CentOS - Jul 2009 - Configure a local DNS caching nameserver: partial success

Hi,

The subject says it all. On my "server" machine in the local LAN 
(192.168.1.252 in a 192.168.1.0/24 network), I setup Bind. I installed 
the 'caching-nameserver' package, which provides a set of configuration 
files for Bind so it can be used as a caching nameserver out of the box.

On the server :

I start bind (service named start), and try it out.

# host www.google.fr 127.0.0.1
Using domain server:
Name: 127.0.0.1
Address: 127.0.0.1#53
Aliases:
www.google.fr is an alias for www.google.com.
www.google.com is an alias for www.l.google.com.
www.l.google.com has address 209.85.227.99
www.l.google.com has address 209.85.227.103
www.l.google.com has address 209.85.227.104
www.l.google.com has address 209.85.227.147

Which tells me basically that my DNS server works.

Now I'd like all the other machines on the network to use this local DNS 
server instead of my ISP's DNS. First thing, I know Bind uses port 53, 
so I take care to open that port on the server as well as on the other 
machines in the network. Then, I try to use my local DNS server manually 
on one of the machines, but I only get this :

$ host www.google.fr 192.168.1.252
;; connection timed out; no servers could be reached

Since I'm rather new to Bind, this leaves me a bit clueless. I'm 
currently busy reading "DNS & Bind" from O'Reilly, but this
750 page
book is ideal for blocking my terrace door on windy days, and the 
problem is not absence, but wealth of information.

Any suggestions ?

Niki

Hi

Do you really need to use bind perhaps dnsmasq? would be a better
option for you.

Per
E-mail: per at norhex.com [1]
http://www.linkedin.com/in/perqvindesland [2]
--- Original message follows ---
SUBJECT:?[CentOS] Configure a local DNS caching nameserver: partial
success
FROM: ?Niki Kovacs 
TO:?"CentOS mailing list" 
DATE:?02-07-2009 9:48

Hi,

The subject says it all. On my "server" machine in the local LAN 
(192.168.1.252 in a 192.168.1.0/24 network), I setup Bind. I
installed 
the 'caching-nameserver' package, which provides a set of
configuration 
files for Bind so it can be used as a caching nameserver out of the
box.

On the server :

I start bind (service named start), and try it out.

# host www.google.fr 127.0.0.1
Using domain server:
Name: 127.0.0.1
Address: 127.0.0.1#53
Aliases:
www.google.fr is an alias for www.google.com.
www.google.com is an alias for www.l.google.com.
www.l.google.com has address 209.85.227.99
www.l.google.com has address 209.85.227.103
www.l.google.com has address 209.85.227.104
www.l.google.com has address 209.85.227.147

Which tells me basically that my DNS server works.

Now I'd like all the other machines on the network to use this local
DNS 
server instead of my ISP's DNS. First thing, I know Bind uses port
53, 
so I take care to open that port on the server as well as on the
other 
machines in the network. Then, I try to use my local DNS server
manually 
on one of the machines, but I only get this :

$ host www.google.fr 192.168.1.252
;; connection timed out; no servers could be reached

Since I'm rather new to Bind, this leaves me a bit clueless. I'm 
currently busy reading "DNS & Bind" from O'Reilly, but this
750 page
book is ideal for blocking my terrace door on windy days, and the 
problem is not absence, but wealth of information.

Any suggestions ?

Niki
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CentOS mailing list
CentOS at centos.org
http://lists.centos.org/mailman/listinfo/centos

Links:
------
[1] http://webmail.norhex.com/#
[2] http://www.linkedin.com/in/perqvindesland
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>
> Now I'd like all the other machines on the network to use this local
DNS
> server instead of my ISP's DNS. First thing, I know Bind uses port 53, 
> so I take care to open that port on the server as well as on the other 
> machines in the network. Then, I try to use my local DNS server manually 
> on one of the machines, but I only get this :
>
>   
53 udp and tcp ?

On Jul 2, 2009, at 2:48 AM, Niki Kovacs wrote:
> The subject says it all. On my "server" machine in the local LAN
> (192.168.1.252 in a 192.168.1.0/24 network), I setup Bind. I installed
> the 'caching-nameserver' package, which provides a set of  
> configuration
> files for Bind so it can be used as a caching nameserver out of the  
> box.
Make sure iptables allows both TCP and UDP port 53.

Make sure that you have

allow-recursion { your.subnet.address/mask; }
allow-query { any; }

In your named.conf

--Chris