dstiles:" There are several acceptable DSL ranges within 37/8 including my own country UK."
With a severely polluted block, such as the 37. (and many other EU zones) we find it less fiddly to block all, then Allow the acceptable niches. (Of which there are few.)
Lucy24: "Deny from 18.104.22.168/8
Deny from 200"
Thank you :) I recall trying that approach a few months ago, but quickly reverted as it wasn't covering the cidr like the full notation does. It seems the full-stop is vital, as for example:
deny from 37. which does the job.
But apparently, these variations don't (in root .htaccess):
deny from 37/8
deny from 37./8
The Apache docs only mention the full Monty.