Hi all, We have the following proxy structure at the moment: Internet --- Squid cache1 --- Squid cache2 --- users | ICAP Anti Virus server The documentation of the AV server states clearly that they don't recommend having a caching proxy behind it because then a virus may be cached and served for a while. If this is indeed the case then I would like squid cache2 to send of only the cache-hits for a rescan because the misses anyhow already passed through SQ1 and were scanned, is this possible? Also it seems to me that this anyhow may not be 100% true, because would the AV server not warn when squid tries to establish of the file has gone stale before serving it? Thanks for your help, Eli