Hello! May I ask to see what's inside of your proxy.pac to do the fail over between the hosts ? We also use the pac file, but at the moment only to bypass access for our own servers, so the clients wont go to the proxy then to an internal server, then back to proxy, then to the client again. How do you configure the failover in side of the proxy.pac I have no clue. Thanks, Tibby From: Sakhi Louw [mailto:sakhi7@xxxxxxxxx] Sent: Thursday, May 27, 2010 9:07 PM To: Tóth Tibor Péter Cc: squid-users@xxxxxxxxxxxxxxx Subject: Re: Squid3 HA-LB Cluster 2010/5/27 Tóth Tibor Péter <tibor.peter.toth@xxxxxx> Hello! I would like to set up two squid nodes to cache our public internet usage for client PCs. I was thinking to set up squid and use Heartbeat on the servers to have an active/passive cluster in case of one of the servers stops. But why would I have two squid nodes running while one of it smoking from work, and the other just watching ?? I would like to put both nodes to work and somehow get a cluster set up as well, so in case one node is down then the internet would be still available trough the other node. Any help would be apprechiated! Thanks! I use a proxy pac file for fail over it works better. -- Sakhi Louw