In article <mailman.1106.1270851311.21153.bind-us...@lists.isc.org>,
 Mark Andrews <ma...@isc.org> wrote:

> I would be asking operators of primary-dns.co.uk why they are
> actively cache poisioning.  They have not been delegated aaisp.net.uk
> so they should not be serving aaisp.net.uk.

They could be a stealth slave, hidden master, etc. There's no rule that 
says that a zone has to be delegated to you for you to be authoritative 
for it.

The address of primary-dns.co.uk is adjacent to the address of 
auth.primary-dns.co.uk, the server that aaisp.net.uk us delegated to.  
They may have all their servers configured as authoritative for all the 
zones they host, so that they can use them as hot spares for each other.

-- 
Barry Margolin, bar...@alum.mit.edu
Arlington, MA
*** PLEASE don't copy me on replies, I'll read them in the group ***
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