caching question

[Pavel Urban]

Hello,

as far as I know, when secondary nameserver asks primary if his zone is 
up-to-date, it just checks for serial number. What about 
non-authoritative (caching) nameserver?

I have a customer that argued that our DNS server had wrong data for his 
zone. It turned out that the customer forgot to increase serial number. 
How BIND acts in this case?

Thanks!

-- 
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Pavel Urban (pavel.urban at imaginet.cz)
IOL system disaster
Internet OnLine, owned by Cesky Telecom, a.s. (www.ct.cz)
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    Vegetables should not operate electronic equipment.
           Computer Stupidities, http://rinkworks.com/stupid/
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