DNS problem

[manish jha]

Hii friends,today i was configuring DNS on Rhel 5.6 server and I am
facing some issues.Please help me

Following is the configuration done by me

[root@server etc]# pwd
/var/named/chroot/etc
[root@server etc]# cat named.conf
// named.rfc1912.zones:
//
// Provided by Red Hat caching-nameserver package
//
// ISC BIND named zone configuration for zones recommended by
// RFC 1912 section 4.1 : localhost TLDs and address zones
//
// See /usr/share/doc/bind*/sample/ for example named configuration
files.
//
zone "." IN {
type hint;
file "named.ca";
};

zone "localdomain" IN {
type master;
file "localdomain.zone";
allow-update { none; };
};

zone "example.com" IN {
type master;
file "forward.zone";
allow-update { none; };
};

zone "1.200.192.in-addr.arpa" IN {
type master;
file "reverse.zone";
allow-update { none; };
};

zone
"0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa"
IN {
type master;
file "named.ip6.local";
allow-update { none; };
};

zone "255.in-addr.arpa" IN {
type master;
file "named.broadcast";
allow-update { none; };
};

zone "0.in-addr.arpa" IN {
type master;
file "named.zero";
allow-update { none; };
};
[root@server etc]#

Now when i am restarting service of named i am getting the following
error

[root@server etc]# service named restart
Stopping named: [ OK ]
Starting named:
Error in named configuration:
zone localdomain/IN: loading master file localdomain.zone: file not
found
_default/localdomain/IN: file not found
zone example.com/IN: loading master file forward.zone: file not found
_default/example.com/IN: file not found
zone 1.200.192.in-addr.arpa/IN: loading master file reverse.zone: file
not found
_default/1.200.192.in-addr.arpa/IN: file not found
zone
0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/
IN: loading master file named.ip6.local: file not found
_default/
0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/
IN: file not found
zone 255.in-addr.arpa/IN: loading master file named.broadcast: file
not found
_default/255.in-addr.arpa/IN: file not found
zone 0.in-addr.arpa/IN: loading master file named.zero: file not found
_default/0.in-addr.arpa/IN: file not found
[FAILED]
[root@server etc]#

i have all the above file in my /avr/named/chroot/var/named directory

[root@server named]# pwd
/var/named/chroot/var/named
[root@server named]# ls
data forward.zone localdomain.zone localhost.zone named.broadcast
named.ca named.ip6.local named.local named.zero reverse.zone
slaves
[root@server named]#

here are configuration of my forward.zone and reverse.zone file

[root@server named]# cat forward.zone
$TTL 86400
@ IN SOA server.example.com. root.server.example.com. (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum

IN NS server.example.com.
server IN A 192.200.1.214
client IN A 192.200.1.213

[root@server named]#

[root@server named]# cat reverse.zone
$TTL 86400
@ IN SOA server.example.com. root.server.example.com.
(
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS server.example.com.
214 IN PTR server.example.com.
213 IN PTR client.example.com.

[root@server named]#

here is my /etc/named.cachingnameserver.conf file

//
// 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;192.200.1.214 };
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";

// Those options should be used carefully because they disable
port
// randomization
// query-source port 53;
// query-source-v6 port 53;

allow-query { any; };
allow-query-cache { localhost; };
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
view localhost_resolver {
match-clients { localhost; };
match-destinations { localhost; };

[root@server named]# cat /etc/resolv.conf
search example.com
nameserver 192.200.1.214
[root@server named]#


I dont know wat the hell is going wrong in the configuration.

please guide me friends.

[PARTH MONGA]

Hi 

Please have a look at the links u r running a chrooted ns

http://www.howtoforge.com/forums/archive/index.php/t-17029.html

http://www.linuxquestions.org/questions/linux-newbie-8/dns-problem-630185/

http://www.webhostingtalk.com/archive/index.php/t-892097.html

Hope this helps

Regards

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[manish jha]

problem didnt solved still.

when i am running command updatedb nothing is coming out as output.

