Re: AW: [swinog] Bluewin DNS1 DNS2 replication lag?

2004-01-23 Thread Alexander Gall 
 |
 | ;  DiG 9.4.0s20040114055632  @dns2.bluewin.ch

 nice version of dig ;-) especially if the last known Snapshot is
 bind-9.3.0s20021217.tar.gz.

That's part of what you get for your money when you become a BIND
Forum member http://www.isc.org/BINDForum/ :-)

--
Alex

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Re: [swinog] Bluewin DNS1 DNS2 replication lag?

2004-01-21 Thread Alexander Gall 
On Wed, 21 Jan 2004 11:19:27 +0100, Didier Leimbach [EMAIL PROTECTED] said:

 Hello,
 this is my first post. to me swinog seems to be 
 a good list to post my question. 
 please correct me if i'm wrong.

 here's my question:

 On Monday the TTL for www.juraworld.com has 
 been changed to 1h on ns1.lan.ch and ns2.lan.ch.
 Today ist has been changed to 15min as 
 we're getting ready to move servers.

 Yet, dns2.bluewin.ch doesn't reflect this TTL.

How large was the TTL before you changed it on Monday?  Given the
remaining TTL on dns2 of about 20 hours, this result is to be expected
only when the original TTL was at least around 68 hours (20+2*24,
assuming you lowered the TTL at noon on Monday).

 Has anyone an idea how bluewins dns are setup?
 Bluewin support gave me an almost unbelievable answer:
 dns2 is only backup and updated every 14 days from dns1

I don't know what they mean by update.  I sure hope dns2 is up to
date for the zones for which it is authoritative :-)  However, that's
beside the point since your problem is related to caching.  

--
Alex

 thanks very much!
  didier leimbach



 dig @dns1.bluewin.ch www.juraworld.com

 ;  DiG 9.2.3  @dns1.bluewin.ch www.juraworld.com
 ;; global options:  printcmd
 ;; Got answer:
 ;; -HEADER- opcode: QUERY, status: NOERROR, id: 41
 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

 ;; QUESTION SECTION:
 ;www.juraworld.com. IN  A

 ;; ANSWER SECTION:
 www.juraworld.com.  900 IN  A   62.204.127.37

 ;; AUTHORITY SECTION:
 juraworld.com.  900 IN  NS  ns1.lan.ch.
 juraworld.com.  900 IN  NS  ns2.lan.ch.

 ;; ADDITIONAL SECTION:
 ns1.lan.ch. 2676IN  A   212.60.61.245
 ns2.lan.ch. 1847IN  A   212.60.63.245

 ;; Query time: 218 msec
 ;; SERVER: 195.186.1.110#53(dns1.bluewin.ch)
 ;; WHEN: Wed Jan 21 11:10:32 2004
 ;; MSG SIZE  rcvd: 125

 ---

 ;  DiG 9.2.3  @dns2.bluewin.ch www.juraworld.com
 ;; global options:  printcmd
 ;; Got answer:
 ;; -HEADER- opcode: QUERY, status: NOERROR, id: 41
 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 13, ADDITIONAL: 13

 ;; QUESTION SECTION:
 ;www.juraworld.com. IN  A

 ;; ANSWER SECTION:
 www.juraworld.com.  74385   IN  A   62.204.127.37

 ;; AUTHORITY SECTION:
 com.172797  IN  NS  g.gtld-servers.net.
 com.172797  IN  NS  h.gtld-servers.net.
 com.172797  IN  NS  i.gtld-servers.net.
 com.172797  IN  NS  j.gtld-servers.net.
 com.172797  IN  NS  k.gtld-servers.net.
 com.172797  IN  NS  l.gtld-servers.net.
 com.172797  IN  NS  m.gtld-servers.net.
 com.172797  IN  NS  a.gtld-servers.net.
 com.172797  IN  NS  b.gtld-servers.net.
 com.172797  IN  NS  c.gtld-servers.net.
 com.172797  IN  NS  d.gtld-servers.net.
 com.172797  IN  NS  e.gtld-servers.net.
 com.172797  IN  NS  f.gtld-servers.net.

 ;; ADDITIONAL SECTION:
 a.gtld-servers.net. 108097  IN  A   192.5.6.30
 b.gtld-servers.net. 119329  IN  A   192.33.14.30
 c.gtld-servers.net. 119329  IN  A   192.26.92.30
 d.gtld-servers.net. 119329  IN  A   192.31.80.30
 e.gtld-servers.net. 119329  IN  A   192.12.94.30
 f.gtld-servers.net. 119150  IN  A   192.35.51.30
 g.gtld-servers.net. 119329  IN  A   192.42.93.30
 h.gtld-servers.net. 119150  IN  A   192.54.112.30
 i.gtld-servers.net. 119329  IN  A   192.43.172.30
 j.gtld-servers.net. 118991  IN  A   192.48.79.30
 k.gtld-servers.net. 118991  IN  A   192.52.178.30
 l.gtld-servers.net. 119329  IN  A   192.41.162.30
 m.gtld-servers.net. 118948  IN  A   192.55.83.30

 ;; Query time: 31 msec
 ;; SERVER: 195.186.1.111#53(dns2.bluewin.ch)
 ;; WHEN: Wed Jan 21 11:11:16 2004
 ;; MSG SIZE  rcvd: 483

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Re: AW: [swinog] Bluewin DNS1 DNS2 replication lag?

2004-01-21 Thread Alexander Gall 
On Wed, 21 Jan 2004 13:24:36 +0100, Didier Leimbach [EMAIL PROTECTED] said:

 Hi Alex,
 thanks for your reply.
 I indeed forgot to mention that the original TTL was 24h. 
 So everything should have been as expected since about yesterday.

Yes.  In that case, I don't know why the A RR for www.juraworld.com
is still in the cache of dns2.bluewin.ch.

 I also find it strange that dns2 is giving me all the 
 root-server as glue.

I think that it just didn't happen to have the glue for
juraworld.com. in its cache, so it returned the glue for the
GTLD-servers instead (not the root servers).  After querying it for
the NS records for that domain, it now reports the expected glue (at
least until those records expire)

;  DiG 9.4.0s20040114055632  @dns2.bluewin.ch www.juraworld.com.
;; global options:  printcmd
;; Got answer:
;; -HEADER- opcode: QUERY, status: NOERROR, id: 7936
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;www.juraworld.com. IN  A

;; ANSWER SECTION:
www.juraworld.com.  65625   IN  A   62.204.127.37

;; AUTHORITY SECTION:
juraworld.com.  747 IN  NS  ns1.lan.ch.
juraworld.com.  747 IN  NS  ns2.lan.ch.

;; ADDITIONAL SECTION:
ns1.lan.ch. 330 IN  A   212.60.61.245
ns2.lan.ch. 642 IN  A   212.60.63.245

;; Query time: 3 msec
;; SERVER: 195.186.1.111#53(dns2.bluewin.ch)
;; WHEN: Wed Jan 21 13:37:59 2004
;; MSG SIZE  rcvd: 125

 we'll see what happens by tomorrow

Right.  The old records should be definitely gone by then :-/

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AW: AW: [swinog] Bluewin DNS1 DNS2 replication lag?

2004-01-21 Thread Didier Leimbach 
Hi Alex,

Excellent post of yours. 
I really appreciate your feedback and precise language.
But then again, this should come as no 
surprise from @switch.ch. :)

I could verify that dns2.bluewin.ch stops giving me 
the GTLD (not the root :)) glue, after having been 
queried for the NS for the domain. 
This was my personal 'Today's DNS Lesson'.

Enjoy your evening,
 Didier
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