ted se mi to povedlo vyresit takto, ale nevim, jestli je to spravne (ze tam jsou dve entity $HTTP["host"] =~)
$HTTP["host"] =~ "(^|\.)spanelstinanachod\.cz$" {
server.document-root = "/var/www/spanelstinanachod.cz"
server.errorlog = "/var/log/lighttpd/test_error.log"
accesslog.filename = "/var/log/lighttpd/test_access.log"
server.error-handler-404 = "/404/"
url.rewrite-once = ("^./?(.*)/$" => "/index.php?page=$1")
}
$HTTP["host"] =~ "^spanelstinanachod\.cz$" {
url.redirect = ( "^/(.*)" => "http://www.spanelstinanachod.cz/$1" )
}