Date: Tue, 4 Jun 2013 14:51:08 -0700 From: Doug Hardie <bc979@lafn.org> To: tundra@tundraware.com Cc: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: Can sasl/sendmail Report IP Of Failed Access? Message-ID: <10B9A72C-1BEA-498B-8BEA-88641656E434@lafn.org> In-Reply-To: <51AE0C04.2050507@tundraware.com> References: <51AE0C04.2050507@tundraware.com>
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On 4 June 2013, at 08:47, Tim Daneliuk <tundra@tundraware.com> wrote: > I am seeing login dictionary attacks on a FreeBSD mail server being > reported. Is there a way to determine the IPs that are doing this > so they can be blocked at the firewall? auth.log only > notes the attempted user name, not the IP of origin. > --=20 >=20 I wrote some code to find the appropriate maillog entries which do = include the IP addresses. It automagically adds the IP addresses to the = pf blackhole table if certain criteria is met. The criteria is = changeable. If you would like a copy, let me know. =20=
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