[KLUG Members] Blocking By User Agent

[Adam Tauno Williams]

Does anyone have any mod_rewrite rules for Apache that redirect based on
the user-agent strings?  I'd like to match the user-agent and not matter
what the URL requested send them to a blank page.  I see lots of user
agents like ""msnbot/1.0","KavamRingCrawler", and "RufusBot".  Since I
am operating the site on somewhat limited bandwidth I'd just like to can
these requests.