ref, http://www.squid-cache.org/Doc/config/refresh_pattern/ if i wanted to ensure that *all* objects without explicit expiry time should be considered fresh for 4320 seconds, what do I set? #1: refresh_pattern . 0 20% 4320 or #2: refresh_pattern . 4320 100% 4320 I think #2. but then why would #1 have 4320? or, ims goes out based on some combo of min, percent & max values? any help would be much appreciated. many thanks in advance.