Description of problem:
Include pam_abl module by default in core
Provides auto blacklisting of hosts and users responsible for repeated failed
authentication attempts. Generally configured so that blacklisted users still
see normal login prompts but are guaranteed to fail to authenticate.
http://denyhosts.sourceforge.net/ does something similar for ssh. This would
mainly be a useful thing to have for ssh bruce force scripts and other
This sounds like a good inclusion for Fedora Extras - see