Today my IP was blocked by my server. I was told it was because of a mod_security rule that got triggered. I'm told that the regex that got triggered was
I don't know much about mod_security and was told
If the regex ^((?:(?:POS|GE)T|OPTIONS|HEAD)) is found on any of the scripts on your account, mod_security will trigger and block access from that IP to the server.
What exactly is this regular expression in mod_security looking to prevent?
I have run many of the files that I have uploaded to the server through this regex and didn't get any matches yet. I would like to know what this trying to accomplish so I can figure out, maybe, what caused the blocking and prevent it in the future.