i have two questions, #1 is simple: is there a way to control who accesses my arcgis server layers on the web?
#2 what is the best way to do choropleth maps on the fly but cache them so that the 2nd time they are not having to be drawn again. I can cache individual layers and such, but the problem is the database is updated often, so i dont want to have to publish a layer for every new set of data/year.
currently, the only way i think i can accomplish this is query a database and draw polygons on the layer geographies based off the value in the database that matches the geography. this takes a long long time for geographies such as blockgroups though, and the data isnt cached obviously.