> > I'm thinking about something like this > > Sorry wrong move :) So, What I meant was I'm thinking about something like this # HTTP 1/1 # The refresh_pattern rules applied only to responses without an explicit expiration time # min 1440 minutes # Max 10080 minutes # http 10080 / 60 / 24 H = 7 days refresh_pattern ^http 1440 10% 10080 # All Files 30 days max refresh_pattern -i \.(3gp|7z|ace|asx|bin|deb|divx|dvr-ms|ram|rpm|exe|inc|cab|qt) 43200 99% 43200 ignore-no-cache ignore-no-store reload-into-ims store-stale refresh_pattern -i \.(rar|jar|gz|tgz|bz2|iso|m1v|m2(v|p)|mo(d|v)|arj|lha|lzh|zip|tar) 43200 99% 43200 ignore-no-cache ignore-no-store reload-into-ims store-stale refresh_pattern -i \.(jp(e?g|e|2)|gif|pn[pg]|bm?|tiff?|ico|swf|dat|ad|txt|dll) 43200 99% 43200 ignore-no-cache ignore-no-store reload-into-ims store-stale refresh_pattern -i \.(avi|ac4|mp(e?g|a|e|1|2|3|4)|mk(a|v)|ms(i|u|p)|og(x|v|a|g)|rm|r(a|p)m|snd|vob) 43200 99% 43200 ignore-no-cache ignore-no-store reload-into-ims store-stale refresh_pattern -i \.(pp(t?x)|s|t)|pdf|rtf|wax|wm(a|v)|wmx|wpl|cb(r|z|t)|xl(s?x)|do(c?x)|flv|x-flv) 43200 99% 43200 ignore-no-cache ignore-no-store reload-into-ims store-stale Maybe my values are too high ? About reload-into-ims if I understand right it translates "Pragma: no-cache" into "If-Modified-Since" if the object is cached and if there is no explicit expiration time, in real life this should be dangerous or annoying for users ? The context is many simultaneous users (thousands) with very different kind of profiles Regards FredB _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users