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Date:      Sun, 1 Oct 2017 20:07:09 +0200
From:      Matthias Apitz <guru@unixarea.de>
To:        freebsd-questions@freebsd.org
Subject:   Re: help - under attack
Message-ID:  <20171001180709.GA2236@c720-r314251>
In-Reply-To: <59D10B0C.1010702@gmail.com>
References:  <59D10736.2070504@gmail.com> <20171001152637.GA60730@c720-r314251> <59D10B0C.1010702@gmail.com>

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El d=C3=ADa domingo, octubre 01, 2017 a las 11:34:36a. m. -0400, Ernie Luza=
r escribi=C3=B3:

> Matthias Apitz wrote:
> > El d=C3=ADa domingo, octubre 01, 2017 a las 11:18:14a. m. -0400, Ernie =
Luzar escribi=C3=B3:
> >=20
> >=20
> > If you have a firewall (about which you have not said anything), how can
> > SYN-SYN-ACK happen on port 22?
> >=20
> > 	matthias
>=20
> My post says "My firewall blocks all inbound traffic". The login error=20

The term 'inbound' is not very clear. My firewall on my FreeeBSD box
(ipf) blocks traffic incoming for certain ports, it seems that you mean
that you block incoming traffic for a complete network and the firewall
does not run on the FreeBSD box in question.

> messages do not say it on port 22. That inbound port is blocked by the=20
> firewall. All pc on the lan are powered off. Even disconnected the lan=20
> cable from the freebsd gateway host and still the error messages come=20
> out. That is why I am asking for help here.

A I (and others) said: use TCPDUMP to see the details of the connects.

	matthias

--=20
Matthias Apitz, =E2=9C=89 guru@unixarea.de, =E2=8C=82 http://www.unixarea.d=
e/  =E2=98=8E +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub
8. Mai 1945: Wer nicht feiert hat den Krieg verloren.
8 de mayo de 1945: Quien no festeja perdi=C3=B3 la Guerra.
May 8, 1945: Who does not celebrate lost the War.

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