Re: help with FC3 and Bugzilla Bug 161181 DNS truncation

From: Paul Howarth (paul_at_city-fan.org)
Date: 08/22/05

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    To: For users of Fedora Core releases <fedora-list@redhat.com>
Date: Mon, 22 Aug 2005 07:32:32 +0100

    On Sun, 2005-08-21 at 16:54 -0700, Skunk Worx wrote:
    > My FC3 local caching DNS is placing the AUTHORITY section in the
    > responses. I think this exceeds a certain size threshold and I get this :
    >
    > # dig @10.0.0.2 www.wikipedia.org
    > ;; Truncated, retrying in TCP mode.
    >
    > Even though the response has all the IPs listed, and no error in the
    > Header, ping and firefox both puke, unable to resolve the IP address.
    >
    > When I go directly to my ISP's dns, it is fine, I assume because there
    > is no lengthy AUTHORITY section in their reply.

    What lengthy AUTHORITY section? I'm getting just this:

    $ dig www.wikipedia.org

    ; <<>> DiG 9.3.1 <<>> www.wikipedia.org
    ;; global options: printcmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53249
    ;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 3, ADDITIONAL: 3

    ;; QUESTION SECTION:
    ;www.wikipedia.org. IN A

    ;; ANSWER SECTION:
    www.wikipedia.org. 3600 IN CNAME rr.wikimedia.org.
    rr.wikimedia.org. 600 IN CNAME rr.knams.wikimedia.org.
    rr.knams.wikimedia.org. 3600 IN A 145.97.39.133
    rr.knams.wikimedia.org. 3600 IN A 145.97.39.134
    rr.knams.wikimedia.org. 3600 IN A 145.97.39.135
    rr.knams.wikimedia.org. 3600 IN A 145.97.39.136
    rr.knams.wikimedia.org. 3600 IN A 145.97.39.137
    rr.knams.wikimedia.org. 3600 IN A 145.97.39.138

    ;; AUTHORITY SECTION:
    wikimedia.org. 62149 IN NS ns1.wikimedia.org.
    wikimedia.org. 62149 IN NS ns2.wikimedia.org.
    wikimedia.org. 62149 IN NS ns0.wikimedia.org.

    ;; ADDITIONAL SECTION:
    ns0.wikimedia.org. 62149 IN A 207.142.131.207
    ns1.wikimedia.org. 62149 IN A 207.142.131.208
    ns2.wikimedia.org. 62149 IN A 145.97.39.158

    ;; Query time: 284 msec
    ;; SERVER: 192.168.2.11#53(192.168.2.11)
    ;; WHEN: Mon Aug 22 07:30:09 2005
    ;; MSG SIZE rcvd: 283

    Seems a reasonably short AUTHORITY section to me. Are you getting back
    something different?

    Paul. 

    -- 
Paul Howarth <paul@city-fan.org>
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