problom with Configure DNS server in centos 6

deep27ak · 01-02-2012, 10:17 PM

Your files are in real mesh..so I am explaining only the lan part and not the wan part
or for better results follow the link which I have posted earlier in post #11

vi /etc/named.conf

Code:

options {
listen-on port 53 {127.0.0.1; 192.168.0.0/24; };
listen-on-v6 port 53 { none; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
query-source port 53
allow-query { localhost; 192.168.0.0/24; };

allw-transfer {localhost; 192.168.0.0/24; }; <-give sapce in above both red lines after semicolon

recursion yes;

vi /etc/named/pure.world.lan <---------------check the location as I believe it should be /var/named/ because there is no named directory in /etc/

Code:

$TTL 86400
@ IN SOA asd.pure.world. root.pure.world.(
2011071002 ;Serial  <---------change the serial key every time you make change
3600 ;Refresh
1800 ;Retry
604800 ;Expire
86400 ;Minimum TTL

)

IN NS asd.pure.world.
IN A 192.168.0.30           <----------remove this line
asd IN A 192.168.0.30
IN MX 10 asd.pure.world.
ftp IN CNAME ftp.pure.world
~
~
~
~
~
~
~
"/var/named/pure.world.lan" 16L, 503C

vi /etc/named/0.168.192.db <---------------check the location

Code:

$TTL 86400
@ IN SOA asd.pure.world. root.pure.world. (
2011071001 ;Serial
3600 ;Refresh
1800 ;Retry
604800 ;Expire
86400 ;Minimum TTL

)


IN NS asd.pure.world.
30 IN PTR asd.pure.world.
~

~
~
~
"/var/named/0.168.192.db" 20L, 410C

as you miss this part every time so please notice this
take a backup of current resolv.conf

Code:

#cp /etc/resolv.conf /resolv.conf.orig

Code:

#vi /etc/resolv.conf (remove everyline and add this) nameserver 192.168.0.30

Asila · 01-03-2012, 12:57 AM

hi
sir I had change the lines U told me to do.

But It still not work

Quote:

; <<>>DiG 9.7.3-P3-Readhat-9.7.3-2.el6_1.P3.3<<>> -x192.168.0.30
;; global options: +cmd
;; connection timed out; no server could be reaches

deep27ak · 01-03-2012, 02:11 AM

post your resolv.conf

Asila · 01-03-2012, 03:44 AM

this is resolv.conf

Quote:

#Generated by NetworkManager
search pure.world
maneserver 192.168.0.30
~

deep27ak · 01-03-2012, 04:01 AM

Quote:

Originally Posted by Asila

this is resolv.conf
#Generated by NetworkManager
search pure.world
maneserver 192.168.0.30 <----check the spelling of nameserver

show the output of

Code:

#nslookup asd.pure.world

and your zone files including named.conf and named.rfc1912.zones

Asila · 01-03-2012, 04:47 AM

resolv.conf

Quote:

#Generated by NetworkManager
search pure.world
nameserver 192.168.0.30

#nslookup asd.pure.world

Quote:

;;connection timed out; no server could be reached

deep27ak · 01-03-2012, 04:52 AM

First thing you should read the complete post and then reply.

I have a feeling you are not considering what ever I post here. As every time I have to repeat my words twice.

lithos · 01-03-2012, 04:57 AM

In this whole messy process at post #13
Mr. deep27ak wrote you the steps:

Quote:

Originally Posted by deep27ak

then restart the service

Code:

#service named restart

try this command and show me the output

Code:

#nslookup asd.pure.world.

wrote you to start/restart the Named service (because it resolves IP's and names)

Have you ever done it ?
Not running the Named service means resolving not working -> as in your case.

