Hey I have four computers(with linux): two with mediawiki(mirror, both connected to one db) one with mysql one server(DHCP,DNS etc) I configured on my server load balancer and now hen I type in browser name.local for example I get one of my mediawiki servers. I press f5 really fast and then I see in top command both computers are being loaded but not much. I used tool ab (apache benchamrk) but if I run it always is connected to one server never alternately. I use this settings: ab -n 100 -c 10 http://name.local/