[fail2ban] Use <ADDR> rather than <HOST> when we only need an IP address #5749
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The fail2ban documentation says that if we don't need DNS resolution, we should use `<ADDR>` instead of `<HOST>`: https://github.com/fail2ban/fail2ban/wiki/Best-practice I confirmed using `fail2ban-regex` that it produces the same results on a sample of 10,000 log entries, and that it is consistently a little faster.
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The fail2ban documentation says that if we don't need DNS resolution, we should use
<ADDR>instead of<HOST>.I confirmed using
fail2ban-regexthat it produces the same results on a sample of 10,000 log entries, and that it is consistently a little faster.