Please have a close look on my config files and the location that i
had specified in my problem.I had created all the necessary files but
dont know why named deamon is unable to locate this files.

Please help me.its a very serious issue for me .

Thanks and regards.

manish kumar jha

[Shefali Malik]

Not bad ji

--
Cheers,
Shefali Malik

[sam]

*Step By Step Configuration of DNS*
-----------------------------------
[root@server1 ~]# yum install bind*
[root@server1 ~]# yum install caching-nameserver
[root@server1 ~]# cd /var/named/chroot
[root@server1 chroot]# cd etc
[root@server1 etc]# cp named.caching-nameserver.conf named.conf
[root@server1 etc]# cat named.rfc1912.zones >> named.conf
[root@server1 etc]# chgrp named named.conf
[root@server1 etc]# vi named.conf
Change the following lines
--------------------------
.
.
listen-on port 53 { 192.168.1.12; }; //ip adderss of
the
system
.
.
.
.
allow-query { 192.168.1.0/24; }; //Network address
.
.
Make comment of these lines
---------------------------
// logging {
// channel default_debug {
// file "data/named.run";
// severity dynamic;
// };
// };
// view localhost_resolver {
// match-clients { localhost; };
// match-destinations { localhost; };
// recursion yes;
// include "/etc/named.rfc1912.zones";
// };
Add the following lines
-----------------------

zone "example.com" IN {
type master;
file "forward.zone";

};
zone "1.168.192.in-addr.arpa" IN {
type master;
file "reverse.zone";
};
Save and exit the file
----------------------
:wq
[root@server1 etc]# cd ../var/named
[root@server1 named]# cp localdomain.zone forward.zone
[root@server1 named]# cp named.local reverse.zone
[root@server1 named]# chgrp named forward.zone
[root@server1 named]# chgrp named reverse.zone
[root@server1 named]# vi forward.zone
Original File
---------------
1 $TTL 86400
2 @ IN SOA localhost root (
3 42 ;
serial (d.
adams)
4 3H ;
refresh
5 15M ;
retry
6 1W ;
expiry
7 1D ) ;
minimum
8 IN NS localhost
9 localhost IN A 127.0.0.1
Modified File
-------------
1 $TTL 86400
2 @ IN SOA server1 root (
3 ------- 42 ;
serial (d.
adams)
4 3H ;
refresh
5 15M ;
retry
6 1W ;
expiry
7 1D ) ;
minimum
8 IN NS server1
9 IN A 192.168.1.12
10 server1 IN A 192.168.1.12
[root@server1 named]# vi reverse.zone
Original File
---------------
1 $TTL 86400
2 @ IN SOA localhost. root.localhost. (
3 1997022700 ; Serial
4 28800 ; Refresh
5 14400 ; Retry
6 3600000 ; Expire
7 86400 ) ; Minimum
8 IN NS localhost.
9 1 IN PTR localhost.
Modified File
-------------
1 $TTL 86400
2 @ IN SOA server1.example.com.
root.server1.example.com. (
3 1997022700 ; Serial
4 28800 ; Refresh
5 14400 ; Retry
6 3600000 ; Expire
7 86400 ) ; Minimum
8 IN NS server1.example.com.
9 12 IN PTR server1.example.com.
[root@server1 named]# vi /etc/resolv.conf
Add this line
-------------
nameserver 192.168.1.12
[root@server1 named]# service named restart
[root@server1 named]# chkconfig named on
[root@server1 named]# dig server1.example.com
; <<>> DiG 9.3.4-P1 <<>> server1.example.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 65231
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL:
0
;; QUESTION SECTION:
;server1.example.com. IN A
;; ANSWER SECTION:
server1.example.com. 86400 IN A 192.168.1.12
;; AUTHORITY SECTION:
example.com. 86400 IN NS server1.example.com.
;; Query time: 1 msec
;; SERVER: 192.168.1.53#53(192.168.1.12)
;; WHEN: Mon Aug 24 18:58:05 2009
;; MSG SIZE rcvd: 67
[root@server1 named]# dig -x 192.168.1.12
; <<>> DiG 9.3.4-P1 <<>> -x 192.168.1.12
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29761
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL:
1
;; QUESTION SECTION:
;12.1.168.192.in-addr.arpa. IN PTR
;; ANSWER SECTION:
12.1.168.192.in-addr.arpa. 86400 IN PTR server1.example.com.
;; AUTHORITY SECTION:
1.168.192.in-addr.arpa. 86400 IN NS server1.example.com.
;; ADDITIONAL SECTION:
server1.example.com. 86400 IN A 192.168.1.12
;; Query time: 0 msec
;; SERVER: 192.168.1.12#53(192.168.1.12)
;; WHEN: Mon Aug 24 18:58:53 2009
;; MSG SIZE rcvd: 106
[root@server1 named]# host 192.168.1.12
12.1.168.192.in-addr.arpa domain name pointer server1.example.com.
[root@server1 named]# host server1.example.com
server1.example.com has address 192.168.1.12
[root@server1 named]# nslookup
> 192.168.1.12

