[squid-users] refresh_pattern and same objects

[Marcus Kool]

On 09/01/2015 05:14 AM, FredB wrote:
> More precisely
>
> I reduced the ttl of the first line
>
> refresh_pattern -i \.(htm|html|xml|css)(\?.*)?$ 10080 100% 10080
> #All File 30 days max
> refresh_pattern -i \.(3gp|7z|ace|asx|bin|deb|divx|dvr-ms|ram|rpm|exe|inc|cab|qt)(\?.*)?$ 43200 100% 43200 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 100% 43200 ignore-no-store reload-into-ims store-stale
> refresh_pattern -i \.(jp(e?g|e|2)|gif|pn[pg]|bm?|ico|swf|dat|ad|txt|dll)(\?.*)?$ 43200 100% 43200 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 100% 43200 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 100% 43200 ignore-no-store reload-into-ims store-stale

trackers use a 1x1 gif extensively and they usually have parameters, e.g. www.example.com/track.gif?browser=chrome&allsortsofdata&random=RANDOMNUMBER
and these trackers are not cacheable since the parameters are never the same.
So for gif, I suggest to

refresh_pattern -i \.gif$   43200 100% 43200 ignore-no-store reload-into-ims store-stale
refresh_pattern -i \.gif\?  0 0% 0

Marcus