Category: SSH

Nov 17

Resolved: Reverse mapping checking getaddrinfo for {Reverse DNS hostname [IP Address]} failed – POSSIBLE BREAK-IN ATTEMPT!

Resolved: Reverse mapping checking getaddrinfo for {Reverse DNS hostname [IP Address]}¬†failed – POSSIBLE BREAK-IN ATTEMPT! If you start looking at the SSH log: “/var/log/auth.log” you might come across a lot of “Reverse mapping checking getaddrinfo for {Reverse DNS hostname [IP Address]} failed – POSSIBLE BREAK-IN ATTEMPT!” messages. In my case I only had login attempts …

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