Server: 192.168.1.12
Address: 192.168.1.12#53
12.1.168.192.in-addr.arpa name = server1.example.com.
> server1.example.com

Server: 192.168.1.12
Address: 192.168.1.12#53
Name: server1.example.com
Address: 192.168.1.12
> exit

[root@server1 named]#
** Now Step By Step Configuration of Slave DNS Server **
Before Configure the Slave DNS, Master & Slave computers are should
be
synchronize with Date/Time
(Means Both computer have same date and time)
Steps needed in Master Computer
-------------------------------
[root@server1 ~]# cd /var/named/chroot
[root@server1 chroot]# cd etc
[root@server1 etc]# vi named.conf
then add the following line
---------------------------
options {
.
.
.
allow-transfer { 192.168.1.53; }; // the ip address of
Slave
machine
.
.
.
};
save and exit
:wq
[root@server1 etc]# cd ../var/named
[root@server1 named]# vi forward.zone
then add the IN NS and A entry as follows
-----------------------------------
IN NS station1
IN A 192.168.1.53
station1 IN A 192.168.1.53
save and exit
:wq
[root@server1 named]# vi reverse.zone
then add the IN NS and PTR entry as follows
-----------------------------------
IN NS station1.example.com.
53 IN PTR station1.example.com.
save and exit
:wq
Steps needed in Slave Computer
-------------------------------
[root@station1 ~]# yum install bind*
[root@station1 ~]# yum install caching-nameserver
[root@station1 ~]# cd /var/named/chroot
[root@station1 chroot]# cd etc
[root@station1 etc]# cp named.caching-nameserver.conf named.conf
[root@station1 etc]# cat named.rfc1912.zones >> named.conf
[root@station1 etc]# chgrp named named.conf
[root@station1 etc]# vi named.conf
Change the following lines
--------------------------
.
.
listen-on port 53 { 192.168.1.53 }; //ip adderss of
the
system
.
.
.
.
allow-query { 192.168.1.0/24; }; //Network address
.
.
Make comment of these lines
---------------------------
// logging {
// channel default_debug {
// file "data/named.run";
// severity dynamic;
// };
// };
// view localhost_resolver {
// match-clients { localhost; };
// match-destinations { localhost; };
// recursion yes;
// include "/etc/named.rfc1912.zones";
// };
Add the following lines
-----------------------
zone "example.com" IN {
type slave;
masters { 192.168.1.12; };
file "slaves/forward.zone";
};
zone "1.168.192.in-addr.arpa" IN {
type slave;
masters { 192.168.1.12; };
file "slaves/reverse.zone";
};
Save and exit the file
----------------------
:wq
[root@station1 named]# vi /etc/resolv.conf
Add this line
-------------
nameserver 192.168.1.12
[root@station1 named]# service named restart
[root@station1 named]# chkconfig named on

On Sep 26, 10:17 am, Shefali Malik <shefali.oxy...@gmail.com> wrote:
> Not bad ji [?]