Asila · 01-03-2012, 01:00 PM

I hve read the complete post. as will I follw all the staps on this link
dns-configuration-in-rhel-forward-and-reverse-zone

but I still have error and the DNS does not work

sorry sir

deep27ak · 01-03-2012, 09:39 PM

Quote:

Originally Posted by Asila

I hve read the complete post. as will I follw all the staps on this link
dns-configuration-in-rhel-forward-and-reverse-zone

but I still have error and the DNS does not work

sorry sir

I asked you something?

Quote:

Originally Posted by deep27ak

show the output of

and your zone files including named.conf and named.rfc1912.zones

Asila · 01-04-2012, 12:04 AM

named.conf

Quote:

//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//

options {
listen-on port 53 {127.0.0.1; 192.168.0.0/24; };
listen-on-v6 port 53 { none; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
query-source port 53
allow-query { localhost; 192.168.0.0/24;};

allw-transfer {localhost; 192.168.0.0/24;};

recursion yes;

recursion yes;
dnssec-enable yes;
dnssec-validation yes;
dnssec-lookaside auto;

/*Path to ISO DLV key*/
bindkeys-file "/etc/named.iscdlv.key";
};
logging {
channel default_debud {
file "data/named.run";
severity dynamic;
};
};
view localhost_resolver {
mathch-clients { localhost; 192.168.0.10; };
match-destination { localhost; 192.168.0.10; };
recursion yes;
include "/etc/named.rfc1912.zones";
};
view "internal" {
match-clients {
localhost;
192.168.0.0/24;
};

zone "." IN {
type hint;
file "named.ca";
};
zone "pure.world" IN {
type master;
file "pure.world.lan";
allow-update { none; };
};
zone "0.168.192.in-addr.arpa" IN {
type master;
file "0.168.192.db";
allow-update { none; };
};
include "/etc/named.rfc1912.zones";
};

};

view "external" {
match-clients { any; };
allow-query { any; };
recursion on;
zone "pure.world" {
type master;
file "pure.world.wan";
allow-update { none; };
};
zone "80.0.168.192.in-addr.arpa" IN {
type master;
file "80.0.168.192.db";
allow-update { none; };
};

};

deep27ak · 01-04-2012, 12:35 AM

use this in your named.conf
(remove everything and paste this)

Code:

//
// named.caching-nameserver.conf
//
// Provided by Red Hat caching-nameserver package to configure the
// ISC BIND named(8) DNS server as a caching only nameserver
// (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
// DO NOT EDIT THIS FILE - use system-config-bind or an editor
// to create named.conf - edits to this file will be lost on
// caching-nameserver package upgrade.
//
options {
        listen-on port 53 { 127.0.0.1; 192.168.0.80; };
        listen-on-v6 port 53 { ::1; };
        directory       "/var/named";
        dump-file       "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";
        memstatistics-file "/var/named/data/named_mem_stats.txt";
        query-source    port 53;
        query-source-v6 port 53;
        allow-query     { localhost; 192.168.0.0/24; };
};
logging {
        channel default_debug {
                file "data/named.run";
                severity dynamic;
        };
};
view localhost_resolver {
        match-clients      { localhost; 192.168.0.0/24; };
        match-destinations { localhost; 192.168.0.0/24; };
        recursion yes;
        include "/etc/named.rfc1912.zones";
};

#vi named.rfc1912.zones

Code:

(Make sure these lines are their in this file)
zone "pure.world" IN {
type master;
file "pure.world.lan";
allow-update { none; };
};
zone "0.168.192.in-addr.arpa" IN {
type master;
file "0.168.192.db";
allow-update { none; };
};
include "/etc/named.rfc1912.zones";
};

};

view "external" {
match-clients { any; };
allow-query { any; };
recursion on;
zone "pure.world" {
type master;
file "pure.world.wan";
allow-update { none; };
};
zone "80.0.168.192.in-addr.arpa" IN {
type master;
file "80.0.168.192.db";
allow-update { none; };
};

};

also make sure that your firewall is not blocking the DNS

h.haider · 04-27-2012, 11:48 PM

Asila.....!!

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