On Fri, 2007-11-16 at 12:03 +0000, Niall O'Reilly wrote:
> On 16 Nov 2007, at 11:40, Byung-Hee HWANG wrote:
>
> > last Monday, my domain master gave me the authority to control
> > [izb.knu.ac.kr] with dns operating. since then, [izb.knu.ac.kr] has
> > been
> > controling by [chrys.izb.knu.ac.kr]. but someday i found out some
> > strange log in [chrys.izb.knu.ac.kr]'s /var/log/messages:
> >
> > Nov 16 14:51:31 chrys named[32597]: client 155.230.10.2#36819:
> > received
> > notify for zone 'knu.ac.kr': not authoritative
> >
> > can you please explain the above log for what? and what can i do for
> > solving the matter?

>
> Some system is sending your server a NOTIFY for the 'knu.ac.kr'.
> Dig is your friend ...
>
> sixte(niall)1: dig +short chrys.izb.knu.ac.kr
> 155.230.165.20
>
> Your server seems to have the address 155.230.165.20.
>
> sixte(niall)2: dig +short -x 155.230.10.2
> ns.knu.ac.kr.
>
> The NOTIFY is coming from a system which seems to be called
> 'ns.knu.ac.kr'.
>
> sixte(niall)3: dig +norec @155.230.165.20 knu.ac.kr
>
> ; <<>> DiG 9.3.4 <<>> +norec @155.230.165.20 knu.ac.kr
> ; (1 server found)
> ;; global options: printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53675
> ;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 13
>
> The server at 155.230.165.20 is not authoritative for 'knu.ac.kr',
> so it can't do anything about the NOTIFY. The NOTIFY not useful.
>
> It would be reasonable to ask the people who look after 'ns.knu.ac.kr'
> to avoid sending you NOTIFY for their zone.


so should i contact [ns.knu.ac.kr]'s operator?

respect,
bh

--
"What you have to understand is that he considers himself the equal of all
those great men like Presidents and Prime Ministers and Supreme Court
Justices and Governors of the States."
-- Michael Corleone, "Chapter 25", page 363