[Koha] Mystery system slowdown

[dschust at tx.rr.com]

I had something similar happen in November and the robot.txt resolved it for me at that time.
--
David Schuster
Library Technology Coordinator
Plano ISD

---- Paul Poulain <paul.poulain at biblibre.com> wrote: 
> Le 29/02/2012 01:00, Agnes Rivers-Moore a écrit :
> > Dear friends
> > That is problem #1
> > 
> > Here is problem #2
> > We have also noticed that opac-search.pl and mysqld is causing heavy
> > loading.
> 
> Since a few days/week, we (BibLibre) face the same problem, on various
> Koha : on our hosting server (20+ libraries), some of our libraries that
> have their own server, small or large.
> 
> After investigating a lot, we think it's because something happened with
> web crawler : we suddenly have *a lot* of queries coming from googlebot,
> bingbot and baidu (the chinese search engine). Plus some dark-net bots
> that try to exploit some security holes that are fixed (like reading
> /etc/password with a ../../../../../etc/password), but in case this Koha
> is not uptodate that could work.
> 
> How did we fix that ? quick fix = drop packet at firewall level. We will
> have to investigate for a more long-term fix
> (not sure a robot.txt will be enough, but not sure it won't too)
> 
> -- 
> Paul POULAIN
> http://www.biblibre.com
> Expert en Logiciels Libres pour l'info-doc
> Tel : (33) 4 91 81 35 08
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