<% if node[:squid][:version] == "2" -%>
http_port 80 accel defaultsite=tile.openstreetmap.org tcpkeepalive=60,10,6 http11
<% else -%>
-http_port 80 accel defaultsite=tile.openstreetmap.org tcpkeepalive=60,10,6
+http_port 80 accel no-vhost defaultsite=tile.openstreetmap.org tcpkeepalive=60,10,6
#prefer IPv4 until everything is upgraded
dns_v4_first on