>
>
>
>
>
> On Sun, Sep 25, 2011 at 11:15 AM, PARTH MONGA <kpr...@gmail.com> wrote:
> > Hi
>
> > Please have a look at the links u r running a chrooted ns
>
> >http://www.howtoforge.com/forums/archive/index.php/t-17029.html

> >http://www.linuxquestions.org/questions/linux-newbie-8/dns-problem-63...

> >http://www.webhostingtalk.com/archive/index.php/t-892097.html
>
> > Hope this helps
>
> > Regards
>

>  329.gif
> < 1KViewDownload

[Amardeep Kishore]

Share the all related files and Dir permission listed and attach all files as well .........

Warm Regards
Amardeep kishore
L-3 Linux and OpenSource 

Wipro Infotech

[Alex_hunt]

I had made dns server anyhow and resolved the issue of service of
named deamon not starting.But i am facing another kind of problem now.

when I am using commands like nslookup and host following error is
coming.

[root@server ~]# nslookup 192.200.1.214
Server: 192.200.1.214
Address: 192.200.1.214#53

** server can't find 214.1.200.192.in-addr.arpa.: NXDOMAIN

[root@server ~]# nslookup server.example.com
Server: 192.200.1.214
Address: 192.200.1.214#53

** server can't find server.example.com: NXDOMAIN

[root@server ~]# host 192.200.1.214
Host 214.1.200.192.in-addr.arpa. not found: 3(NXDOMAIN)

[root@server ~]# host example.com
example.com has address 192.0.43.10
example.com has IPv6 address 2001:500:88:200::10

here are my configuration files

[root@server ~]# cat /var/named/chroot/var/named/forward.zone

$TTL 86400
@ IN SOA server.example.com. root.server.example.com. (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
IN NS server.example.com.

@ IN NS 192.200.1.214

server IN A 192.200.1.214
client IN A 192.200.1.213

[root@server ~]# cat /var/named/chroot/var/named/reverse.zone

$TTL 86400
@ IN SOA server.example.com. root.server.example.com.
(
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS server.example.com.
214 IN PTR server.example.com.
213 IN PTR client.example.com.

[root@server ~]# cat /etc/named.caching-nameserver.conf

//
// 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 { 192.200.1.214; };
// 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";

// Those options should be used carefully because they disable port
// randomization
// query-source port 53;
// query-source-v6 port 53;

allow-query { any; };
allow-query-cache { localhost; };
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
view localhost_resolver {
match-clients { localhost; };
match-destinations { localhost; };

recursion yes;
include "/etc/named.rfc1912.zones";
};

here is my named.conf file entry

[root@server ~]# cat /var/named/chroot/etc/named.conf

// named.rfc1912.zones:
//
// Provided by Red Hat caching-nameserver package
//
// ISC BIND named zone configuration for zones recommended by
// RFC 1912 section 4.1 : localhost TLDs and address zones
//
// See /usr/share/doc/bind*/sample/ for example named configuration
files.
//

# zone "." IN {

could you please tell me wats going wrong in my configurations.
Thanks in advance.

[PARTH MONGA]

See manish 

To cut it short and simple 

just configure a simple dns > without chrooted do that gain confidence resolve till A TO M root servers and then go for chroot.

ELSE IF YOU DONT HAVE PATIENCE THIS DOCUMENT WILL SAVE YOUR LIFe

Chroot-BIND-HOWTO-4.html

CHEERS AND HAVE FUN//////

BUT TRY TO DIG INTO A SOLUTION FIRST .

REGARDS

is there anything to 

[PARTH MONGA]

AMARDEEP Ji 

L3 SUPPORT WIPRO >? 

