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DNS Stop Responding after one line was added

Posted on 2009-07-05
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Last Modified: 2012-05-07
My wuestion is base on the code below. The DNS server is workng now But I do not understand why.Can somebody outhere give or guide to an explanation what was tha I did to make it work?
Is there any tool to check the systaxtof a DNS file? why it have to be so hard to update a namaed file witout messit up?
; Notes

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

$ORIGIN domainname.edu.

$TTL	14400

@	IN  	SOA   servername.domainname.edu.                   staff.domainname.edu. (

		; Serial Number YYYYMMDDVV

			; Refresh in

			; Retry in

			; Expire in 

			; Minimum TTL of

        )

		IN	NS	Server1

			NS	Server2

 		IN      A       <IP web site hosted out side premises>

www		IN	CNAME	@
 

Server1		IN	A	<server IP>

Server2		IN	A	<server IP>
 
 

; A records and CNAMEs

name		IN	A	ip number 

name		IN	A	ip number 

name		IN	A	ip number 

name		IN	A	ip number 
 

This was working fine. Now I included the line on; A records and CNMES as:
 

kbp           IN      A       <IP hostess outside our premises>
 

And the DNS stopped working (the idea here was that anyone can type n the address browse kbp.domainname.edu and will go to the right web site. It was just a redirection
 

Now After many changes and many questions the line that worked was:
 

Forentdomain.com.   IN   A          < IP hostess outside our premises>

kbp                 IN   CNAME      Forentdomain,com.
 

So the dns dis not work with

; A records and CNAMEs

name		IN	A	ip number 

name		IN	A	ip number 

name		IN	A	ip number 

name		IN	A	ip number 

kbp         IN    A       <IP hostess outside our premises>
 

But it worked now with:

name		IN	A	ip number 

name		IN	A	ip number 

name		IN	A	ip number 

name		IN	A	ip number 

Forentdomain.com.   IN   A  < IP hostess outside our premises>

kbp                 IN   CNAME      Forentdomain.com.

====why the forentdomain.com.  works on theeft side of the file? it should not be at the right side?????======

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Question by:Jorge-123
2 Comments
 
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by:
Kerem ERSOY earned 500 total points
ID: 24779616
Hi,,
there are several problems with your SOA record, The commented areas should have some values such as:

You dont need this line:
$ORIGIN domainname.edu.

Please modify the values such as these:


$TTL    7200
@       IN      SOA   servername.domainname.edu.                   staff.domainname.edu. (
                       2009070401  ; Serial Number YYYYMMDDVV
                       3600              ; Refresh in
                       600                ; Retry in
                       1209600        ; Exipires
                        7200             ; Minimum TTL of
        )

For acceptable values for these values please see RFC-1912 and RFC-2308.

There's no problem with the definition:

kbp           IN      A       <IP hostess outside our premises>

It should normally work but I guess the problems with SOA has prevented it.

For a detailed problem record see your /var/log/messages file.



 
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Author Comment

by:Jorge-123
ID: 24781033
KeremE:
Thanks. I will look for the log files also I will look for the RFC.
When DNS stop responding , the NAMED file started fine but none of the names on the db.domainame.edu was resolving ( ????) .
Is there a utilility that I can test the named  or the databases inside it  that they are well written ? or theore is a way to test this file before puttingit on a live system?
just plain curuiosity.
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