How can I configure fail2ban on a GCP instance? When I look at docs for Digital Ocean:
The maxretry variable sets the number of tries a client has to authenticate within a window of time defined by findtime, before being banned. With the default settings, the fail2ban service will ban a client that unsuccessfully attempts to log in 3 times within a 10 minute window.
destemail = root@localhost sendername = Fail2Ban mta = sendmail However, google blocks port 25: https://cloud.google.com/compute/docs/tutorials/sending-mail/ Seems like a chicken-or-the-egg problem. How do others solve this? thanks, Thufir ||
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