[Alex_hunt]

here are the output of dig command on my dns server

[root@server ~]# dig -x 192.200.1.214

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-2.P1.el5 <<>> -x 192.200.1.214

;; global options: printcmd
;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 26876
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;214.1.200.192.in-addr.arpa. IN PTR

;; AUTHORITY SECTION:
192.in-addr.arpa. 8915 IN SOA z.arin.net. dns-ops.arin.net. 2011092605
1800 900 691200 10800

;; Query time: 1 msec
;; SERVER: 192.200.1.214#53(192.200.1.214)
;; WHEN: Mon Sep 26 10:53:12 2011
;; MSG SIZE rcvd: 98

[root@server ~]# dig server.example.com

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-2.P1.el5 <<>> server.example.com

;; global options: printcmd
;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 6176
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;server.example.com. IN A

;; AUTHORITY SECTION:
example.com. 1775 IN SOA dns1.icann.org. hostmaster.icann.org.
2011061768 7200 3600 1209600 3600

;; Query time: 2 msec
;; SERVER: 192.200.1.214#53(192.200.1.214)
;; WHEN: Mon Sep 26 10:52:23 2011
;; MSG SIZE rcvd: 97


may be this info is useful for u guys to find out where actually is
the problem.

[Sudarshan Bisht]

Hi

I think you have not configured DNS properly. The dig command is able to query but not getting answer. You FQDN should resolve into IP and IP should resolve to FQDN.

Check your forward zone and reverse zone file again.

Regards
Sudarshan

[Sudarshan Bisht]

Hi

You can try the following things.

Just copy the option block to you on top of named.conf file
# vi /var/named/chroot/etc/named.conf

//
options {
       listen-on port 53 { 192.200.1.214; };
//      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";

       // Those options should be used carefully because they disable port
       // randomization
       // query-source    port 53;
       // query-source-v6 port 53;

       allow-query     { any; };
       allow-query-cache { localhost; };
};

And in forward zone change following  line
@               IN NS           192.200.1.214
to
                 IN A             192.200.1.214

In reverse zone file add line after this line
   IN      NS      server.example.com.
   IN      A         192.200.1.214

Do the above mention changes, you DNS will work.

Regards
Sudarshan

[Alex_hunt]

Hii sudarshan

Thanks for giving your valuable time.
I had done changes wich u specified in the above solution,but dns is
not working still.

moreover please tell me one thing, why i had to insert entry of IN
A 192.200.1.214 i my reverse zone file,since reverse zone file
contains PTR record not the A record.Also named.conf file contains
information of zones only but you had specified to copy following
lines

# vi /var/named/chroot/etc/named.conf
//
options {
listen-on port 53 { 192.200.1.214; };
// 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";

// Those options should be used carefully because they disable
port
// randomization
// query-source port 53;
// query-source-v6 port 53;

allow-query { any; };
allow-query-cache { localhost; };

};

I had these lines in my /etc/named.caching-nameserver.conf file.

Is it wrong.

[Sudarshan Bisht]

I have configured DNS server like this and it is working fine for me.

As far as you first question is concerned I have the following explanation.

In reverse.zone file, we give
IN NS stationX.example.com.
Means we are telling the reverse.zone file that stationX.example.com. is our nameserver.
IN A 192.168.1.10
Means we are telling the ip of the name server.

Hope you understand my point.

Regards
Sudarshan

On Wed, Sep 28, 2011 at 1:33 PM, Alex_hunt <er.man...@gmail.com> wrote:

Hii sudarshan

Thanks for giving your valuable time.
I had done changes wich u specified in the above solution,but dns is
not working still.

moreover please tell me one thing, why i had to insert entry of   IN
A  192.200.1.214 i my reverse zone file,since reverse zone file

contains PRecquire user   123TR record not the A record.Also named.conf file contains

information of zones only but you had specified to copy following
lines

# vi /var/named/chroot/etc/named.conf
//
options {
      listen-on port 53 { 192.200.1.214; };
//      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";

      // Those options should be used carefully because they disable
port
      // randomization
      // query-source    port 53;
      // query-source-v6 port 53;

      allow-query     { any; };
      allow-query-cache { localhost; };

};

I had these lines in my /etc/named.caching-nameserver.conf file.

Is it wrong.

--

[Sudarshan Bisht]

And you can copy option block in named.conf file. You can try it out. Hope you got some luck on it.
And best of luck with your experiments.

Regards
Sudarshan