Date: Fri, 22 Dec 2006 07:59:38 +1100 From: Graham Menhennitt <gmenhennitt@optusnet.com.au> To: Christopher Hilton <chris@vindaloo.com> Cc: freebsd-stable@freebsd.org Subject: Re: Block IP Message-ID: <458AF5BA.5020908@optusnet.com.au> In-Reply-To: <458AE462.1020100@vindaloo.com> References: <200612211533.kBLFXLaW090581@lurza.secnetix.de> <458AE462.1020100@vindaloo.com>
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Christopher Hilton wrote: > If it's at all possible switch to using public keys for authentication > with ssh and disallow password authentication. This completely stops > the brute forcing attacks from filling up your periodic security mail. Are you sure about that? I only allow PublickeyAuthentication ssh2 connections but I get lots of security mail messages like: Nov 16 01:44:08 maxwell sshd[70067]: Invalid user marcos from 202.54.49.7 Nov 16 01:44:23 maxwell sshd[70067]: reverse mapping checking getaddrinfo for 49-7.broadband.vsnl.net.in failed - POSSIBLE BREAKIN ATTEMPT! Graham
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