Date: Sat, 13 Nov 2004 10:03:15 +0530 From: "Subhro" <subhro.kar@gmail.com> To: "'dave'" <dmehler26@woh.rr.com>, <freebsd-questions@freebsd.org> Cc: 'Drew Tomlinson' <drew@mykitchentable.net> Subject: RE: limiting ssh logins Message-ID: <41958e9c.4aebf626.6427.0014@smtp.gmail.com> In-Reply-To: <000501c4c934$21a46200$0200a8c0@satellite>
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-----Original Message-----
From: owner-freebsd-questions@freebsd.org
[mailto:owner-freebsd-questions@freebsd.org] On Behalf Of dave
Sent: Saturday, November 13, 2004 9:22
To: freebsd-questions@freebsd.org
Cc: Drew Tomlinson
Subject: limiting ssh logins
Hello,
I'm wondering if it's possible to use pam or perhaps tcp_wrappers to
limit how many ssh logins can be atempted? I'd like to kick off a user who
tries to log in repeatedly with the wrong password or tries x times within a
minute, my purpose is to slow down hacking atempts in situations where
public key authentication is not possible.
Thanks.
Dave.
If you are using ipfw as your firewall, you can simply add a limit rule to
port 22 (or whichever port ssh runs on). Refer to man ipfw.
Regards
S.
Subhro Sankha Kar
Block AQ-13/1, Sector V
Salt Lake City
PIN 700091
India
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