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Date:      Thu, 26 Apr 2007 13:58:54 +0200
From:      "=?ISO-8859-1?Q?Andreas_Wider=F8e_Andersen?=" <wodfer@gmail.com>
To:        freebsd-questions <freebsd-questions@freebsd.org>
Subject:   Re: How do I prevent unauthorized ssh login attempts?
Message-ID:  <23ed14b80704260458l204c01c9xa4398be47610200a@mail.gmail.com>
In-Reply-To: <20070426112111.G4140@duane.dbq.yournetplus.com>
References:  <78814ac0704260357g2bedb91s48c9f8aa7cd4f27f@mail.gmail.com> <23ed14b80704260407v39dd1d3al109148fef1d8a0f6@mail.gmail.com> <e572718c0704260412y406a5fb5mdab5f4f0ae50780b@mail.gmail.com> <20070426112111.G4140@duane.dbq.yournetplus.com>

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On 4/26/07, Duane Hill <d.hill@yournetplus.com> wrote:
>
> On Thu, 26 Apr 2007, Pietro Cerutti wrote:
>
> > On 4/26/07, Andreas Wider=F8e Andersen <wodfer@gmail.com> wrote:
> >> On 4/26/07, Arek Czereszewski <arekczer@gmail.com> wrote:
> >> >
> >> > Andreas Wider=F8e Andersen wrote:
> >> > > I'm getting a lot of unauthorized ssh login attempts. I have a
> pretty
> >> > basic
> >> > > FreeBSD 6.2 setup. I have compiled my own kernel. Here's what I ge=
t
> > from
> >> > my
> >> > > daily security run output:
> >> > [...]
> >> >
> >> > Run sshd on other port.
> >> > And say about this your ssh users.
> >>
> >>
> >> Can I change the ssh port on a live server somehow without getting
> locked
> >> out? The server is on a remote co-location a flight away from me.
> >
> > Yes you can. SSH will keep your connection active until you log out,
> > then you can log in using the new port
>
> I will add the fact you will want to keep the current connection live and
> test after you make the change with a new connection. That way if the new
> connection fails, you still have a "foot in the door".


Thanks! I got it working without having to fly out to the server. :-)

Let's see if this will prevent the unauthorized sshd login attempts.

Cheers,
Andreas



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