My server is getting hit pretty hard by (what appears to be) script kiddies in China. I'm just looking for some thoughts/ideas on how to potentially setup some type of Fail2ban proc?


Question: Confused by the task given (involves identical inequality of functions)
Answer: The notation means that the function $g$ is not identically zero.  This means that $g(z) = 0$ for all $z$ does NOT hold.