Jeff Starr wrote back in March about his attempts at keeping scammers and crackers and other undesirables away from his web sites. He’s published his suggested settings for the Apache web server at The Perishable Press 4G Blacklist.
I’m not a fan of adding lots of stuff to my core system files. So I simply put the rules in a file called “perishable-press-blacklist.conf” in my /etc/httpd/conf.d/ directory. If I put them in one of the regular configuration files, such as httpd.conf, I may overwrite the file or forget it’s there. By keeping it in its own separate file, I can more easily tweak the settings.