Date: Tue, 20 Feb 2001 18:01:00 -0700 (MST) From: "Geoffrey T. Falk" <gtf@cirp.org> To: security@freebsd.org Subject: IPv6 risk with ssh? Message-ID: <200102210101.SAA38561@h-209-91-79-2.gen.cadvision.com>
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From time to time I've noticed sshd on "tcp46" listening right now on one of my servers (4.1.1-RELEASE). I don't see it always. # netstat -an [...] tcp4 0 0 *.22 *.* LISTEN tcp46 0 0 *.22 *.* LISTEN What is tcp46, a hybrid IP4/IP6 protocol? Should I be concerned? Nobody else has (legitimate) access to this box. I'd prefer to disable/block all IPv6 for now if possible. How can I be assured that this is the case? I am currently running ipfw with a default deny rule. I don't have a way to probe the box using IPv6 currently. Thanks Geoffrey To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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