peoples in my organization do online bidding, and if browsing interrupt/disconnect for any reason(e.g hardware failure) and restore within a 50 or 60 seconds.. their session terminate/disconnect, and they lost. we need uninteruptable web/proxy services. we need Highly Available Proxy Infrastructure/Services what are the possible solutions does following are the options 1, Clustering Squid (I think session will break) 2, Clustering two virtual machines, and virtual machines are running Squid, so if one host machine downs/crash, the other host machine continue running squid (I think in this case, session wont break, because the other host machine will run the same squid) please suggest/recommend Regards --ms