall and Squid and they are working fine. I have two Nic cards install.

Ip eth0 192.168.249.253
and Ip eth1 10.0.14.254

I have IP forwading enabled on the kernel and on the eth1 card the gateway is set for the eth0 ip. Dns is set for the eth1 ip as well as my ISP external servers.

The internet works fine on the Linux box, but when I try to ping a domain on one of the lan workstations it can not resolve I can ping the ip address of yahoo and google so I know they see the internet. Am I missing something I have Bind running
Any help would really help

what is set in
what is the output from
on the clients.

/etc/resolv.conf

nameserver 10.0.14.254
nameserver 216.136.57.90
nameserver 168.215.210.50

search dolphin*********.com

when pinging the domain says unknown host

what is the output from
on the clients

does the firewall allow queries on port 53?

Hi,

how to find out the routing scheme being used for the host in my organisation?

How to find the routing protocols being used in my organisation?
please reply. Thanks.

palisetty_suman

Please start a new thread for your problem, instead of hijacking this one.

Thank you

HI repo,

i am actually a fan of you, so i was reading your answer and unknowingly wrote it here. Sorry.

It attempts to but on the clients the DNS server it is set to is the linux machine 10.0.14.254 and it states that it is.
port 53 is open on the firewall. I pretty much copied the rules from the old box and imported them into the new one.

can you give t output from
on the client?

I honestly at the moment can not since the new box is meant to replace the old one and it is not hooked up untill I can resolve that issue. We have tried various times to get it to work and still nothing. so we have taken it off the network untill i can generate ideas of where to look for the problem and then test it again.

The old box handles the internet email and proxy for the lan so I can not take it offline during operation hours. if you can direct me to where to look at possible issues then I could look into it.

Question does bind have to have an ip to listen on or can it be told to listen to which ever card for requests?

I have experience with linux but I never had to do this type of work before for a lan. Plus I am a windows based person but I am loving linux and have learned a great deal about it.

ok so no more help :-(

How can we help if you can't provide basic information.
We need to rule out possible problems.

nslookup from the client is needed to see if the dns server in /etc/resolv.conf is reachable, and answering.
In squid you need to allow queries from the client.
First try with the DNS from the provider to see if they work.
Make sure port 53 is open
telnet 10.0.14.254 53

I will look into those issues tuesday night and get you that info, my apologies.

Ok I got to test it out and i havethe message that the clients give me when doing a nslookup.

C:\Documents and Settings\Administrator>nslookup google.com
*** Can't find server name for address 10.0.14.254: No response from server
*** Default servers are not available
Server: UnKnown
Address: 10.0.14.254

*** UnKnown can't find google.com: No response from server

C:\Documents and Settings\Administrator>nslookup google.com
*** Can't find server name for address 10.0.14.254: No response from server
*** Default servers are not available
Server: UnKnown
Address: 10.0.14.254

*** UnKnown can't find google.com: No response from server


Also is there a reason that fedora 10 keeps deleting the dns that is inputed, everytime I restart network it removes the dns entries.

Should I be using RHEL as a server instead of Fedora,

Your server doesn't allow dns queries.
Seems to me squid doesn't allow connections from the client
or the firewall is blocking request on port 53

from the client do
telnet 10.0.14.254 53

Try to put a external DNS (from your provider) into the client and see if that works.