WordPress is probably the most used content management system. CloudFlare helps reduce load on your server with a free content delivery network for static assets.
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How to Install Fail2Ban 0.10 with IPv6 support on Ubuntu 16.04
Ubuntu 16.04 doesn't have Fail2Ban 0.10.x in the distribution repositories, so if you want the newer version with IPv6 support you'll have to do the
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How to disable (or enable) IPv6 AAAA records added by CloudFlare
I was surprised to find that CloudFlare created AAAA records for my domains when my server doesn't support IPv6 at all. Reading the CloudFlare community
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