max-ncache-ttl

[Forrest Aldrich]

Reading pg. 294 (Chapter 10) of the 4th edition BIND nutshell book, it 
explains how it might be prudent to set the max-ncache-ttl variable to 
something like 3600 (1hr).

However, I wonder what the performance tradeoff might be, on a server that 
you want a rich cache buildup to be created (for maximizing internal use).

We've only run into 2 incidents where we needed to stop/restart the server 
due to an older record being cached.   Would be nice if there were some 
other way to poke the DNS server to drop a record(?).

Just curious, thanks.


_F