Date: Tue, 25 Aug 2015 10:58:12 -0400 From: "Michael B. Eichorn" <ike@michaeleichorn.com> To: Polytropon <freebsd@edvax.de>, Jaime Kikpole <jkikpole@cairodurham.org> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: Blocking SSH access based on bad logins? Message-ID: <1440514692.6714.13.camel@michaeleichorn.com> In-Reply-To: <20150825162841.b8f840ab.freebsd@edvax.de> References: <CA%2Bsg5RRppb8-paYnYtL8UMnSfP0ebzUwtM4LLNGayudCwXpyag@mail.gmail.com> <20150825162841.b8f840ab.freebsd@edvax.de>
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--=-sZSmk6i9hVhTM1V5j1Re Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, 2015-08-25 at 16:28 +0200, Polytropon wrote: > On Tue, 25 Aug 2015 09:16:16 -0400, Jaime Kikpole wrote: > > I've noticed a number of SSH login attempts for the username "admin" > > on my FreeBSD systems. None of them have a username of "admin". So > > I > > was wondering if there was a way (even via a port) to tell the > > system, > > "If an IP tries to login as 'admin', block that IP." >=20 > I think "fail2ban" is the solution you are searching for. >=20 >=20 >=20 > > I'm already using SSHGuard to block certain obvious attempts to break > > in. I'm fine with altering its configs or adding/switching to a new > > port. >=20 > You'll find "fail2ban" in the FreeBSD ports collection > along with some documentation. It's easy to set up. :-) I thought SSHGuard and fail2ban were both equally vaild solutions to ssh banning. Both use the logged failed attempt and create system level block to the offending IP. Am I wrong on this? --=-sZSmk6i9hVhTM1V5j1Re Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgMFADCABgkqhkiG9w0BBwEAAKCCEqAw ggYwMIIFGKADAgECAgMOXcYwDQYJKoZIhvcNAQELBQAwgYwxCzAJBgNVBAYTAklMMRYwFAYDVQQK Ew1TdGFydENvbSBMdGQuMSswKQYDVQQLEyJTZWN1cmUgRGlnaXRhbCBDZXJ0aWZpY2F0ZSBTaWdu aW5nMTgwNgYDVQQDEy9TdGFydENvbSBDbGFzcyAxIFByaW1hcnkgSW50ZXJtZWRpYXRlIENsaWVu dCBDQTAeFw0xNTA2MTMyMDI0NDZaFw0xNjA2MTQwMDM1NTBaMEgxHzAdBgNVBAMMFmlrZUBtaWNo YWVsZWljaG9ybi5jb20xJTAjBgkqhkiG9w0BCQEWFmlrZUBtaWNoYWVsZWljaG9ybi5jb20wggEi MA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDJVdWALPz5h2s5zUQGIJYl6Vp8FPtZNko8q/3s crCsxXJLprMaDdpnqTsmkbmEfKvsqPQE6HVOpGxVRTl/tCm+VvouW9eY9ITMigb1OnHdU13CKO0j drgeU1nHst0qxwsIofRD7nC4dakT6exnrVndlBmLrf/bLPh2qOM8YK5qKK6m33fE7AyYrwiYAWFT 3fERI7LakjaabrIoS/Y1rCdL5FaCTMOlRbZyduc8HkrgjT2JW+i4fVcKyGL5gExBJWfS3q1uGFaB 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