[Unbound-users] howto optimize cachesize ?
tguthmann at iseek.com.au
Fri Dec 24 00:37:32 UTC 2010
> I'm faced with the question if my unbound's cachesize is large enough.
> The ideal size is reached, if unbound discards entries from the cache
> *only if* their ttl was expired.
You won't be able to fit all DNS records in your cache except if you
have 2 or 3 users always hitting the same websites. Rule of thumb is if
you have free RAM use it! For your cache usage, use unbound-control with
extended-statistics: yes to see your usage.
To summarize, your cache won't be big enough to cache the whole Internet
:) So use the maximum available RAM you have and start from here (keep
some space for your OS:).
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