Monday, October 30, 2017

Re: Fail2ban alternative for OpenBSD

Je 2017-10-29 02:20, x9p skribis:
> Hi,
>
> Coming from the Linux world, I wonder if there is a better alternative
> to fail2ban, already being used in OpenBSD servers by the majority.
>
> cheers.
>
> x9p

Hello,

jca imported sshlockout from dragonflybsd. It's in security/sshlockout.

It's dead simple, here is an extract of the man page :


# in /etc/pf.conf
table <lockout> persist { }

# and later in /etc/pf.conf - see below
block in quick on $ext_if proto tcp from <lockout> to any port 22

# in /etc/syslog.conf
auth.info;authpriv.info |exec /usr/sbin/sshlockout -pf lockout

# in root's crontab
3 3 * * * pfctl -tlockout -T expire 86400

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