Sometimes I am receiving messages like this from my server:
nas.myserver.mydomain.com login failures:
Jul 17 08:35:02 nas sshd[5994]: reverse mapping checking getaddrinfo for
162.132-254-62.static.virginmediabusiness.co.uk [62.254.132.162] failed
- POSSIBLE BREAK-IN ATTEMPT!
On different days they are from different IPs and they would-be mapped
to different reverse dns names. How to deal with those messages/attempts?
GrzegorzJ
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