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Notices by Tim 🐧 (tim@social.techn1k.de)

  1. Tim 🐧 (tim@social.techn1k.de)'s status on Tuesday, 16-Aug-2022 06:28:36 UTC Tim 🐧 Tim 🐧
    in reply to
    • Bernie
    • Jan Wildeboer 😷:krulorange:
    @codewiz Same here. After I found out that many of the IP in the postfix log also show up in the nginx log, I decided to use the "sledgehammer method":

    grep ': connect from unknown' /var/log/mail | cut -d '[' -f3 | sed 's/]$//' | sort -u

    Everything found in the postfix log this way ends up on my perimeter firewall's blocklist for at least 30 days.

    The script for this runs every 2 hours on my mail server. Since I've been doing this, the number of port scans, web server "pentests" etc. has decreased significantly.

    @jwildeboer
    In conversation Tuesday, 16-Aug-2022 06:28:36 UTC from social.techn1k.de permalink

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    Tim 🐧

    Tim 🐧

    Irgendwas mit Linux 🐧#nobot

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