Solved

dns issue

Posted on 2014-10-16
6
163 Views
Last Modified: 2014-11-14
I did configure dns server and trying to test reverse lookup. seems to be some issue.
can some one assist with this.

Here is my config

[root@dns named]# cat /etc/named.conf
//
// 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; };
        listen-on-v6 { 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";
        allow-query     { localhost; 192.168.1.0/24; };
        allow-transfer     { localhost; 192.168.1.0/24; };
        recursion yes;

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

        /* Path to ISC DLV key */
        bindkeys-file "/etc/named.iscdlv.key";
        managed-keys-directory "/var/named/dynamic";
};

logging {
        channel default_debug {
                file "data/named.run";
                severity dynamic;
        };
};


view "internal" {
     match-clients {
         localhost;
         192.168.1.0/24;
     };


     zone "." IN {
        type hint;
        file "named.ca";
     };


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

     zone "1.168.192.in-addr.arpa" IN {
         type master;
         file "1.168.192.db";
         allow-update { none; };
     };
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
};

[root@dns named]# cat /var/named/1.168.192.db
$TTL 86400
@   IN  SOA     dns.example.com. root.example.com. (
        2014080201  ;Serial
        3600        ;Refresh
        1800        ;Retry
        604800      ;Expire
        86400       ;Minimum TTL
)


        IN  NS      dns.example.com.


        IN  PTR     example.com.
        IN  A       192.168.1.0


120      IN  PTR     dns.example.com.
130      IN  PTR     test.example.com.



===================================================================================================

Here is the test


[root@dns named]# dig dns.example.com

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.23.rc1.el6_5.1 <<>> dns.example.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48033
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

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

;; ANSWER SECTION:
dns.example.com.        86400   IN      A       192.168.1.120

;; AUTHORITY SECTION:
example.com.            86400   IN      NS      dns.example.com.

;; Query time: 0 msec
;; SERVER: 192.168.1.120#53(192.168.1.120)
;; WHEN: Thu Oct 16 08:00:32 2014
;; MSG SIZE  rcvd: 63



[root@dns named]# dig 192.168.1.120

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.23.rc1.el6_5.1 <<>> 192.168.1.120
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40105
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;192.168.1.120.                 IN      A

;; AUTHORITY SECTION:
.                       9789    IN      SOA     a.root-servers.net. nstld.verisign-grs.com. 2014101600 1800 900 604800 86400

;; Query time: 0 msec
;; SERVER: 192.168.1.120#53(192.168.1.120)
;; WHEN: Thu Oct 16 08:00:38 2014
;; MSG SIZE  rcvd: 106


what could be the issue with reverse lookup config?
0
Comment
Question by:linuxperson
  • 3
  • 2
6 Comments
 
LVL 13

Expert Comment

by:Sandy
ID: 40384266
@        IN  NS      dns.example.com.


@        IN  PTR     example.com.
@        IN  A       192.168.1.0

Put "@" and see the results.

TY/SA
0
 
LVL 8

Accepted Solution

by:
Pepe2323 earned 500 total points
ID: 40384719
This comment can sounds stupid but did you set ur dns server on the resolve.conf ?

Regards.
0
 

Author Comment

by:linuxperson
ID: 40398070
I did setup dns server on the resolv.conf
0
Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

 

Author Comment

by:linuxperson
ID: 40398072
Put "@" and see the results. didn't help.
0
 
LVL 13

Expert Comment

by:Sandy
ID: 40404011
paste your zone file here again.

TY/SA
0
 

Author Closing Comment

by:linuxperson
ID: 40443844
the issue was there are comments on this file which DNS don't like it
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I am a long time windows user and for me it is normal to have spaces in directory and file names. Changing to Linux I found myself frustrated when I moved my windows data over to my new Linux computer. The problem occurs when at the command line.…
The purpose of this article is to demonstrate how we can use conditional statements using Python.
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…

932 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now