DNS time to live lookup delays...

1999-05-04 Thread Lev Lvovsky
Hello,

I recently set it up so that my linux box runs the klaradio.com domain.  I
am running my own DNS server off the machine, and I have a few questions:

one of the addresses that I'd like to put under a subdomain of the site
(stream.klaradio.com) has it's IP changed somewhat frequently (once a
month), a guru here at work mention the TTL option in the DNS settings for
the site as being updated more frequently than normal for this so that the
cache files of other servers aren't outdated...since then the guru has
left (*snifff*), and I'm really curiou how to do thismore
specifically, would this change the TTL times of the whole site?  I assume
that it would, as I 've only seen one entry for TTL for a whole zone.

Also, I'm running this over an ADSL line 384/384kbps that usually sees
around 20Kb/s during peak hours...is it normal for there to be a delay of
around 10 seconds for a lookup to be performed by a non-local machine
(heh, go ahead, give it a try :).

thanks !!!
-lev


Re: DNS time to live lookup delays...

1999-05-04 Thread Jens B. Jorgensen
Your TTL already seems to be zero (note the second field in the answer record):

chilin$ dig stream.klaradio.com

;  DiG 8.1  stream.klaradio.com
;; res options: init recurs defnam dnsrch
;; got answer:
;; -HEADER- opcode: QUERY, status: NOERROR, id: 6
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
;; QUERY SECTION:
;;  stream.klaradio.com, type = A, class = IN

;; ANSWER SECTION:
stream.klaradio.com.0S IN A 164.67.190.178

;; AUTHORITY SECTION:
klaradio.com.   1d9h40m58s IN NS  NS1.klaradio.com.
klaradio.com.   1d9h40m58s IN NS  NS2.klaradio.com.

;; ADDITIONAL SECTION:
NS1.klaradio.com.   0S IN A 209.241.149.168
NS2.klaradio.com.   1d9h40m58s IN A  209.241.149.169

;; Total query time: 3604 msec
;; FROM: chilin to SERVER: default -- 127.0.0.1
;; WHEN: Tue May  4 09:46:03 1999
;; MSG SIZE  sent: 37  rcvd: 133


Lev Lvovsky wrote:

 Hello,

 I recently set it up so that my linux box runs the klaradio.com domain.  I
 am running my own DNS server off the machine, and I have a few questions:

 one of the addresses that I'd like to put under a subdomain of the site
 (stream.klaradio.com) has it's IP changed somewhat frequently (once a
 month), a guru here at work mention the TTL option in the DNS settings for
 the site as being updated more frequently than normal for this so that the
 cache files of other servers aren't outdated...since then the guru has
 left (*snifff*), and I'm really curiou how to do thismore
 specifically, would this change the TTL times of the whole site?  I assume
 that it would, as I 've only seen one entry for TTL for a whole zone.

 Also, I'm running this over an ADSL line 384/384kbps that usually sees
 around 20Kb/s during peak hours...is it normal for there to be a delay of
 around 10 seconds for a lookup to be performed by a non-local machine
 (heh, go ahead, give it a try :).

 thanks !!!
 -lev

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