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Re:Crowdsec: A Fail2Ban alternative written in Go by abdusco on Monday October 19, 2020 @02:28PM (#24829313)
You should consider changing default SSH port. It helps a lot with the spam.
Re:Crowdsec: A Fail2Ban alternative written in Go by coolspot on Monday October 19, 2020 @05:55PM (#24831478)
Re:Crowdsec: A Fail2Ban alternative written in Go by blibble on Monday October 19, 2020 @02:44PM (#24829508)
and/or add an iptables rule that limits the rate, set high enough such that you'll never hit it

1 line in your iptables config