I've never used cfcache before, I'm looking to load a small list of whitelist IP addresses from a file into a a memory cache to reduce I/O for page requests. Questions: 1. ACF documentation isn't too clear - but it seems the cache (serverCache) is server wide, not per application or session, correct? 2. If so, I assume I should give an ID that is unique to avoid conflicts - correct? 3. To check for updates from the IP whitelist file, I assume I should just set the timeSpan with a value of like 5 minutes, so then if the cfcache for the ID isn't found, then I know to reload the whitelist from the file - is this correct? Any other advise?

cfcache action="put" name="#MycacheName#" value="#MywhitelistedIPs#" duration="#MycacheDuration#" , then define logic aroud your cache bring full or empty.

I hate that lazy tags-to-script syntax. I'm recommend writing code using

cacheGet

and

cachePut

. The cache is per application. Code typically looks something like:

Thanks all