I also know that I have a unique External IP , which points to my router and is ported to my server via port 80.
Therefore, when reading internet documents about setting up fail2ban defaults, I'm not surprised that IP 127.0.0.1 is mentioned, because it's not unique to me.
But, when reading a very informative website, I am amazed to find my External IP address quoted!
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In a section headed [DEFAULTS} it states, ignoreip = 127.0.0.1 31.125.xx.xx bantime = etc...etc..
How is this possible, or is my understanding of unique IP addresses completely wrong?
p.s. I'm not being precious about publishing my IP address, it's just that I get 100's of hacking attempts on my server already and I don't want to add to it unnecessarily.