[ILUG] Weird DNS issue

[Noel Carroll]

For what its worth, the reply I sent to Kenn has just bouned back.   Don't
know if that helps you Kenn or anyone else.

Noel

> -----Original Message-----
> From: Kenn Humborg [mailto:kenn at bluetree.ie]
> Sent: Thursday, June 22, 2000 11:34 AM
> To: ilug at linux.ie
> Subject: [ILUG] Weird DNS issue
> 
> 
> 
> If I ask my firewall's nameserver for the NS records
> for cardbase.com, here's what I get:
> 
>    [kenn at atlas kenn]$ dig cardbase.com ns @cerberus
> 
>    ; <<>> DiG 8.2 <<>> cardbase.com ns @cerberus
>    ; (1 server found)
>    ;; res options: init recurs defnam dnsrch
>    ;; got answer:
>    ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 6
>    ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, 
> ADDITIONAL: 0
>    ;; QUERY SECTION:
>    ;;      cardbase.com, type = NS, class = IN
> 
>    ;; AUTHORITY SECTION:
>    COM.                    2h55m52s IN SOA  A.ROOT-SERVERS.NET.
> hostmaster.internic.NET. (
>                                         2000062101      ; serial
>                                         30M             ; refresh
>                                         15M             ; retry
>                                         1W              ; expiry
>                                         1D )            ; minimum
> 
> 
>    ;; Total query time: 7 msec
>    ;; FROM: atlas.bluetree.ie to SERVER: cerberus  192.168.3.5
>    ;; WHEN: Thu Jun 22 11:26:37 2000
>    ;; MSG SIZE  sent: 30  rcvd: 107
> 
> If I ask, say ns.iol.ie, here's what I get:
> 
>    [kenn at atlas kenn]$ dig cardbase.com ns @ns.iol.ie
> 
>    ; <<>> DiG 8.2 <<>> cardbase.com ns @ns.iol.ie
>    ; (1 server found)
>    ;; res options: init recurs defnam dnsrch
>    ;; got answer:
>    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6
>    ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, 
> ADDITIONAL: 3
>    ;; QUERY SECTION:
>    ;;      cardbase.com, type = NS, class = IN
> 
>    ;; ANSWER SECTION:
>    cardbase.com.           23h44m55s IN NS  ns2.xensei.com.
>    cardbase.com.           23h44m55s IN NS  ann.indigo.ie.
>    cardbase.com.           23h44m55s IN NS  una.indigo.ie.
> 
>    ;; ADDITIONAL SECTION:
>    ns2.xensei.com.         7h41m33s IN A   198.151.175.4
>    ann.indigo.ie.          18h58m47s IN A  194.125.133.10
>    una.indigo.ie.          15h11m19s IN A  194.125.133.11
> 
>    ;; Total query time: 675 msec
>    ;; FROM: atlas.bluetree.ie to SERVER: ns.iol.ie  194.125.2.240
>    ;; WHEN: Thu Jun 22 11:29:23 2000
>    ;; MSG SIZE  sent: 30  rcvd: 151
> 
> What's the story here?  Right now, mail to cardbase.com is
> bouncing with a "host not found".  Am I going to have to
> restart all my name servers (given that the incorrect
> answer has a TTL of 3 hours)?
> 
> Is there any way to force BIND to remove a single record
> from it's cache?
> 
> BIND-8.2.2-P3, Red Hat's latest RPM for RH4.2.
> 
> Later,
> Kenn
> 
> 
> -- 
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