Date: Mon, 19 Sep 2011 23:44:09 +0400 From: =?koi8-r?B?59LJx8/S2MXXIOHMxcvTwc7E0g==?= <mr.festin@yandex.ru> To: James Strother <jstrother9109@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: limit number of ssh connections Message-ID: <946851316461449@web97.yandex.ru> In-Reply-To: <CAAOvGP2Gj0=ZAYZn2KZYUa3NTCHVtUdtQqHumM1D5Ea26dzPrQ@mail.gmail.com> References: <CAAOvGP2Gj0=ZAYZn2KZYUa3NTCHVtUdtQqHumM1D5Ea26dzPrQ@mail.gmail.com>
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If your target is protect freebsd box from bruting passwords from inet maybe security/knockd will help you? 19.09.2011, 23:05, "James Strother" <jstrother9109@gmail.com>: > Does anyone know a good way of limiting the number of ssh attempts > from a single IP address? > > I found the following website, which describes a variety of approaches: > > http://www.freebsdwiki.net/index.php/Block_repeated_illegal_or_failed_SSH_logins > > But I am honestly not really happy with any of them. šContinuously > polling log files for regex hits seems...well crude. šJust to give you > an idea of what I mean, here were some of the issues I had. The > sshd-scan.sh script allows IPs to be reinstated, but the timing is > dependent on how frequently you rotate logs. šsshguard has a pretty > website, but I can't actually find much useful documentation on how to > configure it. šfail2ban looks like it might work with sufficient work, > but the defaults are terrible. šBy default, every time an IP is > reinstated, all IPs are reinstated. šNot to mention, at present I > can't seem to get it to trigger any hits. > > I suppose I could keep shopping, but the truth is I just think polling > log files is the wrong way to solve the problem. šAnything based on > this approach is going to have a long latency and be highly dependent > on the unspecified and unstable formatting of log files (see > http://www.fail2ban.org/wiki/index.php/HOWTO_Mac_OS_X_Server_(10.4) > and the troubles an exclamation point can cause). > > I would much much rather do something like this: > > http://kevin.vanzonneveld.net/techblog/article/block_brute_force_attacks_with_iptables/ > > Does anyone know a way to do something similar with ipfw? > > Thanks in advance, > ššJim > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
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