Comments on: How to Check Linux Commands History by Dates https://www.ubuntumint.com/check-linux-commands-history-by-dates/ UbuntuMint - Everything About Ubuntu Linux Mon, 24 Jul 2023 08:30:32 +0000 hourly 1 https://wordpress.org/?v=6.9 By: George https://www.ubuntumint.com/check-linux-commands-history-by-dates/#comment-22 Tue, 09 Feb 2021 14:00:46 +0000 https://www.ubuntumint.com/?p=614#comment-22 I would like to see how some experts peruse secure and messages file to filter out IP addresses that failed ssh logins.

I wrote a simple bash script that does that then using gawk to isolate the failed IP Address. Then create a firewall rule to refuse that IP access. I could also use /etc/hosts.deny ALL:ALL.

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