TCP_HIT:NONE and Last_Modified

Greetings,

Converted squid logs to Common Format. Noticed a lot of TCP_HIT:NONE.
According to the documentation on the access.log, an Action of
TCP_HIT means object is in cache, but a Hierarchy of NONE means
object was not in cache.

1) So is a TCP_HIT:NONE page being served from cache?

2) Do pages require a Last_modified stamp as well as Date: and Expires tags
or are the last two sufficient for a page to be cached? The legend on
http://ivs.cs.uni-magdeburg.de/~elkner/proxy/Squid/httpcodes.shtml
implies that all three are required in the page header.

Thank you,
John Kent
Naval Research Lab
Monterey CA
Received on Thu Dec 16 1999 - 12:40:30 MST