ons 2012-01-25 klockan 08:50 -0800 skrev Luc Igert: > Hi Amos, and thanks a lot for your answer.I Forgot to say I’m running as a > Reverse Proxy with multiple backends, Squid 3.1 > > What’s confusing for me is the fact that www.xxx.ch is working, while > backup.xxx.ch or wbbltest.xxx.ch aren’t. So what cache_peer and cache_peer_access/cache_peer_domain rules do you have? You get this error if Squid can not find any acceptable cache_peer to forward the request to, i.e. no alive cache_peer where cache_peer_access/cache_peer_domain says it can forward the request. Regards Henrik