RE: DNS TTL problem

2004-12-22 Thread Andras Kende 


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mark Frasa
Sent: Wednesday, December 22, 2004 5:48 AM
To: freebsd-questions@freebsd.org
Subject: DNS TTL problem

Hello,

I am using a djbdns DNS server which operates almost perfect.

There is 1 small problem, i have for my domain frasa.net 2 namservers:

frasa.net.  3600IN  NS  ns1.frasa.net.
frasa.net.  3600IN  NS  ns2.frasa.net.

This is when i resolve directly on ns1.frasa.net or ns2.frasa.net

When I resolve on my ISP's nameserver and serveral others:

frasa.net.  172800  IN  NS  ns1.frasa.net.
frasa.net.  172800  IN  NS  ns2.frasa.net.

The problem is that this is a TTL of 2 days. When i Trace the dig, is see
that
the root servers are providing the 2 days TTL:

;; Received 512 bytes from 198.32.64.12#53(l.root-servers.net) in 169 ms

frasa.net.  172800  IN  NS  ns1.frasa.net.
frasa.net.  172800  IN  NS  ns2.frasa.net.
;; Received 95 bytes from 192.42.93.30#53(G.GTLD-SERVERS.net) in 154 ms

Can anyone explain this behaviour?

Cheers Mark.
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Hello Mark,

This is absolutely normal... The 172800 is the parent servers
(G.GTLD-SERVERS.net) for your NS records which is default... while 3600 is
at your nameserver.

Take a look here:
http://www.dnsstuff.com/tools/dnstime.ch?name=frasa.nettype=A
http://www.dnsreport.com/tools/dnsreport.ch?domain=frasa.net

Try dnsreport.com with some other domains you will see...


Andras Kende
http://www.kende.com



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Re: DNS TTL problem

2004-12-22 Thread J65nko BSD 
On Wed, 22 Dec 2004 12:47:34 +0100, Mark Frasa [EMAIL PROTECTED] wrote:
 Hello,
 
 I am using a djbdns DNS server which operates almost perfect.
 
 There is 1 small problem, i have for my domain frasa.net 2 namservers:
 
 frasa.net.  3600IN  NS  ns1.frasa.net.
 frasa.net.  3600IN  NS  ns2.frasa.net.
 
 This is when i resolve directly on ns1.frasa.net or ns2.frasa.net
 
 When I resolve on my ISP's nameserver and serveral others:
 
 frasa.net.  172800  IN  NS  ns1.frasa.net.
 frasa.net.  172800  IN  NS  ns2.frasa.net.
 
 The problem is that this is a TTL of 2 days. When i Trace the dig, is see that
 the root servers are providing the 2 days TTL:
 
 ;; Received 512 bytes from 198.32.64.12#53(l.root-servers.net) in 169 ms
 
 frasa.net.  172800  IN  NS  ns1.frasa.net.
 frasa.net.  172800  IN  NS  ns2.frasa.net.
 ;; Received 95 bytes from 192.42.93.30#53(G.GTLD-SERVERS.net) in 154 ms
 
 Can anyone explain this behaviour?
 
Yes, you have something like this in your tinydns data file:
.frasa.net:80.69.78.171:ns1.frasa.net:3600
.frasa.net:80.69.78.172:ns2.frasa.net:3600

If you change the 3600 into a higher number , like 172800 you will
have the same TTL as the GTLD-SERVERS.net servers ;)

== Adriaan ===
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