Not able to create connections to http://dmoz.org/http://www.dmoz.org/Health/Public_Health_and_Safety/Disease_Control_and_Prevention/Poisoning/Plants/ from your server. The reason might be a firewall, proxy, or http://dmoz.org/http://www.dmoz.org/Health/Public_Health_and_Safety/Disease_Control_and_Prevention/Poisoning/Plants/ or your web hosting company might be blocking outside connections. Another possibility is a timeout because of slowdown in internet itself.